|

 下列函数为奇函数的是
A:<img class="kfformula" src="data:image/png;base64,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" data-latex="y={cos}^{3}x">
B:<img class="kfformula" src="data:image/png;base64,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" data-latex="y=cosx+sinx">
C:<img class="kfformula" src="data:image/png;base64,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" data-latex="y=\frac {{e}^{x}-1} {{e}^{x}+1}">
D:<img class="kfformula" src="data:image/png;base64,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" data-latex="y={xe}^{x}">
<img class="kfformula" src="data:image/png;base64,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" data-latex="{^{lim}_{x\to 0}\frac {{x}^{2}sin\frac {1} {x}} {sinx}}=">
A:1
B:<img class="kfformula" src="data:image/png;base64,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" data-latex="\infty ">
C:不存在
D:0
设函数y=x,则<img class="kfformula" src="data:image/png;base64,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" data-latex="y'=(\, \, \, \, \, \, )">
A:1
B:x
C:-1
D:-2
<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/shuxfxfs/20061012/5da114cf.JPG" />
A:A
B:B
C:C
D:D
<img class="kfformula" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAALEAAAA3CAYAAABDwKsAAAAFoklEQVR4Xu2cPcwOSxTH/28tSkQndHpBohDRCBG3QkgUQukjVERJRdDeexUSgooI0YhKQTSiUCFaNBJRk3+yh8lkdp+Z3dnz7Myerd4873ydc35z5szZmV2BPaaBwjWwUvj4bfimARjEBkHxGjCIizehCWAQGwPFa8AgLt6EJoBBbAwUrwGDuHgTmgAGsTFQvAYM4uJNaAIYxMZA8RowiIs3oQlgEI/LwF4AuwF8A7AGwH4ApwA8HbfbebVuEMfb+zSAG0DSq/o7AI46XVwAcDmxjfgR5im5A8AeABcTm6NczwC8TKw3uLg2xK8AbAVwBsDNwaPXb+AQgPsJ3f4KyMrftPUeO2QCfA7AP7EVnHJS95o2yNrKJAT3Akbs4+V66Fm9CuVyJ+vUPTFXjieJE9VVKu27z1t9Rle6NsRU0pEWT5Tq5XIqR5T/vmmU8evZ5m/GtYe9cRPODY2X5aqyqol5twPY1jIwAnw8EBNTJxIzv2n+/9jpP6ecXW1xbASwjxd2233YTIRbWgPXhphL6aMMisqtn48ANjmNuku+xLXubwyLCKsvTyhU4ATZ2LS9xZOdbXNl4kaPdfkwFl1G3Ez4HgzwwqI+yntQ08bLgNiNh0Nejsro8nQ0eoznSwGdAH0CQO9xxavIsXzxwiAJE1xoKQuX4i6dEn4+4q2vOx5XIKY3XJ0BphT5Gc/e9iZySn2/LJ3CMa3YWBPikJFDXo4K6fJ0zBDIUp9rkyQxOfsmzK5X5m8cJ5+uTEMo3o2NiaX/u9rxZCMX++cq4co3BGLqi6GRyuZdE2J6HXpht8+QlxNPTAX4kKZ6vhhDcPn70SzpbRtP9su4eJ1jGN+r0vvQk/90yvjZibaNHZfyA00fKdmPGPliyuSGLvek6JRBE2IamRsYf+MT8nIctG9wP4MhGyXfa8YYzS3jg+bHxywrk8fN+/I3xq8SfkgZN0Tw88QEn5tGGTNl+tCEIexH7EHZ/LAmVa6U8hzXf80kTKnXVpabxBMdm9wcffxpQxNiMbrrqQQQ38tJSOHGj/RW6x3FhDxfH+UQJMbYfAjY88AbNY6dS71swlywpU+Oh1mF1048yxDqkjMoF2Bpg+ELn3fNEsy/fR31kSulTq6wzHcOKnypdNJIFvJmbV5Ofvc93SLPl2I4K/tXAwZxJA0hTyWw+l4u5Ol8Rbe1Fzmcoosxduf+os/D1cIPVQziPpq0OpPSgEE8KXPYYPpowCDuo7UJ1Nk5gTHEDuE7gLexhXuUy/1ygi9PrtaYneihW6uipAFmZJh5yXXegSk2Zpx4lnr0RzM7MbowM+og98bu3yaHn3qGuE3lPPvBdOJJDZsYxBpann4fuQ/t5DpMFKW52iGWY45UBj1DrrMBUcotrFDoTWVfEXK2tXAMNUPMV7ebHXAJNM8La77OXWiACRVgSPE5g36od561VgklqL+SIeaS9X/HpUv/TEStt0dyzYNcGQWewzivdQyzdIh50KYrRAjlPsfIh1KPU7mdMRRoTvS1PS6JSr/c0H3VOoIpnWp74tzGJpQ8RB66Aq8F8ZRuZwyFmPUZVrzocSifm8NdmmHEMiAew9hy0N49GCSyaUE8ldsZOQCWNghyakzbp06WMWt64lhjy7X+VAH9zwBoQSzjXPbtjFR9VVNeE+IxjE1w+EWd0Fd1tCFe9u2MaqBMFWQZEOc09qKY2PXOY2UnpnI7I9X21ZTXhDi3sRdlJ5iv5LfP5DoUJw8vL+bOE8tNaUKxzNsZ1UCZKogmxLmNzbdCiz7OJ+AyFccE/NAPg6Tq18oraEATYgVxrIs5asAgnqPVK5PZIK7MoHMUxyCeo9Urk9kgrsygcxTHIJ6j1SuT2SCuzKBzFMcgnqPVK5PZIK7MoHMUxyCeo9Urk9kgrsygcxTHIJ6j1SuT2SCuzKBzFOc3NYJGR2fM5lwAAAAASUVORK5CYII=" data-latex="{^{lim}_{x\to 0}\frac {sin3x} {x}}=(\, \, )">
A:0
B:<img class="kfformula" src="data:image/png;base64,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" data-latex="\frac {1} {3}">
C:1
D:3
设<img class="kfformula" src="data:image/png;base64,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" data-latex="I=\int {\frac {{e}^{x}-1} {{e}^{x}+1}}dx">,则I=
A:<img class="kfformula" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAALUAAAAxCAYAAACccuhnAAAF4ElEQVR4Xu2bO+wvQxTHv7f1KBGdV3ULjQgSFGgEN1QIofCIyiNUNBoqgu7GoyAElUeIBgUKoqL2KiSE0qMln2RPstbs7szszvn/7/zPVjf3tztz5ns+c+bMmfkfUzyhQGcKHOtsPDGcUEABdUDQnQIBdXcujQEF1MFAdwoE1N25NAYUUAcD3SkQUHfn0hhQQB0MdKdAQN2dS2NAAXUw0J0CAXV3Lo0BBdTBQHcK9Ab1lZKul/REd576/4CekvSRpC+OwFiLhtgT1AD9qKRbihQ4dV+28T4bYP/XiT1B/bqkDyS9depyWmz5bZJulHRn8Zcdf+AJ9UOSbpd0maSvJF2+o673DM49KlF6LN07w2R+ZUc9a5pi5bha0jWSzhga+FPSH5JelvTh8H/46oKWKaIn1CbUP5JeknR/jXIz3+DYt3eM0kT93yWdJelrSQ9Kel/SIzvavNQUgFwyBAG0WgKWaH3rAadd5PePD359bwQwY7Q0CR1/kPTmMK5mK6o31DiAQd274qgSdhDtVUkXlny08C5AYyORhQnIw8YTx3no9fHg/E8LtPpe0t0HkFuj/TPD5EejJVDR9Y5Bz6Y6Nm08AY7N6Kt2dABpzaU75pXPjSKyQU3eeuaOK0Hu/KP/nAAAMETCF3Ib3uE9CyakEjn+5P3PJX0i6bod+p9twhtqotD5O0ZVBtbKoUyW5yW9sXHCMOZaJ+ZCvWVi19rHd9cWphJfDlA3Lbl6Q42T3t05/0OotbyzJjCQp99c6LRUP9hXuynOhZrN132V/dTYZytu6YSnLwJFs3waB3hCfcOwS2eWPp3wPhHXHkpULFcPSPpb0mmSLpoRBMfnjgMbqMDwWLvTMiBR77vB1rFGbIRSdq9NmBporM1cqHm/RIexzaX2WRpBG6RlVtVY04HfmQxNo7Q31EDBoFJC8Ns3o80Z8FB5eG2UewP9FYnUJdeZ9EFEo5IxdsTUqbTHLp3n2yFX5d9/VeaspdCM4TiMUJsfm+fGObMk9U5uhKttf/ydLeepPm0GWzQHqulu/sVhiZ1+nwO1OYIoPV36tkCXo8uW9g8j1JZLz624OZo0fccTaspOP85smljy2bnb5uzhRFScmxRrUNtESeV/HjXe3qC2ilAqQDSFNbdxL6gtD1s7dLFaZsquuU3mGtQW4cdOIA3hZJNy1JM7lhdTuvcKdQk7BJaS3DuX3+R7JYZt6cgi8FrNdS6a26FNaslbO3gAKgBmQtnDMf2vOwrNKnLujEB2LSD1M8fIS+W+3PTDDkHmqix72meRuoQdgpXb/ZQSw7ZAvRSBrV2L5mwSpztk+z5V5CfH4wRw7igZJxzkpsYjUrPysBLV1MNL7bMgkXPggm+x7ZzKylEVc15QIwSPRZJUecyieSpXm4I5Lg2RXnBPY65U1OKuSYnYpdDUVD/Qg2pRzX2aUvts052zUbSyrFuURjwvqAFrvFFLQT0Xzaf3RRDqrpED1zZ7RHJuis3d4LO6dKucrxSaGqi3XOiqsY+Ub+14/MDue3tCbZtEIPw5sTlby6fNVuA/Ofmeb+cuNLH8cfVxulzaQUzrO9g10BjYuTn10vjXVpUa++zeB22nLjIRtI4n/LRmyy6/e0FtOR83z+yQZToAHJgq5fGenTaePnPFlBTkp4W8jWh80+hQhTZ5/7PGlQ/6KYUGIM6TdPGwwaUN2+Sm0gt7vyb1qLFv7Df6PjG6I//L8COB4sDud3tBvcsMXGhkbfffuv+l9kuhLrWV9h/bMDlb21c6ns3v9wI1QhCNz/a4W1CoOvluq7/IYYP4W+XxvQ2jpX2FUu3zek9QowhpCClO01tg+0i/uRX2JvzpVG3asdmAw9pAb1Ab2EfB0UzgozDO4rnTI9TFIsQHfSkQUPflzxiN4+FLiB0KuCkQkdpN6ujIS4GA2kvp6MdNgYDaTeroyEuBgNpL6ejHTYGA2k3q6MhLgYDaS+nox02BgNpN6ujIS4GA2kvp6MdNgYDaTeroyEuBfwFNH01B9BI7nAAAAABJRU5ErkJggg==" data-latex="ln({e}^{x}+1)+C">
B:<img class="kfformula" src="data:image/png;base64,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" data-latex="ln({e}^{x}-1)+C">
C:<img class="kfformula" src="data:image/png;base64,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" data-latex="x-2ln({e}^{x}+1)+C">
D:<img class="kfformula" src="data:image/png;base64,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" data-latex="-x+2ln({e}^{x}+1)+C">
<img class="kfformula" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGUAAAArCAYAAABhLkbTAAACrklEQVR4Xu2YPa9NQRSGn/sDlPwAfoP4CAp0PhIdIRrclkRHTafQ+miE0ImgQyQkiE6NP6AkWvImM7LvvnvvNfecMysTe51un732zJr3WWvNmlkjfs0psNacR+EQAaXBIAgoAaVBBRp0KTIloDSoQIMuRaYElAYVaNClyJSA0qACDboUmRJQGlSgQZciU4ahXACOAz/S6+3AC+C+B8OAslnla8Bu4FTv1VPgM3CzNpiAslHhA8A74CDwvid+fqcMelkTzFygfAT2Fgh5AzgyYatxXgPXC8Za2GQuUF4Bz4HbhlKy+zlQuvJnKmHbgKMLK17woTcUlYDzya+dHaEuAzuAPcCbCnV7bJ/oS6RM+AKsj2h3J2XSrgJtFzbxhqJIu5Xq9bHU0VwBvqY6rUhV+ajh1x/gotFByeauAeVSJf/+Qayx+LEIUZQ9622SEuERcC599A340HleONoGPjwNPAbOAE9GBp4llG5ZKBFplVA0Vp5Tbe3QZj07KH2B1emo1pdkay51q4T0aaDLmj0U7R/6Ve1kehStTFH5VMs7q42+q5GiUiWk+gk5TVpSLtV9/ZoIFJdAKikdqywZeSzdLd1L90vd07GagbEoXdYPZYECYOr+SiVV8MZaXo2hJuG/ODw+BPZ1Fqvns739RPvG/koL1t51suBUn/euoauUqXfLBsyG770yRaUqb6w6QB4CFJV58frv6sRJetlFl57oNY8AHh4oYRqjxsF209q8oOSFCsz3VEJ0ij+RnuXYg4FLwGVh5O8VFFtZq3zTTfHvNICu7t8WXNOsxN+tOLqSCWMQW4GAYmvkbhFQ3CW3JwwotkbuFgHFXXJ7woBia+RuEVDcJbcnDCi2Ru4WAcVdcnvCgGJr5G4RUNwltycMKLZG7hYBxV1ye8KAYmvkbvEXg7hwLHyST7gAAAAASUVORK5CYII=" data-latex="x\to 0">时,下列哪个变量为无穷小量( )
A:<img class="kfformula" src="data:image/png;base64,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" data-latex="\frac {1} {x}sinx">
B:<img class="kfformula" src="data:image/png;base64,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" data-latex="\frac {1} {x}cosx">
C:<img class="kfformula" src="data:image/png;base64,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" data-latex="xsin\frac {1} {x}">
D: 1-sinx
下列变量在给定的变化过程中为无穷小量的是
A:<img class="kfformula" src="data:image/png;base64,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" data-latex="\frac {sinx} {x}(x\to 0)">
B:<img class="kfformula" src="data:image/png;base64,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" data-latex="\frac {1} {{(x-1)}^{2}}(x\to 1)">
C:<img class="kfformula" src="data:image/png;base64,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" data-latex="{2}^{x}-1(x\to 0)">
D:<img class="kfformula" src="data:image/png;base64,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" data-latex="{3}^{-x}-1(x\to 1)">
下列两个函数是同一函数的是
A:<img class="kfformula" src="data:image/png;base64,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" data-latex="y=\frac {{x}^{2}+1} {x+1}与y=x-1">
B:<img class="kfformula" src="data:image/png;base64,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" data-latex="y=\sqrt {{x}^{2}}与y=x">
C:<img class="kfformula" src="data:image/png;base64,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" data-latex="y={3}^{2x}与y={9}^{x}">
D:<img class="kfformula" src="data:image/png;base64,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" data-latex="y=lg{x}^{2}与y=2lgx">
函数<img class="kfformula" src="data:image/png;base64,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" data-latex="y={(x+1)}^{2}+5" width="122" height="25" style="width: 122px; height: 25px;">的单调增加区间是
A:<img class="kfformula" src="data:image/png;base64,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" data-latex="(-1,+\infty )">
B:<img class="kfformula" src="data:image/png;base64,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" data-latex="(-\infty ,-1)">
C:<img class="kfformula" src="data:image/png;base64,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" data-latex="(-1,1)">
D:<img class="kfformula" src="data:image/png;base64,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" data-latex="(1,+\infty )">
<img class="kfformula" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAp0AAAAxCAYAAACYlBKCAAATKklEQVR4Xu1dZ8huRxGeiBBBEBUVowjRIIJKQLGXiOWP2A0axYbYERuKXURQUVTs2JVYMDGxNwhW7MYOimIhIvhDQUWxIioP2THzzd0yu%2Bfs%2Bc577/P%2BSu63Z8uzs7PPzs7Mnib8EQEiQASIABEgAkSACBCByQicNrl%2BVk8EiAARIAJEgAgQASJABISkk0JABIgAESACRIAIEAEiMB0Bks7pELMBIkAEiAARIAJEgAgQAZJOygARIAJEgAgQASJABIjAdARIOqdDzAaIABEgAkSACBABIkAESDopA0SACBABIkAEiAARIALTESDpnA4xGyACRIAIEAEiQASIABEg6aQMEAEiQASIABEgAkSACExHgKRzOsRsgAgQASJABIgAESACRICk8%2BSQgXNF5JMi8q%2BTYzgcxSQEriwiDxCRiybVf1zVzpb/2fUfF257bJdYx2flPiLyBRH5a/yT7pI3EJHfdH91xQdLv1/QND/dIwIkneOzcicRuaeIvGC8iv9/%2BTIR%2BayIfHWgriuJyJtF5Iki8lgReddAHVt%2Bgv6%2BVkSeX1GWIEeXiAiU6lKF%2BkwRefWBYFOah1uKyHdF5B4i8vkFk6WyArm9WQe2%2BO42IvLNQttni8gvXX3XF5EbJpm%2Bjoj8qXIoQtm7isj7B8Y2W/5n1I/5fI6IPKKCCdYA9MGvG%2BUGIDvhE%2BqyMRRn6DK7bmq9WiqXkC8Q1seJyM8qDeGQ%2BpFB3WP7WNJdqtteISLPG5sGfnVICJB0js0WlDTIDBbkGj%2Bt7zUDxBNKCkTkVQdAOIGVbqYgJOcUFJ6WuW4nOfJzoUoPhOeQFRrk7K0i8iIRefsCgVM8vmNkRUl5pNrSxqAbh6/jd2mOr5pIc6uNkUNTVP4hU28Qkad33ghE62%2BNzf69hJctA%2By%2BLCI/FZF3i8hlPQ10lKUu6wDLFZ2ly7AmccirHUpULp88eBBVGfxQox3onocMHnwUHxhmSodlJbUYK/rC27pxeTyIL0k689OEjf3aIvL7pOxf7orBIvMpEblgxVnGwr63iDy8s04sWlgOW5arJdakzi5Vi0c28YiyivRJ63lHgJC3rHGR9maUWZM450in9hnzAmv7gzIHgdYmiA0M1hCVQT9/LctebWOLELQe3FubrK9rxvryeOX6X5urnvFSl/Wg1Vd2li7T9fPFymG5tWZalnSsaRzGWzdjvp0e3Qw5hz4pHfjX1G19M8fSx4YASeeJ0OOqGwTwLBH5qIjcX%2BTIG/WPSeRwLSun7QHaA5ltKQL9JroxqXK8yQ6umaGIQG5KVk6MTcd18eAp3hIpnLBb1oDoqf84FmpUyUc2wBHSGbGoeBLlSeYS0lnDfGTTOkNETg9aDmetr61IJ3XZ3BU7U5fZg95TkotQ72hKByys6Y%2BLyF2cS4y9Do%2B0lbsyt4f3%2ByVLvV7fezec2kE30j7LHCACJJ0nTtp/RQSWsccnP7UfuWt0EMMLV7Zyai9Ads9z7VnCmBMxXMO9RUReXJE/q3y2cD6vLYWS1cwGEPSSztoVsV5T4sRd%2Bum1MbDGFe9LNlzLer20ZpOla2pLos5Prhx69VXaACLXa55E4ZtrmsPTLNIZ2fRbuB7H%2Buqx3o64HOiYqctas7/s7zN0mfaodvMStb6XRpdbnyWLZGT923b0kHzbQuPwUdYbEeB3rYwllH6ey%2BRy11%2BTdB6dHpC%2BDya/r9dnZg7%2BT9isYQWd9UNAxqMCvp0lK0yvkpg1jly9rZO0kuN/p%2BCopZbOPWMRwX3EkufrjfhswmIB30F/vR61slrS%2BfdMoFiEZPVee0etkMCjFQhVk1Xr/4pya8jUFpZO6rLIChsvs7Uu055al6H3iMiDOw0gOd9m1RE5y2VJ3ksBT6UAJcULbjg/FhEYAxDIBAPPe900fEJEcCuH8b2pI%2BBxfDb55WYIkHQehRrXUYiqhm/lpzOz8DQRufWA32XPhMJf9FIRyZFeW0/ptLsk2rCnnyNla9Y0KCN1JlfSiYj80ajGHlIyMpYtvln7%2Bql2BZ9rK2pRsSTqnynI7pUGoBmWTt0McfOAg2Lk1xP9P3N9bUE6qcsiEjFeZktd5vW%2BBvZYPRmVbRDMHxi3JTsO7HvI9NHz8%2B22SKcaEmo%2BpRGXnp4%2BsuyOECDpPDoZOR9OWyJKCJdMcYTY1hblGpaYJf2vfVvqGxQQ/Jb02sVer/8xRT73WsLWJmyzMKnV2wrg6e2TWhxzV7YeL09Qay4PlkTdWERg7bRpWNYknfb6LrLR2jHDmvu1AGiz11fE8qvdHL1epy4LTPSCIrN1mcqIlXF/89B7sEafERWPwB4rgzUZy%2BX2tf34h1tTEdKJdfhSEXlCIVr9ZNDdC0Tr5P50S9Kp0dlInwJLno8Ih4XxzORLeVyoax7C2xU6gL9HIqGX9B%2BBSsidVupD68p1r6Sz1O/cv3uC00s0gP9ecYjKxozTvr1q9xZk2x6iZjX3q%2B%2Bv9cnSv/nrdaQmeqMhnmuSzpb82/622s3NRav%2BNeQqaun0OEZlB%2BWoy3rQ6is7Q5f563pcMSOtHK6XNU2aP4TmSGftdsL6j2P9o25P/lQPXCUZAXBzgXyxNpLeBwhZ9CKkE8YFBMuWcjCTdPbJ40GV3op03ktEIKgIzgGpeqeLCAdocHr/2Iq5L6MTgb4h/yF%2B6vz8rfT/r3P%2BMuhjBDP4fj4y1XGj9FoQrsthxYSDONqBP4sn3trnUjuRhNG5TRHKqZWQHW0v7XcNc42YRD8wz6pwcn6DOataJCeett9rAYjKypbl1rZyWuIOy8bVReTZJouAKnq7yXkCZ9Mi1f7m/cYilr2oJTviPjIaiDB7fS2RnwhRpS67AuFD12WeePUGHLbWE3Rk7VCjQT7YG0E6ba7N2itDLdL5WxH5eiKxpfZJOpdoip1/GyFQawwBJzU4C0N48d%2Bw5Nm2oSyRKgiCXSJia/SjVoc63tf6ECWduNrSRO86NiSl/kXyFf2ciNy9QmBL7dgNt2aNKo0zZ6WyZZf2u4avRkx%2BX0SuYXyKcptp6So3qoxKKUF8/7SdBzZSOM2WPV%2B/kqbWfOE7tUxg7moJ8FEnZPsvIvKVFBBnX7y5eXol58Mi8kN3Pd6y/uXm0PpsWYsj8t/614dqlhOLjc4/rufeVkmnVXMjaMmovr6y1vpqRcf3ylZEJqjLLk93t0QHt%2BQE2Rlm6rKIrltyuPYR7BjvM0TkM2nta/AdAukiLxcpXi3SaYNDS4GKkbH3rhuW3wkCW5FOOLXrc5GIzv6GC8bB1TrK5AJ4oEBB2EZ%2BuKKIkljtw0Mr0YAR0glSjRxoNhAJ333AjDmHgR1frh1spEiLhKi%2BWt7J2vUfFAle%2BcFp0//W6Hdpjqzl6z8u0CSXNqM3ZZJvF3VeT0TuaKzXub7pizk/TwoXV8LH/SKGjv3biQRivls/jAMpT3ClWuo/MEH6LxBsjci2Pl4qN89NVnqbNqq1CeRIpyWaSmgRKIb5z70M1Lq21s0MfmBPFZFaZoOIVTBH9GeuL9verdJc2LlqjV%2B/r61hLUNdtlwHH7cua6059G%2BUdKLunE9l7hBeIpE1fHCYLaVM8n7Y3p8f9WL9tnI5t3Qi/75TBLYinTp8tfp5x%2BWW0/sW8CFI6GGN6/Mo6YQbgf7U6lAjs358vh0sQpCK3FWH/za6eeVI50i/gRtebsIPVqzci0ro05%2BNZUpP1CDf/urGKtORlEk1K%2BcIGdlC9mwbSsJxzV16IciWj2xOusk8KblZ%2BDRAqE8tk0hT4q%2B9Wlf9OVztPIA42xdSrEUFbdurw1xQg934cECAv%2BkI6cxtcLrJzV5fljSqv6wd6%2Bi6zcknddnlrly9OnhPuiyyrmuks5QDM1ev9QNFECDkU3VEpB9WBnssnSWCSdK59a6zYXtbk05N4%2BHbPS5/Tgt1y/EeZSOk009facy1abbtWGtUJG/iWptXpN%2BwqNzUEE0o7Z846zKUlr9OVRJ9kXs%2B0W/MI6Szlopj76TTznVU2UfKKenXK2NPOr1lWecH1/WR%2BkuWTvUB9aTT1t8itJD5S0QEjxrADziX2SCqMmFlwXvm1tK69foqPXFYWrct14bc2KnLjqJyiLrMrruRVEaKgA0YLCVur0Wvlw7xpXXbSzpzVleSzqhGO8ByW5POnDLcgz%2BnEkp7BZ6bzmjidvst/Dfxw4YX%2BcEBHrnSEL3u01VsSToj/QY5huuD5hRFoBSCr1pyZSM1cwpv9Hq9Fa28Z9Lp%2Bx4he5CnVjnIDDYI5M0sWUb8xqLl4LN2i/RGc8tfFATzfSLyQiPkGsxgr9dxpRzNRuAJJ6qOXClG5/k41ldpQ40EikRz1np3Huqytg7emy5rrevoWvBz72%2Bd9O%2BRRyRycuQDlnpJZ67O6PqN7KcsszMEWuRg7e7aZ9m07oj/0dr98PVFHO/xDYgYElFH30ZXMtsTIIXoflzF50jqlqQTc9Xqd87yG7UG106zOs6e9FQ5guLneVSZaTCIphEppfoYlVPU75/fjGw6EdJpnz0tETZr7dMx9IzZ4oqoeLx3j2Cxc1JQQu4wMGqRj8jG6Dxvsb6wuQOX77nnVkfxoC5rr7pD02WRdT1KOttoHS3RK5cknb0In2Ll90A6W/6cWwQSRYkvgm3gv6hBUS1x0fRQPkAK9VifI1sProLgG5n7%2BxabIvoS7fco6VRCBesY/AyVnCgOEWLhsfd%2BgjNO0GqNaqUjacmF/XvJqX8t0mnbypHOUuoUHasGW9lk771kPkc6tS%2BIAkaAUTSAKyIbeyWddk6Rr9i%2Bd927uZdkjLrsKDKHqMtsxoOadTti9Y/qolyAmq41BJ/qwx2t%2BtYgndbHdO0Dfqv//PtkBLYmnbheR9ogDTZRBQnLSPT6eQYkEcd7tAsCfF4llyjqub15mz1XL9wJ7lAhriDhFxYi6JeSTv8EmmI52u8R0qkKVSPwNb1NhNyU5r50ZdRLjiKytTbxPDflcfWkayvSaf0rdfxW6eMpUrh71Py%2BWiTPkk5EryN4DFbs89N/Iwm2P3iU5mLPpLO0vkpWKZV96L6rJf3SQ8BzGFGXjengvegyyJDNn1tbW0tIp3fnyKXiUr/NR6e0SYhIb7l4rEE6W37eET3NMjtFYGvSqVZLEM%2B/JashiCfSGkWthzOgjDjea7vw6zyr0AkoLiSWhz8mfDOxkdpUUPg3LCgs%2BNKvVr9uuEjtgpQ2pbQULYx82orRfvcq6pICtT6evu8tqyLqhN9hxOWhpsCjlibb18gzjK25KP3dWjsidUT64jepnEtCTuGrv1fpYBAhnZqOyLso%2BOCG1ji2IJ1rry/MX86FwZJRkPtIDs6WLFCXjengPegyXWd%2BDVhd0NKHXj6se00rS4T9Npfpweq%2BEvksBStp3bmxWdeiUqBdS%2B759wNBYGvS6WGp5efcEsKcr2mpfVyNX1bI/4nx3C0Rz18lIoTgGix8/D9%2BmiQ/V3/rKdCIpTOCm39RYrTfPYq6lMLD9zdCtqziRS5OfU878m0Ln8jGby1UsNLP%2BPVYOtGHWu5W7Z8nndYloSVbdsPyG1%2BLdOpmWtqo/KGj9Ra0WkrtQSNiuWnNUwuD1vf6d7%2B%2BctZkX1ft4OXL1qxN1GVjOngPugzznMvhqvM/ot/sWtKE73owycmz6raajJXIMeobsXRqm9qf0uEWc5T7qaEHf9tbmT32KYJRVNd1l9uSdIKs4RUeayXcQ6qk3jyaNrq8G/DGB1AGz0pXjrmipQW9dj%2Bi9UUiPpUMtCxY0TZPlXLYYHDtDIJV%2B50hIqeng1ALG2sl/EPKnYoUQmgj4rdVSkzeIp34DgR3jeT7LUunbmA14lrCacb6Klk4W3Olf7dkunUgoi6LonpiuVNdl6mcta7PFbmSK0kuRV50VpgqKYrUAZfbknRiUVvfTc2ddufAxro2xPCbPDsRYPQDZBhX4tGfvqG%2BpksA%2BoETnqYfivblOMvBQnpfgx1wvbTjFajj7DvbJgInAwLUZevM4qmsy2q5jddBl7UQgYTAlqQTDu4aQNR7Il97wiwBhg8lyOMFnY3Acos3aXu/yzUDPHAtX4po7%2BzapsWVaCLi/syGv%2BqmHWNjROAUQIC6bL1Jpi5bD0vWRASyCGxJOjXyW1MgIN%2BlfZ98yylS30kQpS8tsC7WUh/1jGetenraZFkiQAQOHwHqssOfQ46ACJwyCGxJOk8ZUDlQIkAEiAARIAJEgAgQgaMIkHRSIogAESACRIAIEAEiQASmI0DSOR1iNkAEiAARIAJEgAgQASJA0kkZIAJEgAgQASJABIgAEZiOAEnndIjZABEgAkSACBABIkAEiABJJ2WACBABIkAEiAARIAJEYDoCJJ3TIWYDRIAIEAEiQASIABEgAiSdlAEiQASIABEgAkSACBCB6QiQdE6HmA0QASJABIgAESACRIAIkHRSBogAESACRIAIEAEiQASmI0DSOR1iNkAEiAARIAJEgAgQASJA0kkZIAJEgAgQASJABIgAEZiOAEnndIjZABEgAkSACBABIkAEiABJJ2WACBABIkAEiAARIAJEYDoC/wODacmbmkpjsQAAAABJRU5ErkJggg==" data-latex="y=f(x)在{x}_{0}处左、右极限存在是f(x)在{x}_{0}处连续的\_ \_ \_ \_ \_ \_ \_ \_ \_ \_ ">
A:充分条件
B:必要条件
C:充要条件
D:前三者均不是
<img class="kfformula" src="data:image/png;base64,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" data-latex="{^{lim}_{x\to 0}\frac {{e}^{x}-1} {{x}^{2}-x}}">=( )
A:0
B:-1
C:2
D:3
设<img class="kfformula" src="data:image/png;base64,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" data-latex="{e}^{x}">为f(x)的一个原函数,则<img class="kfformula" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAK0AAAA8CAYAAAAUlTqlAAAGlUlEQVR4Xu2cye8tQxTHv29rxYLYEfZ4CzHEzEY80wohhhi2CCsiWHgrEraGGEKwMsfGGBLEwrA2LrHgPyAfqSOV1vfequrq7qr7O7V5ye91V536nm9Xf8/Q95B8OAKdIXCoM3vdXEdATlonQXcIOGm7c5kb7KR1DnSHgJO2O5e5wU5a50B3CDhpu3OZG+ykdQ50h4CTtjuXucFOWudAdwi0StpbJd0j6VtJj0j6pTtk3eDZEGiRtNdIekHSGZKel/RdIPBsIPjEfSHQImk5XT+R9GQ4aSEwp64PR+BfBFojLafrN5IOB8K6mxyB/yHQGmk5XdGzx7qvHIFNCLRGWgIu5AG61ocjMIpAS6Q9WdLPkh4NGYPWXHaepMslPVjBsMckvS/p8wpzHbgpWiItsoBswcUhEGvJGRD2PknXVjLK5nvCiZuPaEukJUtwi6TjJP2Vv5VZ73hZ0ruSXqu4yvWSjki6qeKcB2KqlkhrBQRkwtLjaUnHS/ojFDKORgbcHshV65SN9/ZGeBiey9jw3ZJukHSWpJ8knZpx715c2gppTc9+KumihZFFX3Lq4XxIRBAY48LfXq98ytoWWfe6Qtnxo6TvC+9dGOK6y7VCWtOzawRhf0t6RtJdkoZEQHu+OPNpxprIopygDLs+k8QboUZgWJdVM8/WCmlNz94WSrgzb/u/6TnpXg0Vt6dGFuVVfObMuhO9/LWksfU34YBd5LSRCTV19lK4T1qnFdKSmz19hUoY0uCBoFnfG0GyhFC5Dil5MLDrxgYrmrl7L7q+BdJS/fozWL+0PWMaNgbyyyAdcgKlXEcQ6N0p6eyMG5EU5LQvy7hnby5dmiRjwBF4fRy6ueg9SBloupvDhadIeie8Xjm1TgiR9UdB822bD1IyNhEGvZuC0VR7tq3Dnq4MmYJjgpwh/bZJz061JQX/Va9JccjcBtIv+3AIeAjIUgYnpCXmrwhpIzrBfpDEa/4DSZduIBzXPxQWIW3E+Cr8i06MNWIqaafYw9Kb1kEGnBidqBDy8fBQbtKzU21JwX/Va1og7ZuSrs4o35JTfSuQ08DD6a9EAROvzy92BFAWhBF9x3nZ2CEppK1hz9g6aG009/mDzMI2PTvFFvAobQF9O+GtVo3oLZCWosJJGeVbHEN6yoaRLzeSNlJsuy+VtFPtGa5jKa34QbT9bpM0tbCpRrA5JlqbtHEQVlq+tQxA7l5SIvAU0g79UmLPcB2bY+yBivPKuzhRYsuuOVf//1xH1zbYgrBfJZWWb9GvjNxIelcQxpwlif9ce0ynxsEgtqG3h/4h0/CspDskpWQ0cm2p7d9Z5lubtBaEoVFLe2g5ebbp0k3ADXXw2HU4neJDCkFifZ1jD0TkRI0fOmwjOBxmNXj9kx5L9VspNrOQrdakqZuvtd5wHquE3RsqPLnr2MlDt1RcHBhqu+G8KUEY9zAPTTSppdISe3iF06wT6+JNEiB+O+zq7821xQOxRPZZJSy1hxYdek7UCzCmS0lpnbuDaClBGFvY1dBSw56xhhxkyYcDIltqz/okyN/+FqXoatiS6LZ1L1v7pOVEYaTaEb82OWkuCGkhO2lTm7VTgjDzDATa1P5Xw56x+XmororkgZ2q/N1Iyx7iXtwatqzLxsTVU8mSOF3WZfblbU47Ik67JOg9eknRmnHFCANeSuiYSgnCbDNIBNJyY7ncqfZwPwFoLA3ida3H1yQKJz9BGHun4hcXQqbakuW8NS9ek7TWjkh3U2lSuxS7nLTRWHRfuu7wPh6e+xMeslrr7cU8a5LWMgd8EUBVbKlRUoywnobUgCxlLwRgv2e2JKbMu/fXrElafkXmwoW+CSPYOS1oU8hCX0JOV5VlEoav5FKC8OAgc8ZkQemcB+a+NUmLTuQDxtTOrilOQQ4QjZMLJfDhxCxpnt6VSku1sdY8qevt1XVrkdbKt3zKktrZNQV4C3gIbDjhc74SmLKu3zsDAmuR1sq3S39eMwOEPuXSCKxFWgvCSptklsbJ12sIgbVIyysaibCEnm0IbjelBgJrkZbAqLTfoMa+fY6OEViKtHRwketEw3K6koJyadAxcdY0fSnSomGpehGA8R0W8oC/+XAEshFYirTU1yErnz3zK9+cvK39yFw2eH7DOggsRVrbHdKAdkQfjkAxAkuTtthQv9ERMASctM6F7hBw0nbnMjfYSesc6A4BJ213LnODnbTOge4QcNJ25zI32EnrHOgOASdtdy5zg520zoHuEPgHmQtuTEnBl+UAAAAASUVORK5CYII=" data-latex="\int {xf(x)dx=}">
A:<img class="kfformula" src="data:image/png;base64,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" data-latex="{e}^{x}(x-1)+C">
B:<img class="kfformula" src="data:image/png;base64,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" data-latex="-{e}^{x}(x+1)+C">
C:<img class="kfformula" src="data:image/png;base64,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" data-latex="{e}^{x}(1-x)+C">
D:<img class="kfformula" src="data:image/png;base64,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" data-latex="{e}^{x}(x+1)+C">
若函数<img class="kfformula" src="data:image/png;base64,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" data-latex="f(x+\frac {1} {x})={x}^{2}+\frac {1} {{x}^{2}}">则f(x)=( )
A:<img class="kfformula" src="data:image/png;base64,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" data-latex="{x}^{2}">
B:<img class="kfformula" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGkAAAAuCAYAAAAr3zfuAAACuElEQVR4Xu2ZvU4VURSFPx4CpCRK5Qv4E2OBdmhhJ5HYmNiqscNaOoK2qIUGoh0xYKc2kqglFlSiD0BNjVnhTHIc74TL9cye2bBPN8PcM2vW2mv/HMaI1XsGxnqPMAASIjkIghApRHLAgAOI4aQQyQEDDiCGk0IkBww4gBhOCpEcMOAAYjgpRCrGwCowDVwAvgMXi+3sYCMPTloGPgIfEp8HwBow74DfIhA9iCQX5YI8AJ7B6Tl39CCSnPMQeJ6Fpe55wH5qnCTn5AJ14aSnwD5wHpgEPgOLRRQYYhOP0SgXKd09GuL7SjyyDiwBW2mzK8Br4DdwvcQLjtrDm0hqIqaAW0d9WKG/LwDbWdNSbXsPeAm8AO4XelfjNp5EUpqTQFYOEmn1piUncjddnAuRDhmoC3QbeNc2OYBSa9Nc9i3Nba0HeusvGECkcvrddP8ssJEaAwkxkT48L8yzaZDNmwelIYvCLbc01Z4TLVJeiCXAZmqxf6bcr8H1WtZiK5oHrS4CLMchXJ8smgfrD10B3tcKcf0EQdH7tecnCnKy2vI5i7TbhUh5N6Ta8tbqYwvVMKXrL8ATo5Tb+dSuaFRUlgqWatAdRY8bA1rtQfsoXe9ZtN7Vy0uRMwop+o3qj5bJUDgqyOx3asl3rBzUF5FUj8zSxn+KJMdrWXSVf0Ht0knV1F5PM2ouWp/ijylYk0Amo4ClSEoVl4BqQtf1nVo9Ukt+ObnrmDy29riC6UyDg1RTlQlaXZYi5dO7OqSrqY2tnKR7jw3P5YYhVt2n/k3yo+HhcQu8liIpNcykY5ZfwKt03HMT0LXWm+y0eRgS236maZCu3hsHrG0r4GV/Syd54aR3OEOk3knyL6AQKURywIADiOGkEMkBAw4ghpNCJAcMOIAYTgqRHDDgAGI4KURywIADiOEkByL9AV+eZi9rHhD+AAAAAElFTkSuQmCC" data-latex="{x}^{2}-2">
C:<img class="kfformula" src="data:image/png;base64,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" data-latex="{(x-1)}^{2}">
D:<img class="kfformula" src="data:image/png;base64,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" data-latex="{x}^{2}-1">
下列各等式中正确的是
A:<img class="kfformula" src="data:image/png;base64,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" data-latex="{^{lim}_{x\to 0}cosx=0}">
B:<img class="kfformula" src="data:image/png;base64,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" data-latex="{^{lim}_{x\to 0}sinx=0}">
C:<img class="kfformula" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAI4AAAA4CAYAAAArbsBgAAAEmElEQVR4Xu2bPcwNQRSG368lShGd0OkFCQ06P6FC6ITST0ujoUXrpyN0ROgQQUF0ChWiJEo/LXmSmWQyZu+9O3dn7s79zna7d2f27HuePXPOzNwV2WEKZCiwktHGmpgCMnAMgiwFDJws2ayRgWMMZClg4GTJZo0MHGMgSwEDJ0s2a2TgGANZChg4WbJZIwPHGMhSwMDJks0aGTjGQJYCBk6WbNaoNjhvJW2XdF7SDZO/XQVqg3NM0n3pv8XVc5KuJ663q+ySW14bnLuSTnQAAlQPllzvpXm92uD8lfRI0pGlUXCVvsgiwAnzm/2SjieiEEPXJpcLcf9aSesl7XRDXXi+o7LviJo/nD3vJZ2V9FjShcp2LPRxNcEBkifRMIUTTkoiEoW2kEQDRByhOCcX8k6K25UWE3vJ0Z4623jeJUlXFpCfnZJ0wEGMHXxY6HuntAj0XxOcay6ChM8ksnxPJMxcp+qKwQjPUyCW1ox3CKHleThvXeX87KKkbYkh/6EkouDV0kLUBOez+zrioYWvmIPIEx6IE37JceXF73x1W0qLlOjf23IvYXdpc3ZJei1pt6Q30cP8b8BMVCx21ASHaEFY/x3N4XCdPGdDdJ3hisODxte0MTgHRMJy3F8xsYKOseWws7t2JcjHtDfQIX5fdHvutC6mRW1weJ7Pa/xL+eEndR3QfNj14IXn9BcOH8WEch0TaT65XCIc6ol+xYcHZ8MzST8nVKZAzdC5r6QYNcEhQlB9vIvyAYAg5PukMwaq67yrv1y9fIVH+z+S1jhAwoiCrV/cAz64fILTmlGPiMKzz3S86E0XkYoO4TXByXVojXY+X6K0DnMDX93VsGHWZwDvrSngnC5d+Bg4kk/CybPifGUIcJgRZy4q5yBCx0OggZOj5MBtfEmfqo5w+NERznIbOANDkNMd+QBhPYw2lPis4G+WdDlR8uY8Z8g2Bs6Qamb25bd5kDP4g+T9W+l5kEx7aUZRQLltyfEcIs7blK8XJxQtXec1MmoP7L8m2Ey5zlH0nVZ7cjwt7A/h86GTYyYA6bOr3CYikeQzB1bsWHZw/Eo2ArIIGC9rTJtM8xN+Rafve3rXJ/SpZYVJv/V8zOTblxkcyuytASxA9DEqb0mEbyfWffxkIKvNtZcUZnEw77YnMRzxIbyoMYvdMjhMreP0rmjAMBTu/enansr1g8GMMI77KunVCCuqECrsZoWcWW4fUV/W2svdMjisUaWGHy9uaq9O7f07s0SPJu+pDc7Qu+cAoWsLgYFTEMma4JTYPeeTwXAV3SJOQWB81zXBmXX3nJ+U6/v68X+1LOL0VbDH/TXB8WYNuXuOvljRjle1eZaB0wOEvrcuApwhd89Ny3Fmqar6amb3l96zESk89O65aVUVcx2Hoq2nVTZyrwayakacoXfPMbWeGqJCv/ld/5Tt/E/L/gg4ENU1wRnIZOtmDAoYOGPwQoM2GDgNOm0MJhs4Y/BCgzYYOA06bQwmGzhj8EKDNhg4DTptDCYbOGPwQoM2GDgNOm0MJhs4Y/BCgzYYOA06bQwmGzhj8EKDNhg4DTptDCb/A2S+9TnDrCvvAAAAAElFTkSuQmCC" data-latex="{^{lim}_{x\to 0}{e}^{x}}=0">
D:<img class="kfformula" src="data:image/png;base64,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" data-latex="{^{lim}_{x\to 0}lnx=0}">
<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/shuxfxfs/20061001/41b0b9f8.JPG" />
A:A
B:B
C:C
D:D
<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/shuxfxfs/20061012/18130a22.JPG" />
A:A
B:B
C:C
D:D
函数<img class="kfformula" src="data:image/png;base64,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" data-latex="f(x)=\frac {1} {ln(x-2)}+\sqrt {5-x}">的定义域为___________.
A:(2,3)∪(3,5]
B:(2,3]∪(3,5]
C:[2,3]∪(3,5]
D:(2,3)∪(3,5)
极限<img class="kfformula" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAALQAAAA7CAYAAADSK6A/AAAFmklEQVR4Xu2cvc8OQRTF71uLUkQnqDRKVPREqBA6ah8tUdL6qOkIKiJ0/gCiolAhVCJqNTnJ3jeTyczOzO7M3WfH2UTw7Ozce8/8Zu7M7uxuCQ8q0JECWx3FwlCogBBoQtCVAgS6q+ZkMASaDHSlAIHuqjkZDIEmA10pQKC7ak4GQ6DJQFcKEOiumpPBEGgy0JUCBLqr5mQwBNqGgauDmfs25oqtwL9N9a0oGAJdJNekwidE5LKInJl0tc1FL0TkoYi8sTHXzgqBbqet1vxORI60NzPbwlr8HA2UQOdzgAY/LCLXCtLzORE5OzI6fxWR/fkuNC2JUfq5iDxraqVx5QQ6X2DA+VSkaIdiDBJMQ24NHcSqDeDLaSdc326q8+UrtWBJKzEXDLGa6ccicqEQ6L+R8gp6bgepMR0AsMgusBlbAMb8rSZi64qsgZ6StltrkFs/Gvtl4eIuBUjqvPqWWy4Vi9YDuENTi1p2Un40O28NdCxt47bRvcLRr5kokYrR2O78GT7vHX7D7ztEZJeIHHUWgSlAUudLgYa+J0Xks4gcFJGLQwXaGTHlQKfEEbrrkuuPtfbZ9qyBHkvbsVEjO5iGBTHnfe11OJ0G+CO3C0UKkNT5EqD9wWLKNCXXn4ZSz6vaGugpaXtehHWuvjuMxK5e+jDChcAHPwVI6nwJ0K62N0Tk1ITbhbn+1FG1QS1LAO2mbQBwPrDYGkvnWNSE0nsDebarxO213wFAAM5tZ+T2/58CJHRe60jF897zB3U9GaYb3ybefkv5m/Jp8fOWQIfSNqYgmOf5Qo6lc8y1rztzQ4sY4N9NEfnj3SGAnzj0wQnAf+SUSwGSOl86Qs/VItefxcGNOTBXgJLAYmn7V+D+biidw9ZYei/xpbSs2tUO6IIG0O94HQyxotPhbxzaAX27uQDllEMZLAj18TVsvy14nJ3ytVSzRcpbAh1L24AEh67IVQg/fft3QnD+ktGTNvj+SkSQ5t3bXT5ooXKhxRl+wx2RfUOdXwLxu0DkAA19MH2Dnzg+FsCM8lMWkYtAO2bUEuhY2sbvaIjdiXSOhxF7RtL7xok7OISR73vB4/JQHDlAz4lf1yyxTDKnbtNrrYGGvVDajv3up/Ox9G4qXKExxIzF7NTdbMhGOq0pNJ1V3G+TrIs2sZAl0GNpG6tzv8H9USknvW+ixr34pI/Op8SDaVDLDrntkyXQU4TgNVSgSAECHZfrWJGS/RX+Mcz9VxUZgY431/FVtWR9Z7GQxZ9VHQR6Vc1FZ1MKEOiUQjyvCnBRSBaogLUCHKGtFae9pgoQ6KbysnJrBdYMdDffknAaHU/ssE0V+zw+iMiVYW/G6h9JW4G9ZqCxRwIN729qstKuth338TieiuLAo353v3Vtm93VZw107RHI3zLpN5C+lKu/+y8XPBhGxJ/DHuYlO4duOYWvCjS2g+6cuFm/O1hzArIEusUIpC8NuJuWNG7/mxj6XQpAje2aeEfQ3T+Mug5Z7TkYaRzdJov9LUt2sBx+Nq6MJdC5I5A/quaK5n/RKLRDDRuksAcZhwuz2mi9qy0nFu142FK76q8Y5QRbu4wl0Op7zREIdWHhhD/+1swYnJrOQ7EvCTRi0cwBrdS/JX2qzVvz+pYAuuYINDaHDoGgUxQIixdJ/e/KLQkPYoFPOD4Ndznwb/89xuZQrNmAJdC1R6DUXQ7A6b6GpDBjqnFg+LCN+yUk/UgL560rJtoS6NojEObDoamG2xxYiOKTB3h1C7f43PL6YRYt738WYMXN+v+6bgn0/6syIzdTgECbSU1DFgoQaAuVacNMAQJtJjUNWShAoC1Upg0zBQi0mdQ0ZKEAgbZQmTbMFCDQZlLTkIUCBNpCZdowU4BAm0lNQxYKEGgLlWnDTAECbSY1DVkoQKAtVKYNMwX+AWu4MEu9tiS+AAAAAElFTkSuQmCC" data-latex="{^{lim}_{x\to \infty }\frac {ln(1+{e}^{x})} {x}}=">_________________
A:0
B:1
C:2
D:3
函数<img class="kfformula" src="data:image/png;base64,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" data-latex="y={x}^{2}+2x-3">的单调减少区间是( )
A:<img class="kfformula" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAJEAAAAvCAYAAADjGCgmAAAEGklEQVR4Xu2aP+wNQRDHP79ei+gEnUQjQoECjaBQIREKf6JCQkWjoSJBJURBJKhIEA2iUBAViQ7RotWTb3Ir7/e8vT97d3N73mz53t3s7MxnZ2dmbwEfboGWFlho+b6/7hbAIXIIWlvAIWptQhfgEDkDrS3gELU2oQtwiJyB1hZwiFqb0AU4RM5Aaws4RK1N6AKGgGgzsBM47+bv3AIXgefAm84llwi0hkgAnQH2Wi5yjuYK9r1iCZI1RPeAp8CDOXKs9VL3A7uBg1YTW0J0pFicR6H+vfuo2Ky3+58K07szLeyhRyELt6JotM8qbbCKRDqr7wCrTUy4eBLNvR44ANwCTHbnAOucnvILcNgiN7KC6BSwwfKcLiz6AvgKvALuA0fnCCLln++Ba30DbQWR2YJKDPZ7ziAy27hWEL3N4CjpAyJFuh197/RE+SpkjgGbEt+v/ZoVRHKg1VyxxfcBkTZH706q7c1/HzSxu5VjTRZTYeycINJRcxJYVej8ssjZYkl/qLbWAT+BX8CTGvmOid0dohbbHEiJRMoP1xTQCIblgK4rNATThamK6iawHbg0VRQIxLXA8Yo8sHcf9z5BsUCTHTGCSBRruIYWiCKTqslQmqu3phFr0Ao+PR+LYCZ2d4hsI5Gi0I1I72YSpMfA6+LIq+r1KFLFotF/BVHdxpdC9NVEv+q+6Jlxid/0OCtzuFTfVVxXhGWoQVp1z6hoNOuLCEF52SLxt4pEKoXV7BuyW5yaWOtIWRGBcyPwLvKf8p3p8r8KIoma3EinayTPMZk6OgVh7y0IK4i0UFUVQ35DlApRWWDsOhJpLlVi2nBhVEXYGESKUEsrEu/EoL/4NSuITC8EI5bJASLlRGWfaIS86Dqwp6jKJhPt6aXp+RMRmWYX3lYQafHKi4a4gA2Gj0EkvVQVbUm4rGwaiXTEaK5YRJ6sxmIV2yRIZZ98mNnbEiKF3W9Fv6OTMNpQSAwi/a4hx6oX02Q0hUiyZYdPU7mO4DpX9IkmKy2BpL6R+kRBx+/AkiLf+RyJQpK10uIok1KWEJlVCxMUBGOq06skWEOfg2gEZ+mo1diWYPQUiDSXkmcdV4JBecvHim+tQpIcYNIRpyMvdkMvvc4mRNYmG+jvs5YQBeMtGzjBnmUoAb7VKBIlOarBS0qof9So6hqILH/UGqIQzvV9T1X/o7NF1hCkiPWhos80S4xykpw+91VUTYmoNUwUf2QIiAJIZXc+rRbV8GVFoUMJR1nDaUwer9OH6lyRoSDqfCEtBMrwd63yhxZ6ZvuqQ5Sta8ajmEM0Hl9lq6lDlK1rxqOYQzQeX2WrqUOUrWvGo5hDNB5fZaupQ5Sta8ajmEM0Hl9lq6lDlK1rxqOYQzQeX2WrqUOUrWvGo5hDNB5fZavpH2MxxTBbFVC4AAAAAElFTkSuQmCC" data-latex="(-1,+\infty )">
B: (-1,0)
C:<img class="kfformula" src="data:image/png;base64,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" data-latex="(0,+\infty )">
D:<img class="kfformula" src="data:image/png;base64,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" data-latex="(-\infty ,-1)">
设<img class="kfformula" src="data:image/png;base64,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" data-latex="x\to 0">时,<img class="kfformula" src="data:image/png;base64,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" data-latex="x+{x}^{2}与ln(1+{x}^{k})">是等价无穷小,则k=
A:1
B:2
C:3
D:0
曲线<img class="kfformula" src="data:image/png;base64,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" data-latex="y={x}^{3}">的拐点坐标是( )
A:(0,0)
B:(0,1)
C:(1,0)
D:(1,1)
<img class="kfformula" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGAAAAAxCAYAAAAlSqxqAAADVUlEQVR4Xu2Zu88NQRjGf1qJklr4G4SCRjSChAqJRCGURKhoNFQErUshIagkQjQoREF0akQplEJLnmSHydrZnTk7lyPn3e6bb+a9PM97mzlrsK8pAmuaajflGAGNg8AIMAIaI9BYvWWAEdAYgcbqLQOMgMYINFZvGWAENEagsXrLACOgMQKN1bfIgO3AbuB8Jd8vAs+A15X0JampTYDAPwMcSLJy3man88oyklCbgLvAE+DBPEyTTx8C9gJHBk5+BN4PBEVoPVn52IGaBBzrQKgZ/b7vjzryb3uLe7q1m8CJiPWs4EtYTQIEwMOM0a9s+gasB94BJ4HHwOkASsqCg71IPweoR+zolafQ+n9LgOrwHWBzJg8E/n3gKfCrk6mmLjDHgkpl5agHtoJCJPrRL3Gh9Uzm/xVTKwNOAVsCNXgRp656ke4IUI1fN5FhIk7Zcr1T2ifE2RJaX8TW0TO1COg7nssREXsNuBdJbj8Q9Lcjw7cptJ7L7j9yahHwBlCj8xtgDmdUKvYDhyN7iwaB48C2HMpzyKhFgMpEii5NJwJV309gbW98VYR+6Nb8YULN89IEMKm25MA5KCMFlDmGpDgtEBWpmmrUZN2nLHKRK3mfun9ohldd1/cjUFJ821NsmeNz1NllI8CNf0MlxScgyrnAJiMgAIy7FA011KEZflESjIAAcje6BulHv0rRVmATcCHTW85KEhAzV6vECGxNS+57C3zp9YJFI1/ndCG8vIpT0PPu5jo2hioyXwC75iA8cVYZpQwrqSPJ/FpNWOVFV/6x3wBEQP9RLMmZiM16qtDbUf/pIeJomS21CIhposqS7yO/FbjZ3x9NU1HJ/SCYqv+f/bUIkGL1gbHHOJWHWwMvk+5SluN3hCkbZgOaKqAmASpDnyduqoryfd4lS/7ozKsME5DuGBuXqfzIuZoEtJ5ANGWdzUBkapCP7q9JgAxRhG+o+IO8c17N92vEM0VWcGOE1SZANqkUvYx8vYzxYWqPBoCdy1Z6nNEtCHAk1BoFRXgtXVPB0HQKSjZuFQ60yoBVwDbKRyMgCqZym4yActhGSTYComAqt8kIKIdtlGQjIAqmcpuMgHLYRkk2AqJgKrfJCCiHbZRkIyAKpnKbjIBy2EZJ/g1dH5IyCORlSQAAAABJRU5ErkJggg==" data-latex="({e}^{x})''">=( )
A:<img class="kfformula" src="data:image/png;base64,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" data-latex="{e}^{x}+c">
B:<img class="kfformula" src="data:image/png;base64,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" data-latex="x{e}^{x}">
C:<img class="kfformula" src="data:image/png;base64,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" data-latex="{e}^{x}+x">
D:<img class="kfformula" src="data:image/png;base64,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" data-latex="{e}^{x}">
下列等式中正确的是()
A:<img class="kfformula" src="data:image/png;base64,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" data-latex="\int {sinxdx=-cosx+C}">
B:<img class="kfformula" src="data:image/png;base64,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" data-latex="\int {(-4){x}^{-3}dx={x}^{-4}}+C">
C:<img class="kfformula" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAMwAAAA+CAYAAABnePTgAAAG6klEQVR4Xu1dOahkRRQ9k4qgiVvkGhlpIC64ayLumYMiigtGLpgpogYaKWomLqCiaOY2Zq4oqBi4xG6ZiIGK5sqBulAUr/vXfa9vVXX3efCZP9P16t06dc+tu72eQ9AlBIRANQKHqkdqoBAQAhBhpARCwIGACOMAS0OFgAgjHRACDgREGAdYGioERBjpgBBwICDCOMDSUCEgwkgHhIADARHGAZaGCgERRjogBBwIiDAOsDRUCIgw0gEh4EBgZMKcBeBXAH851qOhQiAUgVEJ8wqAYxNZ+PunoShociFQicCIhHkMwG0ALgXwLYB3098rl6RhQiAOgREJQxeMpOHJwp930p9xKGhmIVCJwGiEuQHA2wBOTfFL5TI0TAi0QWA0wvBEoSt2Spvl6ylCwIfAaIShO0YXjDGMLiEwHAIjEYZpZAb5DwB4djik9kOgqwFcCeAPAMcBuA7AvQA+2I/lH7zKkQhzP4BnAFwWmEZ+HcAZAM4F8DWA8w6GaK9GEJ9bshU/BOAJQK+yGyYjEYau2PWBm0MyfphZy/8AvFEoyF6xY2KxxISG67nsM/7bSHrSdY9GAoLxCyv7dM0irtJ63pdcv1oMOP5wOp1+BnB6hJCd5+Qac7KMcMJcCOBiAJcDODrh8y+AfwC8lBnAOwCcBuDhSAxrlSVSBs5t8QuLlEwtR1ybsp4/AfgBwI0RQg40J8lCJewZw9AdpBwvpgJ2HkuRSA8C+AYADdibyaC9FYnhKISx+OXxVLSMWHNpPb0nDGXiJn0O4MloSxYBQOWcNyVLzeHndDIMxPmplHjgibGOBPQcbk5rC9fn8AdUbpLFL7Ta/L3FxROH2Thm5WovIxlds1BLVitQ8Liv0vwtkyMky6uJtBcB+OKANZoR+yhl+EIhGYUwjF1ObljhZwKAxVGvW2XWbBTcNq0cm4xhmGBhitp78b4rnO4ViU3ChMYvXMgIG0/F/aXVkQqASsFnek4W23TGL5R1jiJ4FafH+DLOWxL0U4m9J5PFLN7sJZ9FbyH81B+BMNY/9llqi4lUlJIs9NdXgcyx16aA8qgUVB5ZE7/QNbg1Cc9szfsp48R5jk/ZtY/T/ZFrzOf2ylRmEqmILGDOyQh6CWOuFeW/xlksJdHCT5dRThh2Jj+alIvBf+3lVQZWsVm0LNOmDODLi4pzYnaSWBDKgueq+IVNo08nn5vPIrm4nh/T5pur0dJIeWWi3I9kYMwlC6fwEsZOsyaxSK2SleNabt4qGfly2CUzWmK8ykB3Y+oqMbCNKwPOdfHLCxNpz7IwSnfuy4lCKU85j6HI1/DemhNriUxz9Sm/z0sYMyg8KaaM2CZkWjzHCIRhwfIYZ0tMlDKYWzDlQ6/LGFGeu7PdIAma1AXWaEBvmbyEMYM2dAayN2HmBvxRymBB59SmcUNZQMuJsUpfbZ7e+ObytZZpLmE8mNGFbNoY6hFu8XE2MYEF/N8vbInZlDJwkxmnlLiw4s02jDsBvFwBBN0LXiNl0yJkolt80go8rMF16mO2tpTY2Anj0ckySVGxNcuGeIRb9qTpuy3gZ6FqyTswm1IGbtpUFzNPtLscaXjOM5ov3lom7wljxqqmWEltohE7oXW805swVuG/feF7+5tShlVuVx6/MM65ak0a006jMjVaupFmQqKC/txEeWXahHH0EsaSLTWGhntwT49O896EsQr/2QC+m7lLm1QGZrKY1szjFEsRW/zCusrvWf2GbsH5Wa1iKpvGOS5oVSsAMIJMXsJw+4k/a1jrThlrurQU/ky1mXdbb8LQov+dvoOsdgWRykArx7cMrUJtp4l1zJJIpd+cu3HWis6Yyk4Y22BvG04tHlPjRpBpDmGsj4xrmmq65D6cCeD5ih6zJfitvLcnYfhlF58A8Fb4o5WBrhMLdnxNlz/cOLpNDPjZRs5qfd4dwE3kuxqMffg5kwJ5lwDBf63xBo8g0xzCmKKa4bLEwW/pAxaDa5IuIWThpD0JM7elfwRlCNuQHZp4CWGGhaEnYdgsR0sc+Q7/sMDvgWBMObd0Q5tA2pMw1hLTU4YmIOshu4NAT2VlSwwzY4xldAmBrUCgF2GsJYadw3MbD7cCYAm5Wwj0Ioy1xCh+2S192vnV9CKMBfy9nr/zG6sFxiDQS2EZu7DKH/WVSjFoada9R6AHYfg/i/0JYGn/2N5vngBoj0ArwliRkj1j/NI+umQkji4hsFUItCQM2/fpgrH+Yv/D2FaBJWGFQCvCEGk7VRi7kDC6hMDWIdCSMFsHjgQWAiUCIox0Qgg4EBBhHGBpqBAQYaQDQsCBgAjjAEtDhYAIIx0QAg4ERBgHWBoqBEQY6YAQcCAgwjjA0lAhIMJIB4SAA4H/AfI/dk5454eUAAAAAElFTkSuQmCC" data-latex="\int {{x}^{2}}dx={x}^{3}+C">
D:<img class="kfformula" src="data:image/png;base64,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" data-latex="\int {{3}^{x}}dx={3}^{x}+C">
极限<img class="kfformula" src="data:image/png;base64,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" data-latex="{^{lim}_{x\to 0}\frac {{x}^{2}sin\frac {1} {x}} {sinx}}=">_____________
A:1
B:2
C:0
D:不存在
设<img class="kfformula" src="data:image/png;base64,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" data-latex="f(x)=\frac {{a}^{x}+{a}^{-x}} {2}">则函数的图形关于_________对称
A:y=x
B:x轴
C:y轴
D:坐标原点
下列函数中为奇函数的是
A:<img class="kfformula" src="data:image/png;base64,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" data-latex="2{x}^{2}+3x">
B:<img class="kfformula" src="data:image/png;base64,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" data-latex="ln(1+{x}^{2})">
C: x+sinx
D: lnx
<img class="kfformula" src="data:image/png;base64,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" data-latex="y=\sqrt {1-{x}^{2}}">的奇偶性
A:奇函数
B:偶函数
C:非奇非偶函数
D:既是奇函数又是偶函数
函数y=lnsinx的导数为( )
A:sinx
B:cosx
C:tanx
D:ctanx
设F(x)是f(x)的一个原函数,则等式( )成立。
A:<img class="kfformula" src="data:image/png;base64,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" data-latex="\frac {d} {dx}(\int {f(x)dx})=F(x)">
B:<img class="kfformula" src="data:image/png;base64,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" data-latex="\int {{F}^{'}}(x)dx=f(x)+c">
C:<img class="kfformula" src="data:image/png;base64,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" data-latex="\int {{F}^{'}}(x)dx=F(x)">
D:<img class="kfformula" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAPAAAAA8CAYAAABYfzddAAAIxUlEQVR4Xu1dOcx2QxR+/lYiKIjO1ikshVhipxF7hRBLLKUlVERQUBG0llhCUNmjsYYEUVhqayUoUKjJ45/z/2Pc5Zy5c987c++ZRPL93pm5zzxnnnfmnDlz3z3w4gw4A80ysKdZ5A7cGXAG4AL2SeAMNMyAC7hh4zl0Z8AF7HPAGWiYARdww8Zz6M6AC9jngDPQMAMu4IaN59CdARewzwFnoGEGXMANG8+hOwMuYJ8DzkDDDLiA/2u8EwA8C+BHAPcD+Kph2zr0DTDgAt5v5CMBfAngcgCXATgLwIkbmAM+xIYZcAHvNx5XXq7A/E9WXv7txRmolgEX8F7THAzgBwAPAHisWms5MGcgYaBGAV8J4KWAc1f4uGV+NWyZ3e91mTTDwK4EYiXkBQBXAzu7LcXtM0XMldiLM9AMA7UK+DsA34SAkoXM0wFcAOAeS6MQdWbk+WxjO2v1XHzpcx4E8A6AT6wAZqhfE5ac4TVtk1oF/DeA2wE8brAIDXFnhugZqGL0mf4vj47mKrn4uvBIX49UIOKasFht17xNahHwhQBuAvAFgEODeK3YuO1+C8DLRiteD+CZIPzXjG0t1XPx9T2DsYKLAFxjATFT3ZqwWIbYvE2sIrGQo61L8VJ4nIxvA8jxf28M7XmGay30f68DcFTYSlvbs/4T4Yvnt9DHQ0knU/AN4WHgjdw9bQB9G4CrAJwM4HsAxxjalsZS6NGd3bRkk2weahDwZ2Hyy0Tiv382boU5kV/JWH1JHH3fIyYEzOgDcgUifuJgMCzldQq+IePyuVcYuZL+cuMMQzuCXCzZE7inYas2MfNQg4Dp7zLoJKuW1f+lH/Nc5krC7Cue/340IYBFvE8CuAVAlyim4NMYlM/kDsIS0CKmjwPn1oDfEKYcLJoxWuu0aBPrGP+tX4uAZftMTCSfuLjV0wSxWO+kTF9Q/F9+AfBva5Ez66GA2xR8Gjx0ORg70HAl/RETE1a4lbbGDIYw5WDRjNFSp1WbWMa4r24tAhYcsf/LvzUBmimThpOYk/mOzAwsbtXujvz3LiNMwacxas4XRE6cYS4smn4tdVq1iWWMVQmYAjgWAANAnwOgAd4A8G4Iao0NjD4zt7CWQI70yayr4wGcA+DDsQd1fN7n88ZVp+DTQGKA7GYAp2gqhzrc6tJ1ON/QRlM1B4umX0udVm1iGWNVAs4CHjWSLXdOP2zLcgiAPzI6oDhZhsSjwUef9NrQ19EA3gxbYq6uh4WI8ftRnCCFOvQM9nFxiDgfENJUGblmzKHL/50TSwbF5iYt2MQ8qL4GNWyhpw5GI5CuZzDr6gMAPwFgMEtbeOx1b6jMoxgW7hxYuCVPfUoNPq4akpQhx2r0q78NuxDuRs4biFn0PYNb5cOjlZbifDh8IfT5v3Nh0fKbU68lm+SMr7fNlgVMgTw6IQItwZI4gt5F9JiAeV75euIusM2LUQyAW95PB2ICXc+ga0J35IwkQj3k/86FhbyQL3KeU+hSpWfrXf3UbpOcsQ+22bKAJYEjN4VSBDIWydUImEdQUmQSjvUbGzZ9hhwTxV8CUn9oi0kBl8ZSfNIOdFizTWbhYRcC5lZ1jksCkrc8JpA+4iSAxeytnBRKbSTXik+iqBbbpM+QPrq+BOIz0rFJVQLL2DNKfl6zTUqOc19flkkyC4ACneYmD0gAKzeFUhMs4fCs+OjvsmgjxOLXxoE0YqN/ntqXUeKnQt65JmpfAksBE6u7qNkm6kFYKq5BwJxkfAGAZkIKNxLA+nPCHeDUT+3j3YovzUwbsydFyZU2Fjz7YGAtjY5zi8wjJ63dS2AZw1/y85ptUnKc1azAJd6+wUnJM2RLSqAEsBg8Yu6ytWiDJezXgk9WyDgzTfqIfdMYL7e5vMEVf963TY5XqLF7sKWwCNa5g1i128Q6x1T1td/Eqs4yK2n9lr7ucxL6JQNr7gAWMQ/h49hPjfK4u7jgEclpA19QXRcluG1/LxG1HE9J3jbPh3+Jjr3mwpI5LczNtAGspWxiHpCmQQ0CLnErhn1YrsUx64qvjc3NwLJ+6fThi7e6XBHPDEc/sgJrLpx39c3JfEm0hZbVlv9fBJymqs6FRTMPS9Sp3SYlxvi/PmoQsPX2URcR3KbyWqDmrJDtmXV1kMEXTJ+pDZZIuz58FNS5wV/l3Vz68XHmFNs/P3DTiO2ZhNK1vY7vw4qLwd0AX5zAZzGzK046mRPLLJM36bQFmxTnYQkBa96+wW9TTjr6drxpc2vIj+alg67SFYntI0uuEH4d3gGdQ6rlKIb9W/BZ8HDS3mW8Smjp31J3aSybtMmuBax5+wbFy6gy384hRz0MUDFYM4RX8obHglkSgeb1u5zMoJxECwpBi08rGvLxq/EaobZva72lsWzWJrsWsObtG0xvlJVWBEyf8EDF3VVuG9OtYToZmQByn/EdWAwUHRf8bE5W5iVbbv/EW+kxfBrxcMJy690Xmdb0UarOUljcJhN8wFzjp+eKQ/6vXDrvSgccen6aDpjWZdbVpcYbSMTJqC7PWhk04iqfexF+DJ+G2xJ9aJ6jqbMUFrfJQgLWvn1D7nVacoI1Ey7nd48kWESfnBFsy9svNJi8jp0Bt8lCAh57+wZXXl6j451VFqlPg2mjzH3Tgb+88HsQYI7/a59m3sIZmJGBXfvAmrdvcGvEYw4W/joDo9AsfxVY+SSAlXuBYUZTeNfOgJ2BXQvYjrBsCwlg5b6Boywa780ZmMjA1gRM/5VJHDn5zxOp9ubOQHkG1i5gJm3wZ1MYdKJ46f/69rn8PPIeF2Jg7QIWn/eGkHI418sFFjKfP3brDKxdwLQvz33564Ncefnydv8B763P+hWNfwsCprn4E6Iu3BVNXB/KXga2ImC3tzOwSgZcwKs0qw9qKwy4gLdiaR/nKhlwAa/SrD6orTDgAt6KpX2cq2TABbxKs/qgtsKAC3grlvZxrpIBF/AqzeqD2goDLuCtWNrHuUoGXMCrNKsPaisM/APW/G5bJ93l1wAAAABJRU5ErkJggg==" data-latex="\frac {d} {dx}(\int {f(x)dx})=f(x)">
已知f(x)的定义域是[0,3a],则f(x+a)+f(x-a)的定义域是( )
A:[a,3a]
B:[a,2a]
C:[-a,4a]
D:[0,2a]
设函数<img class="kfformula" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAJAAAAAxCAYAAAA1BiDzAAAE/klEQVR4Xu2bPcwOWRTH/1qJklpQbyc%2BYhVLs0FiK4RQCCU2VGQTDRVByyoIQSW%2BomEjItkV3dZLlEK5We3KjzlxXfPMe2fuzJ153pwp32fO/Tjnd8/933PnXSJ/3AMZHliSYeum7gE5QA5BlgccoCz3ubED5AxkecABynKfGztAzkCWBxygLPe5sQPkDGR5wAHKcp8bO0DOQJYHHKAs97mxA%2BQMZHlgngDaJOlnSaeyZvzF%2BIykx5Je9NDW0E3ckLRG0jpJLyWtH7rDNu3PC0DAc1zSL20m1/CutXd%2B4hBdkPRE0qNqLv9LuilpX09%2ByG5mXgBiFT6UdDt7xl8b2C1p%2B5SCUTM35h3CclTSRWk6l%2BBTAeiypOWSPkh6K%2Bls4MyDVaD7yj5hnO5WYF7tEcw%2BmyLjHJN0KWiUv00lbpMYCHqEbLBaEgHdGTmIv93pOftYPOh3V49bY5/w0BYZJ4SnLgORpVh4LMBXko5Iui/p174HU9feFEhmRV2RdFjSa0l/BwFFq1yr4BrKH/R5YOJayOaOr9jCDA7guVVpJH7j4ZDBoiwS2yKdNESeDIAD4jRtJqy4tQPrFILAyg1X%2BlCw5rSLoF4ZZUv%2BZjAZQOi6ZQNl7O/GPzZArJSTlcaxk0Y4yBLBLQFpDji2lQHPrG3JtrbiJ7SxAarTPKGz/6q2tyFFLiL90NTqK4ETgCOEh6wdn0bNj3tKZR4b39gAAQjPrOJY6okDrbS/amuVpAfVloTzV1RFuD%2Bi010Iamo/uZkktt8miaDzfJS0NCpX8DtFxHB7JWPbKZX5/VPZ0IbFM3yn7zF/094YAOGU36pRUF3locLKg0AMV1dqYFmBVhSkfWpG6Cqcy9ZIMW5Lg7BM7afPYBBksh%2BnpnD7ZlHZgjJdE/drceP3N9WPHD7Qcjz/ldJ0YwBkzjABzakhrPu0zQzUkO5FQYgrtpy0/mwQ47MAYoyA2OXhKD1rXsCD/qvbckKAuvRb1GZMgJqcaE5IyQwARAkgBrONHkjpp6/AWIasE7xTr0t954MxAeKEtXeBekWXwNrJrs3cuvTTFSiAR7SHgLOVsZ2j307PSU3q8/zbOLmrw2bZLSSgsetS5EPv8GxNHDAC/FzBUxjzBhaKp/agAd9F23Di8Md9bUyAUm6WgYFCY5tjPO026arY46x%2BskEqcLkRY3xPC/aXO95G%2B7EAShHQDJx0zz1P6jdAwPB7TWEy1kmhU9jyuEcKdVSop/oW0eHVzaDBLdH4WAClCGjmv5CoREdtCO7K6nQVonVjA4RDXtbWxZCs%2Bm/DBa7Vduoq8yWYaNXHWAClCGibCDqIm/q6h9VsX%2BmhZTZXx2PugwhAyodoTe23cmbiy5Ylf4zEshUV%2B/7uKXFY3V4bC6AUAW0zYvuJvxGy38hkP1UQUVBDK7GCdwQFtusNpxrsuSao2766eTTNKh4jVszx%2BTydwBj0WAC10QFDnpIA%2BcS8BS2N0TJvjQGQCeg2hT6700oV0yneQzy/L1XyTxnQPL5TCiCE6g%2BVliFw3Eu1/e8CtjIuRPv4LhqI2fpKb13zyMgkjvFh7QPRSibpAkLTcbxNcPpqp02fi/LdUhnIxCr1lme%2BbSwelkoBtHg85jP5xgMOkAOR5QEHKMt9buwAOQNZHnCAstznxg6QM5DlAQcoy31u7AA5A1kecICy3OfGDpAzkOUBByjLfW78CQTe6jKzb9QUAAAAAElFTkSuQmCC" data-latex="f(x)={e}^{2x}">,则不定积分<img class="kfformula" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAMEAAAA8CAYAAADfTt5bAAAHy0lEQVR4Xu2dOcyvQxTGn9tKJBRER1BfFGKJ9V6N2CuEWGIpLaFyIyioCFpLLCGo7NFYQ4IoLLW1REGjJr9kzpcxed//OzPv%2BmXO20i%2BO3Nm5pnzzJxn5szfAfnnCDSOwIHGx%2B/DdwTkJHAnaB4BJ0HzLuAAOAncB5pHwEnQvAs4AE4C94HmEXASNO8CDoCTwH2geQScBM27gAPgJHAfaB6BrZLgFkn3SPpO0sOSfm1%2BphyA2RDYIgmulvSipNMlvSDp%2B0CI2UBww20jsEUSsPp/KumpsBNACHYF/xyBWRDYGglY/b%2BVdEYgwCyDdqOOQIzA1kjA6o8eOManyRFYCoGtkQABTDiELvDPEVgEgS2R4CRJv0h6JJwIzQnAeZIulXRkZCOPSvpA0hcj7eyX6lPh1jfeVfDcEgkIgzgNujgI47kcg4m8T9I1EzRgtp5ogAhT4tYH/Sp4bokEnALdLOlYSX9P4KB9Jl6R9J6k13sK8O9/SjpO0jeS7pL0jqR7e8pfJ%2BlySTfO2OctmB7Cbao%2BLo7nlkhgF2KERbXfM8F5cWLsPZYYui04bN8uwES/Jul9Sf%2BGuoRMbNO7sHozEOv5zI7fLel6SWdJ%2BlnSKZn11io2hNvU/SrFc1T7WyGB6YHPJF1UOSIclVUEhwJExHU6Pv7%2Bxo5d4MloxTcSsMofvaMO3aXdaytCrJ8k/VBRrxKi6mpDuFUb3rG71uBZ1Y%2BtkMD0wBhRjNM%2BK%2BlOSV3ORbz5Uuaqy0rNce2rBWEObRLO5Ypk%2BvN52K3GCvSqyc%2BsVIJbpsmsYqV4ZhntKrQVEpgeuDWkTJQOiJWYMIab5ad7KuPYZ2Y6te0khCx92iFthlAKDdHXflreiFbSRikuU5QvwW2K9sxGKZ7VbW%2BFBNwNnDbipphQ6IEQ7xPPd305oDLhP4b4HhuGD7ZTfdHl1Lkkoy79uWFAa1RP7IQVc3CbsLk9U4uRbwsk4Hb4rzD02v70aYB4cr4K4dIu8UpIhVDlI1ZnZef7J2OFRzzeIensTI9gu%2Bde5JLM8msVy8Ftjr6V4lndh1qnq26woyJC%2BJOQLUruUM3HRPHtckAcfO7x9rXBqnZFINhRIXTjmJbdpU8PEIvfFMZ1sqR3AxGxdXw4Wfo4Y4eqwTOuswRufX1cpO25nSJnAngv8FAQrQjk3O8ySQ%2BGwhw18n0d/ouoTWP5JQDtaoNw4oRoxce5Hw9OvEsPsLvZJRxjhTRoHsI1Qr4PJR1ekdi58zSm3BJzNvvKmAPAW5KuGpEuYaKYFXVX3L4EoGkbaAn0yvnJqdGQHuC%2B4%2B3g7IYhtuPTKsKpLzuEPnjUpp5zKZhiuARuze8EXGqdOCJdwhxt6JRlicmM27Aj0K5j1qHwDRJw1GufEX1ojDmLTmmZJXBrmgSxKK5NlxhaVeOVtCv846KuJAzDHke6XU8%2BY4exE6sux43vNHKc0mytEb46CXJmaEQZE8W/SapNlxhaVa17c1%2B%2BWKxv4px%2BoVVSx%2BXU4zlJt0vKTbMg/udb4yRpbtz63CfFc4Sb7a66xsoS98hEMfFv7RuCNFbuGzGOxIVaruOVgo5zs%2Bqbo9IvhHp6YkWow1FqCfbYGtI8pf3NLT83bn39SPHM7W9xuZKJKDaeUcFuisnQ5ESn9MsVxdjF%2BUisy0lRIMQ6NazkXY7c1U9CFjJPLZbvC3ninSsnP992DnKY4ovAVDdYn6YWxiW4lc7frvIpnlPa/p%2BttUlgN8W1bwhyRTGDzk1yI4mO1c8cLnenSZPMCCM%2BSgSuHXVajhNn/r8nx7kQ8Jwox6lL82Dn3ExCj3WeXNzGtpPWXyxpb20SWKZmbT9yRbEBjGMOpS1jM34bYDk%2BQ31MbUPQK6NwyFZ9/m4kSNuin3EYRZ0LwjGr7QRLPG5JHTIHt6lJsFibQxM79cBie/bLEmPSp3NFsbXL1t71ziDuF06YJuINnZDg2Aj7%2BFjTQjBCJMIwC8VYWRHFpGdw45te6mHrUNATlEHDxDfO2H25IFt1ijnMwW2KdsxGH55TtrFna00SWPo0WZe1lzulR405Jw44XJwJmrMTQMb7F3bMWRyix2gOblP2Z1E81ySBnQzxyotb49Kv9gLJcm9yBLKFJ4j2vueVCLg/MhLsSse3tfKluNX2f3E81yQBvzJ3YeGbYsTSwRDXAxa5M7lZm/GksL13hSLpxCGSCXP6nmNCREKXNAyqdYCt18vFrXYcq%2BC5JgmIzXlQX5I5SvjDiQtn8QgnVvPcRy/pxPQdMVo5Vj4I0LcDWMzfCgFiXTXXmIfmpJZcO%2ButRQJLl%2BC5Y0nKggkmxCY7Se4rrlLwUgKwQtWSrbRtL78wAmuRwNIlap9TzgkTZ/BclMUEy3lZNmef3PaMCKxFAhPFtUlzM0Ky91MraRtrYTXnWN12Yf7KlIARyhASleiBKdt3W47AHgJrrW4I3Np8IZ8%2BR2BSBJYiARmiiE00AKs/R51bDIUmBdeN7Q8EliIBGoBbYQQxF0%2BEQ/zNP0dgdQSWIgHn7Tg/PzHC/4WGnWHOH91dHVjvwP5BYCkSGCKEQqRP%2B%2BcIbAaBpUmwmYF7RxwBQ8BJ4L7QPAJOguZdwAFwErgPNI%2BAk6B5F3AAnATuA80j4CRo3gUcACeB%2B0DzCDgJmncBB8BJ4D7QPAL/AWlHjkwuurRVAAAAAElFTkSuQmCC" data-latex="\int {f(\frac {x} {2})}dx=(\, \, \, \, )">
A:<img class="kfformula" src="data:image/png;base64,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" data-latex="2{e}^{x}+C">
B:<img class="kfformula" src="data:image/png;base64,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" data-latex="{e}^{x}+C">
C:<img class="kfformula" src="data:image/png;base64,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" data-latex="2{e}^{2x}+C">
D:<img class="kfformula" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAHcAAAAuCAYAAAASuIa1AAADsklEQVR4Xu2ava8OQRSHn9sKpYhOROUfoECBzkeoEDohKh/R0WioCDrxUUgInZCro0FBdGpER6L00ZJfMnMz2ez7vju7szNzN2erm3dnZ875PXPOnJm5S9gzWQWWJuuZOYbBnfAkMLgGd8IKTNg1i1yDO2EFJuyaRa7BnbACE3bNItfgTliBCbtmkWtwiyjwCNgCbAM+ANuLWLGKB601cm8Cr4CXTtt/wGPgxCrWOrvptcJV1IYgzwG3wM7CY2ZIrXAVqeeB24Ez+q1We0PNdwC7gN3AWvfiN/ALuB9ko5PAZuByDLCYtrWKpUgNwbZFrqL7J7Ae+AicBV4AF2IESNz2KnAJuAc8D0BqGEG/6Gz9CjwBjgFPE9uw0l2tcJv+KmqVlj04gZU4WpP1To8iQOKW8EngrruJJjvmAZPtx53No9o6aueJZqSKq03A4aA//eZBe7j7gXVjRsIMfwT2oUuxO4F3C/xW+7fAa2BvIo1au6kdrtKxwM5KtT5dp6ikVZ33EVvf7YlMse8d3NHWW9GuGW4T7NGWqHwGHIoUdlawSPDYvbRfY2Mnl8bSMjPaelsS7j4HRDb8BdYAy4Gzeq8DjLCoUqFyzZER+M/um9CPsE1sxouF69OrxtGS4PfkXcbVpBg1akvBFQBtA1TdhoKE4vp1tCmUzzR6r4pTzydXgervP40J0UVo3yYWrvwQpNHXzhgnwra507IXpG0LECtuX59TpWW/1ioCfUZJbdOg/nLCVapV6m1bn7SeHmlUxIMc6/Fx7OTy2WXUvWoPP1Y+yQn3LnCqUfwoPetiQCc1VzpsI4b4uujbvnBjNNQEj1mbF9k8932MYYMGAiSeQOr0xj+67fmR0WFV1xtnOOJvn9pe6/iwuU3ykRujYfPMfKim1cCVGNUWH27yxWyF/GTtcnAhCMpSG3KuzzGzbugsE1xF7emhHY30fWxa9sVhl4JK26Yzua8sc8JVdambkfAYMeTk967Z1qTGJImFq8+/dDh29BcGN3LXFDnhKi3pyquZxvyBRniIMVJwzu22D1x/rqyO2y4MFN1bgTu5wcqgnHA1nqLzQHAAod++AW9KOJ8gcn0Xgngw+Jeg7+6FJuyDEjO1BNxSfnYZt0/kdum3WJvckVvM0Q4Da5s0qx7o8Hl9TQxufUySWWRwk0lZX0cGtz4mySwyuMmkrK8jg1sfk2QWGdxkUtbXkcGtj0kyiwxuMinr68jg1sckmUUGN5mU9XVkcOtjkswig5tMyvo6+g91zJwvLUzHNwAAAABJRU5ErkJggg==" data-latex="{e}^{2x}+C">
<img class="kfformula" src="data:image/png;base64,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" data-latex="{^{lim}_{x\to 0}\frac {\int ^{0}_{x} {co{s}^{2}tdt}} {x}=(\, \, \, \, \, \, )}">
A:0
B:1
C:-1
D:<img class="kfformula" src="data:image/png;base64,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" data-latex="\infty ">
若<img class="kfformula" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAU4AAAA5CAYAAABZA8KkAAAJjUlEQVR4Xu2dO%2BwGwxrGXzVK5HRCTyU4QYFGkBwVQihcSpdQEYmGiqB1KAhB5XZONIiEuERFjShdajX5xb7Jmv/uzszOzH57eTb5F//vm3ln5plnnp1535n5zjE9QkAICAEhkIXAOVmplVgICAEhIARMwikSCAEhIAQyEZBwZgKm5EJACAgBCac4IASEgBDIREDCmQmYkgsBISAEJJzigBAQAkIgEwEJZyZgSi4EhIAQkHCKA0JACAiBTAQknJmAKbkQEAJCQMIpDggBISAEMhGQcGYCpuRCQAgIgaWF82szu9LMHjGzlwT/GQSuMbObzOzJQmyeMbOPzOyLQjtrzC4OTfdKLQ5Ryp55VMTtpYXzDjN7y%2BzMUc%2BHzezFgc%2BLGrexzBD%2BMTO7rUK93dbzOxTPMQ4B29F5VJND4LlnHhUNs6WF8w0zu2tEIBkQbxe1ZtuZweZ/FTEAz1vM7O5tw3Km9lMcIvGReVSbQ47nHnlUNCyWFs4/zey9SrOqooYvnPllM7vAzH43s5/N7Nmg/Ps6kasx2%2BybfrcT41cXbm9KcU%2BY2fVmdmNK4l6ao3IICKZ41IpDlLtHHmXS7p/JTyGcff/mzWZ258AslCXXxZ0vlPTndsJzdbfU7/9/VREC7TPjJ2IWdGlHwP8MzLgh5jsVZ5veKsq9fYUvKpaAn5vZN2aW238IZ%2BgjH%2BLRnjjk/sYpHrXikM8698ajopG/pHBCbpai/TJZWrCUZDD0PycAwIAKZxf8jy/00a7VYb4iMBplpo7/NbMHzexHM/s%2BEDJE5LVOWFtUgTLvXZmv05fbtDeHg0McwsYQj/bEIdo4xaPWHKL8PfGoeJzlkLa0sBe6mUK/TGYFvw4EjPicqHsojP3/xwZRaT1r5vdAxtQuAtp6RUNfJKLy7Yp2MbCkPK97AeYK5xCHsDHEo71wyGd8BFXHeNSaQ/5y2guPisf4ksLJGwsfX7g0Y2DzhEEMfGAsc72OYcSU7xmELIHX%2BlB/6olz/f8jlWwtbEsMqhz88dMx%2B/ZtRTkcHOOQD%2ByQR3vgkC/Tp3jUmkP%2Bcmr5gs/hEGlLeJRb1pn0OaQtLYzZIvsT/whmP3yOn/Oi4HMGFo8LLT6cf/X%2BZxAR9AjtldazZn7qPOTT7JdBO1nKtwrg8HJ5YIYvsSYObosXyZfdS8SF8/6Mto9xCPtDPNoDh2hbjEetOUQd9sSjYm4vLZyU5/4or7wvv4c%2BR2g9Au2Dpv8/9li%2Buc%2BzGJDKBsKBO2Q%2BxU%2BLD%2BueLvMlZvZh95JhNnlhd6jg04FofYhx5eZlmcO1cnmvju7nzBXOIQ65cIbfDXEm5NTaOUTbYjxK4RB2xKMsyo4nXlI4mSF%2B0EVS%2B/s16fQ3Oz9nfzk75d%2BkRWP2KkEz2wwC8VSXm1NSPESPeQhshXtVU0jPjMM3s7tvF3/XD93s7WMzu2Ei0JJSxuwGJ2Zkttk/EcVSi5lwX8hipqb6fIhHW%2BUQOOTwKLV/xaMYwxK/X1I4E6u0m2QeGIoJQ4z0CMz7gY/URcL9wgjKVxMBprEyqCMCPOfhJRjuRx2zwzLvl6AN7n/0HQdz6nCEPCk8inEInMSjimyRcFYEMzDlwoD/dupEVIz07gR38z6QYnb71YmV0Q6Fv5eH141s%2Bn%2Blt1WrZR22bDuFRyn9Kx5VZIGEsyKYganY0UBPnkL6vmmP1Of0XW4ZNVGhvrgRwoeTVPhr52yCr1m/tdtK4dGc/hWPCno%2BZ/AVFHPIrDGHvoOSu7EYfyZP6lFFZnzPnSiqzuyYU15jOwYY8BLO6eGRwqNcDlGieFQgSxLOAvAiWUM/5FhyCMzm5tTtSGGkONYC/Iss61OFNmYv5/tweRjmpS084uE4qik8yuUQpYlHOUwO0oqwBeBNZE1x6Ht2xIWDASl3cCKC%2BAXDDfVTAsWSjGUxm87Dp2VwCN8cp8KmXggSzmn%2BpfIoh0OUKB4VjnsJZyGAI9lTHPqedeoiDvxbXGzip6OG/F1sW/n3hPC2vPxhDD3cA08nzHLnnB5q02PrtJrKo9hlLuJR5f6VcFYGtDOX4tDvl4yPaujoaN8H6NFpZpA%2B40y5uHbMdpuW/x1FRzR/Gpnlhu0mQDS0CZ568921K7ugpBVuQ3ZzeDTVz0fmUZP%2BknA2gTV60iMslaXW0D2dfmclARSEiGUvp4Vu7f7HzusTwkJ%2BrucbWqa3aLlvxHfbHGwYukjZZ0AIoz%2B08fFeW3wZH9sH26IdLWzOiXynBIa8rmMc4vsj86hFX8op3wTVf14BllJEq8g3A68vRil1WUsalp88XHa8lPC3bPsc4SRP6gGBVhwCky3zqEmfasZZH9Y5G9SphZ87TwkSpdSaJf1vK7pOLqXOYZqxzfNzbJ06T65wzuFRbQ6B2R54VL3vtyycBD2IMI9d11YKlt9IE9oZ%2BukP0l7W%2BSl9w3fuzeaUw3KLyzpKf3uJQbeHmRpLzO8a9jGYt%2BSRX4U4xMWhsVeDR7U4RJ33wqNSLTiTf8vCya1IbLOJ/RgZ/jS2%2B5CWi1gf6i4bqXmjErOJT7ooMk56Zo1zxS%2B29zGFBDVspJTTMo3f5NN6mb4Uj1JmnLV4VKv/a9lpyZOT2F5aOGuLGESLXRLM5nJmpf1gQ/%2BC5BrAexAGcf5s48vjGnjUsMGgHQp81eYQdV2CRynCKR7VYM4CNpYUTghfW8T8irWxyGv/rk4XToT2/G5G6D/FANT93zJaAHoVMQOBFhyiGkvwyH/KY0azlWVtCCwpnDERc2x8U3QuVrHf9UEYw%2B0x/VlAyowgt05KXxeBVA5RqnhUF3tZ6yGwpHB6se4wH9vjl9NB2MJnyd9UkMgDPeFVbBLOHLTXk7Ymh2iVeLSevt1ETU4hnGMiNgewmG%2BKAcEt6fwsMY%2B3F18Sl/BKOOegfvo8NTlEa8Sj0/fppmqwpHDGRCwXuJRoKAOCEzc8/J45UXUe/4E3CWcu6qdNX5tDtEY8Om2fbrL0JYUzJmK5ALLtJ7ZEj9mUcMYQWtf3tTlE68SjdfXxJmqzpHCuERBF1dfYK9urk3i0vT4rqvHRhbMIPGUWAkLgmAhIOI/Z72q1EBACBQhIOAvAU1YhIASOiYCE85j9rlYLASFQgICEswA8ZRUCQuCYCEg4j9nvarUQEAIFCEg4C8BTViEgBI6JgITzmP2uVgsBIVCAgISzADxlFQJC4JgISDiP2e9qtRAQAgUISDgLwFNWISAEjomAhPOY/a5WCwEhUICAhLMAPGUVAkLgmAj8BbQdvlhmAl5tAAAAAElFTkSuQmCC" data-latex="{^{lim}_{x\to {{x}_{0}}^{-}}f(x)=A,{^{lim}_{x\to {{x}_{0}}^{%2B}}f(x)=A}}">,则下列说法正确的是__________.
A:<img class="kfformula" src="data:image/png;base64,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" data-latex="f({x}_{0})=A">
B:<img class="kfformula" src="data:image/png;base64,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" data-latex="{^{lim}_{x\to {x}_{0}}f(x)=A}">
C:<img class="kfformula" src="data:image/png;base64,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" data-latex="f(x)">在点<img class="kfformula" src="data:image/png;base64,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" data-latex="{x}_{0}">有定义
D:<img class="kfformula" src="data:image/png;base64,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" data-latex="f(x)">在点<img class="kfformula" src="data:image/png;base64,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" data-latex="{x}_{0}">连续
已知<img class="kfformula" src="data:image/png;base64,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" data-latex="f'(1)=2">,则<img class="kfformula" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAANQAAAA6CAYAAADIkHfqAAAGcUlEQVR4Xu1cv+/fNBB9nRESC0JsqDAxABuwdytCMAGCjc5Q1iJGuvJjhg0ETCAEG38AiI2BCSqYUMXMTPVQXFmHndiOz8kneZG+w+cb53z3fM93Pse5Al1CQAh0Q+BKN0kSJASEAEQoOYEQ6IiACNURTIkSAiKUfEAIdERAhOoIpkQJARFKPiAEOiIgQnUEU6KEgAglHxACHREQoTqCKVFCQIQa4wNvT918NKa7Ib3Qpq3sKcVzuI4ilL/vXQdwA8DL/l0N7eFrAJ8A+H5or0ANnsN1FKH8veFHAM/5d7NJD1vYVttnbftVQIpQq+C7/zBnze8AfAPgJeD+K12vAnglE51+B/B4n+7/k/IZgCcAPAvgpxkSB117jD0jwFcAvuxoRxCVwrQFT08d/2d2D1AdsLw4kRy0pwC8BeDByMFSg0lHeW9y/F74fwDghyj9+hfA5wDeSCBJ4r0O4EMA76xEes7BV4pGCtMWPD11FKHWjnLmeTowo5NdJ/H/ljTBKb5I3EuJL0lZSJKYPFyMkzC2b5L5GoCHJ1L1IHTKxh4wpzBtxdNLRxGqx0gnZHDA3gVw29ybG8jSQS5pxzY3TdUt9VxMvJzOtRCV6Fcrk+1T+rXi6aXj5oTibMsc3w5+C+B7eOYWgBejdctfJkq1OkBsW4kz2PJwKkKF6BTSvJD65aIU7/89RbOfp3T220SaWKJfzVjNYdqKZ28ds/b0CPk1YDGfTaU6uRSlRvZWbekA72fSt1YHqCWUtZ392jWSTQtzUYD/Z1uOE0vilMWLEThlp4ez5jBtxdNDx6S/jSbU3KxIsnlUi7yJNmdTqwOsIRQLFI+ZSGmjU5Cf050yQiQLhHrBFFyCDGsjn2UGsnS9NjPeOb1a8TwsoVILzSXg936f5W+mRqm9ploHCDPzks25sjgjPclkq3ep6BQTIrX+4/2QOeQqhiHK9Z6Yc5jW4pkj/RK+zfd7A7GkiF08c+bkTMUybqxLcAzOdPx7YMrln59Skfj31pumc4v7VgdoiVCWTCHi56LTUpTifVYkua82F008Zv8cpq14eui4ecqX2lAMM6c1OJSKbUSza4NhQM3MFNQh53BMf3il9ntKdS9pR2y5qRu/W8dox6rjXHTKRSmS87dps5ptwmQXZIbn5uxbmlzn7ucwbcHTS8fNCRVyaxuJ7iYKFaFqZZ0p/t1zx7918HNFllie3Ufib+4DXZ3eaKDjpjZga9KVsM6xdhDr3L2UzWFs+MydqcEvAFjl4/WPIW3JHlkttkuY1uLpoWPWppEpXy4v5gzKyzqVrfTYSiDvv9n59Z3awU9NElYG2/yx4s3skghVq3eP9rn12lrZS5jW4Oml4y4IFfJiO8uF8P5IYvaj4mGNxHz+0eg3CfppYtZcO6Alz4eU6ONJB7uha2XEZegS+XEbm2bVPu/VviSVrOm7BtNSPHvruGjPyAgVZlpr5Nz/4+qTXaiG5+IS76LBnRqwb1a+WN1b+z5cJ5UuXswhMB1JKEYU7rSz5BvvNwUgw0Zi8Iy59RPb5ORdvGfJgMtFYCShLhclaS4EChEQoQqBAvAQgKfLm6vlThH4cyoSuagnQpXDSkI9U95cLXeKACuu/HO5RCgXWCX0rAiIUOcc+T1sih8SeRHqkMO6aFTPY/CLnZ2pwZaE2ussGQ7W0Q/4itDca0GX6Csex+AvEQcXnbck1B5nSb6V8GREIur4a+Jou8tgDBLqcQx+kOr772YrQm01Sy59+NAeL7nkk8Qp7/M6Br9/Tx+k4VaE2mqW5GtKc2lc6kXUvb6c2uIiXsfgW3Q55DNbEGrrWZIE4XHu1CeEj0woz2PwhyRHi1FbEGrrWTIUQ0o/+3WUCOV5DL7F9w75zGhCec2S4fNktYNU8i27IxDK+xh8Le6HbT+aUHuYJVlo4CeT+WfTvqOmfCXnguzxmNJj8IclR4thIwm1l1lyaQ0VR62jVPk8j8G3+N1hnxlJqD3MkktVvvDV0viUML+nsHQi97AOIsPqEBhJqD3MkjyUmEr1YtS4V0USsbxuPxhZh65anw6BkYQ6Hbgy+HwIiFDnG3NZ7IiACOUIrkSfDwER6nxjLosdERChHMGV6PMhIEKdb8xlsSMCIpQjuBJ9PgREqPONuSx2RECEcgRXos+HgAh1vjGXxY4IiFCO4Er0+RAQoc435rLYEQERyhFciT4fAvcAmRm7SlfUJIEAAAAASUVORK5CYII=" data-latex="{^{lim}_{\Delta x\to 0}\frac {f(1+2\Delta x)-f(1)} {\Delta x}}">=( )
A:-2
B:0
C:2
D:4
若变量<img class="kfformula" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAJ0AAAA%2BCAYAAAAxrhmWAAAEKklEQVR4Xu2bPasWMRCFz/0Bgo1gKfojFGzstdBOwcLC2o/WD7C5ln78AwtFrRTRXjvFRqxV7G0sFOyUkV1478tuMtmdzGb2noWLyOZNTs48STbZnR3wogPODuw4t8fm6AAIHSFwd4DQuVvOBgkdGXB3gNC5W84GCR0ZcHeA0LlbzgYJHRlwd4DQuVvOBgkdGXB3gNC5W84GCV2agasATgE4C%2BABgOtEZr4DhC7t4QsA57oifwG%2BNpyPHE3MebgJmjV0XwEcywlY433OdLqoyjIry6uFX6cB3AZw3Kg%2BXQ8aKmVhYkPdqSLlPICnhoDIkv3cuM4qHa9VKaFLOyvAXQNwAoDMdg8NA2G9XBtKq1vVfofuMYAfAA4B%2BAjgCoBXG7tUAWPzsvSL0NVlu8naBThZNt8A6OG6CWDXcClNdZzQNYlFXVH3B2a0MwAOAHimaFp%2BL0tv7rowUh%2Bhyzm34vv9zvQJgIuO/SR0jma31pTsJuWNw9iMVEsvoavlbMP1ygz3BcDrTmO/SbgB4K6DbkLnYHJrTUjQv3WiPne7V/nvb%2BOjke1%2Bv%2B92y0cBfOjA91zWF4%2BD5RHA4p2hgBgOELoYcVqVSkK3qnDG6AyhixGnVan0gE4%2BgpQ/XnEceAtA/qpcHtBVEc5K4zpA6JaL3UEAJwH8Wk7CYMvvaushdLUdHq9f3tseBvBnOQmDLd%2Bpradl6Fo7sbfWI8GtHuDaAE2pv1XorAM8xZuh31jqKoFuVVlpLUJnGdipsKWSZiz09bt57Q5xVVlphG4vlpqkGQvo5HlOEn2016qy0lqDziKg2kAOldMmzczVWbK0bupcRVYaoRtGNAdV7n4KfDkquVQ400l9pVlp8jWLJBSNXdoBNmcQD/42InS5ZBoLk3JQ5e6nNMgHo98BfCoQOiUrTatRW65AbrpoNOi8kmlygcjdT7k%2B9jyXGkxTstK0GrXl9i102mSa2kkzcwI19DxXYzBpNWrL7Vvo%2Bo7XTqbJBSJ3fyxAR7qPHx5tFdAOppLAazVqy5W0nSzb2vIqYjUm1E6mSWnQ6Ns0XWY2OR752W0g5GxOnumGrqmDSfI6JF83d8nn8dubi9L%2B5NrI3o8GnVcyjRV0slPtD4Jfdq%2B9Uq%2B%2BLAeTFiZtuSxM2gItQpea7cSgmsk0uaSZqQGSmU42EGPnczUGk1artpyWqWy5VqHTLrPZDhoWmBMcgU1mOnmmk3%2B3rxqDKac3N8AMrdtbVcvQVev0AhXLYbCkHN7rnu08JOSg89Aw2Aah87FeZrhbAC77NPe/Fa%2Bk8eIuEbpiyyb/QGa77aOSyZVF/iGhixy9oNoJXdDARZZN6CJHL6h2Qhc0cJFlE7rI0QuqndAFDVxk2YQucvSCaid0QQMXWTahixy9oNoJXdDARZZN6CJHL6h2Qhc0cJFl/wNXY9A/A9MeHAAAAABJRU5ErkJggg==" data-latex="\frac {{x}^{2}-1} {(x-1)\sqrt {{x}^{2}%2B1}}">为无穷小量,则x的变化趋势是_____________
A:<img class="kfformula" src="data:image/png;base64,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" data-latex="(x\to 0)">
B:<img class="kfformula" src="data:image/png;base64,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" data-latex="(x\to 1)">
C:<img class="kfformula" src="data:image/png;base64,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" data-latex="(x\to -1)">
D:<img class="kfformula" src="data:image/png;base64,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" data-latex="(x\to \infty )">
设函数f(x)在x=0的某邻域内可导,<img class="kfformula" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAQYAAAA7CAYAAACZpiT7AAAJhklEQVR4Xu2dO8x2wxbHl1pOiaiOoFLoBIlb0AgRKkeOULiULqEiSiriUroU54Q4KnJCNAihICoKFUIlKF1a8ou9ZDLmPvPs2c9%2B1k6%2B5Hu/dy5r/WfWf9Zac/nOEPsMAUPAEPAQOMMQMQQMAUPAR8CIweaEIWAI/A0BIwabFIaAIWDEYHPAEDAE8giYx5DHyEoYAieHgBHDyQ25KWwI5BEwYshjZCUMgZNDwIjh5IbcFDYE8ggYMeQxshKGwMkhYMRwckNuChsCeQSMGPIYWYl1EXhg6e65im6pU1O%2BounTLGrEcJrjvlWtbxSRe0Tk1koB3xCRl0Tk7cp6VjyCgBGDTY3ZCPwuIjoPPxGRyxoF6qnb2OV%2Bqxkx7Hdst6QZnsBbIvKmiNziEMG/ROS15Wf%2BfluDt6B64jW8LiL/25LixyqLEcOxjtxxyY3RXiwi94vIPxzjfUVEvhSRJ0Wk17B7iWWriH4tIhesLZwRw9qIn2Z/hAt4C37u4BkReWiBxA0pWlEa0UZr36Pr4WU9LiKXOh7W6D6i7e2BGK4QkRtE5LFG1J4QkXdE5OPG%2BlYtjwAGy/jgGcS%2BEUY9oo28NuuUUA9KQ611el16OXZigBQe7ohLgUHbePpIyYGkG6vKgxvcsntURG5e5PtURL5PjFXMqAk3fhKRs0TksyUc%2Bb/jabgGsydiUL2m6HQMxECM9UVkQjFpSGr1JpyIT28SkTtWpeUxnbkJPLdF9vafneGGempBDnhlubkWMgDGlxWTbUh%2Bz4fnEWtvihGNGcaDelLVIuYGq7rBxgovLCsCK8O3jsup2ewXReQ%2Br%2B27F2Ou3fOOiYjrBsm83KjDrGoYz78jhgdp9JJmr14p%2BXKrvZ%2BDoDwE7iYwc230yj%2B7/hSy2wIxwP5MYDKvGKe7naWrzZUBNz%2BXxVbigGz4cEVThj8rq10rpz9RY4m92RNa%2B8fjYwxy5xNSBqDez6sZr26KER0Y6Ck6bYEYUFw9Aj9swPiZVL63QF7gP4ltHAjlkkD4QXvEqbEkGP3ftWKuoVVOf5V08wt4WbcHvAiM67wlF0H5MxeyvHxx192fc0ZcYwsliUfaSxmALhjolfKAphhRDRgNZafoNJsYND6OJc5ihsokx/BDOQFI4yMRCXkZ%2Bjvc0dDxWdxeiGONc/c9cur80lDLHUd0ABd/QunJQN/D4GdyESO3DX3iyhk05Qkb%2BFQO/s44f7V4evysekKoPrmH6jfY4eaqnCQxEEYwyDFDjV2OSRkwbV6XcF0xkPci25spwhk9Y3rkVFkwBkjVJQZ0%2BME5UahlFUt/ork/h4imR%2B9YYjTWpn%2BsGdm%2BWQqTgIa0%2BX4NkPdej0SfJDH4OYXSScgkIPwIJQrfFZGfE9ti9Eny6vpAZ8T79xbEw6Vypsr1yJmL3yFOPt%2Bj8ncI/J0Lfg8Go07ahYgrhQnlST7XemwaJrnexogxmtkGc5y82PkiwlYvntNqu2azQwmU56uNaVMsSpusLn5eQgeZHRA8itjkX4uhe%2BVEH43f/RWUf8d9P8czMh9vSPJcB39CN8g2tCLXGImGAM8v7aUONvntuluUpX1q%2BFRa3splEJhBDHrUE9E4mMMHI/IR65Zsr6WM101mhtSHGPAKYrqvRQy9cioxoIdvGKpD6N/dE4h%2BYlDruduELUZEO%2BwgkDje0yregsVR1plBDAqUxp%2B5o7IhYGcQA/ISz7d8nNTzV80RxMAKT9sQq0uoaph6OEhlTuUXKBNrr0XnrdUZPX5b02%2BoPDOJQePdkoy1r/QMYhgK/BIGhA5uaT85z2a0PNbefATYTv5noRgfFpZrKjaTGEpPxG3FY2gCOFFphMcwWqbe9q7ubWBg/e%2BWRObAJoNNaQK3pR9/Nw5i4E/J90FJodYyM4mhNfGoLm/sIBLuMNuRLclHzhY81ZAMbcG/R86W/taoc80anRT2we4Gf%2BxrQGAmMWgc3LIFw1Yf8XNouxLC%2BSWyHQlE1OWLbVcS2oR%2B1wBvskqPnKNlsfa2iQBe9YXO7dTa3btmrWYRQ0/iEWWJv8l4h95gcO9ehIBhpSZRF6vL3nHI2xidvOqRs3nAT7ji6PE7NJTsDLGI6QndnoW0WtZZxNCTeETJ1IUnPb0XOk2Z%2Bh3t5i5mVQOcqNAj50g5Zra1lavhMzGI9e1vNa%2BK1Sxi6Ek8KpCpt/AgnmsDIQEM/H7mEtWoU38lk61UTnTlBFzo/kdJPyPL6MMptIl31RIKuvJs4Wr4SHxGtYWH4N8hWuuMTfbxjFFK%2Bu30JB61LcIJ9%2B0Gvw%2B99/Db8gsmMZnc2HFbjJSMcCxpeSgsSuRkQvC1nPkYKTcYXeSQgfuY68h%2BrK0/L5C5c/UkPIbcVl3JxBi9gwBZPbLilesSHbUMqyofXtAhiSv3H7f4q1hqsuqrWLwCrd6FnoIMXQ1PXQv3k241z73V4Lzlsv4t2IPKOiOU0MRjy8GmkFdwdsdDsNoeicAfGy7vHHRwvMYhwqsyD6r2ykPCKxUehFzZmHvrh3puudDV8NS1cP9aec1zb72YbKE%2B44I3O%2Bq1sqxOaxGD/r8CxO%2B568ZZob0ChBTkDUruWITahqgOvRLX6hQqjxv/eeAdidGrJwYcuwZfQwyU5co0W8r%2BcfDQ1fDQtfDQNfDa595GYD%2BzjSk3R9ciBiYJh444H8BKQqzcasihQYIcWl3snrprTRi8hTsDOtY%2BlloirxpjKJ9RQwzuiUAIwk/qhq6G%2B9fCUw/Jlj73VqLzVsv4pLBaonYtYtDEXi4BuNUBmi0X5PXfQP6jdPXUJ%2BZr9SjJiofIggnMmxjswcceawldDfeT0qlr4KXPvdXqvJXyEDSHm9wEZOjlqoPIuxYxHER4a/QvBEaunrTFfyXHH//5u1KPwU9ShraWQ1fDS66B1zz3dsxTRHeifB1WsdlVOjnm0TkS2Ueunrkcg%2BtFxHYl%2BHcel%2BXDS3RP8CmkoavhPvGEroFr7oJ2cs%2B9HcnwbU9MI4btjUmNRKNXz9yuhP7PUrp9mHt1u0YXK7shBIwYNjQYDaKMXj1ZoUMhhCuakgGewKpbaA34WJVGBIwYGoGzaobAnhEwYtjz6JpuhkAjAkYMjcBZNUNgzwgYMex5dE03Q6ARASOGRuCsmiGwZwSMGPY8uqabIdCIgBFDI3BWzRDYMwJGDHseXdPNEGhEwIihETirZgjsGQEjhj2PrulmCDQiYMTQCJxVMwT2jIARw55H13QzBBoRMGJoBM6qGQJ7RuAPczNJWsmunR0AAAAASUVORK5CYII=" data-latex="f'(0)=0,{^{lim}_{x\to 0}\frac {f'(x)} {sinx}}=-\frac {1} {2}">,则f(0)是f(x)的______
A:取得最大值
B:取得最小值
C:最大值
D:都不正确
<img class="kfformula" src="data:image/png;base64,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" data-latex="y=\frac {2x} {1+{x}^{2}}">的奇偶性。
A:奇函数
B:偶函数
C:非奇非偶
D:既是奇函数又是偶函数
若<img class="kfformula" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAMAAAABDCAYAAADK%2BApxAAAHDUlEQVR4Xu1cPcxtQxRdrxaJRkQnoRaJAomEhI4IFUJHlH5aalo/LTqCiggd8nRER4voRNRqsuTMy2S%2BmTN7Zs7MmXPPOslL3v3u7Nl71t5rfvacu69BjxA4MQLXTjx2DV0IQARQEJwaARHg1O7X4EUAxcCpERABTu1%2BDV4EUAycGgER4NTu1%2BBFAMXAqREQAU7tfg1eBCiPgVcWkXeNomxvbWvs0tysxNY97TQPaOuGIkAZoo8BeBHAUwVinwP4AMDXBTJbNC21dS87txhrdR8iQBl0PwC4v0zk/9a1chWqbojU6KyRabFxd1kR4KoLOHN%2BBeALAE8CN14XeQbA04Wzv%2Buds%2BtnAD7t4PGYvSlbPwJwF4D7APwYIXNPOzsMvb1LEeAqhgyCuwG8DOBmL2hbgqOFPDkvx%2ByN2fo2gG%2B8rdi/AD4G8LynoKeduXHs8r0IcBV2BgZn/3Cfz7%2B34NUqnwqQmL0xXZz9/WDnofedyJh62blLgOeUtjg01/dRv2cAvAHgrWAArYHRKr9GgNDemC7%2B7dUgI5Vqd5q4GD1QHrK4/wwdMQNZXgfwhLc//jNYBVIBzJn1bwC3Avhp2Tp9CeC1jQkUYrRmb8zWMM2pFaBxSa8JWu4xP4noTTmjRkeLDIPqzQQuqW0Fx8MUJ7/nw9k41kePFSBlr0UX23AL1JuoLf7oLjt6BeBs%2BVwiwEiOHlmSEhDX7IsFFQ%2BWLoAcAR4PDs9OfyhPWa6EuefZFVxS9uYIQN13JDJaOdmcvYf6fjQBUgfMWUD7bdnOxHL9a4HhVrAwq%2BKPq0dgpezN2crgD2f%2BFFFn8U0XO/YggL//Zw6bM1y4KjCg6CS25b%2Bblj32A8sWyv9cczFVcqC0BAbTjrwzWJutexCg9MDucHXBH1t1e9i5FrwPArh3we59AB92ifREpyMJ4C5sfJ0uNReC7m4kwxUj3Ldu7Sz2lwpibhv4%2BDMnA%2BrX5eKM37mxcW/uZ5Fislv4OWVvTB/x5yWY/17SKDtTY%2BW9xO8AvlsmNr5mcrEEcHtenwAMoL8iB2OXsQgD3P8cI1RLUKUO6H6f4asCtIcO5PPzkgXi//8JAq3HKwY5e2O2xvDx/dHDTqtPiOVFEyC1X%2BUqwMe/pOHnMMMRZor4/QsA7rQinGkXI2gowjZ/FL7dGW47NjIXOXtLbe1lp3W8F08At18NZ0e3jN8WmTUJntvjc599u/eZhOJyGfZnBdy1c9uY95b%2BwguwsD8S1qU%2BLbrCG1iLzFqbEntLbN3aztJxnoIAXG5DoN22JvZ3/4YzPPA5OT8VWQo627MfZm94mZXKjNT020vmaPZacbh4AnDG5g0p30L08/3OoeGsurb/J6ip/qyAq91cCFw8AeaCW9bUIMCDt%2BXyLtY3J7%2B17aUIUOORBpmHGmTPJPr9oMGKAIOAdmoeHqzvqOquDzJcBBgEtNTMiYAIMKdfDmsVA4rPyNv%2BFrBEgBb0JHsFAUeALUmgQ7AC7VAI8F0bppeHvl9TiZBWgErg1sRyVRA6qJyqy61fFuw5OBFgY3QtVRA2Vjldd7MTgO9z8bV3VuHgT2X58JVoPi%2BNQPMoB6QYFrlKZtYqCCNwlo5JETgyATjD84fo4VukDmrOfpYqCJO6psmsewDcEvQwKp/fZPho4dEEsFZQsOLAIOdvcGN1N61VEKy6Yu1Kis%2B26MnJnrKwbQ4Uy/cjCeC/mutSdKkKChbb2cb9KCZWxyfsgzpjVRCsusJ2pcVna/VY5FLbwaPdBVjGummbkQSwVlBwtYNKB7pWa2itCkKpHtd%2Bz19PxWyO2cM06CMHugyr9UW13EgCOCMtFRSsA2JfrOHJf6ny4z1%2B6bRHDc1cSjdVu3T2TJDV113a7UEASwUF62DXzgDsw1IFwarLb9dSKLdGnyWlG5KSs/8vSyJgDz/XjHO4zEhgrBUUrCDkskCWKghWXbHzxEjsrCldf7Z3%2B/9vATxaO9BLlxvpRDrEUkHBijl/Eba29fHfhfH73GLMo7cV1pTuaLusvpq23RbBMO3gOhqWCrSt07z%2Bucmv56PCths5VwSoAzJGgB5p3pR1qZSuVoBCf4oAhYAtzWOBZk3zthbFVWHbOp9FpUSAOjDXZtot07yhdbmUrlaAQn%2BKAIWArawArqct07y%2BdZaUrghQ6E8RoBCwpXlLodwajZaUbq8CvDX2HkZGBKh3VW2h3BqNlpTubK9m1IxzuIwIUA95afHZek15ydzZIN/DSVuIAG2OLyk%2B26ZpXXrvwrY9x9a1bxGgK7zqfHYERIDZPST7uiIgAnSFV53PjoAIMLuHZF9XBESArvCq89kREAFm95Ds64qACNAVXnU%2BOwIiwOwekn1dERABusKrzmdHQASY3UOyrysCIkBXeNX57AiIALN7SPZ1ReA/sbm5U0yJUpEAAAAASUVORK5CYII=" data-latex="{^{lim}_{x\to 2}\frac {f(x)-f(2)} {{(x-2)}^{\frac {7} {3}}}}=1">则函数f(x)在x=2处
A:A
B:B
C:C
D:D
<img class="kfformula" src="data:image/png;base64,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" data-latex="{({e}^{{-x}^{2}})}^{''}=">________
A:<img class="kfformula" src="data:image/png;base64,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" data-latex="{e}^{{-x}^{2}}">
B:<img class="kfformula" src="data:image/png;base64,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" data-latex="{-(2x)}^{2}{e}^{{-x}^{2}}">
C:<img class="kfformula" src="data:image/png;base64,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" data-latex="4{x}^{2}{e}^{{-x}^{2}}">
D:<img class="kfformula" src="data:image/png;base64,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" data-latex="(-2+4{x}^{2}){e}^{{-x}^{2}}">
无穷小量的代数和是无穷小量。
A:错误
B:正确
若<img class="kfformula" src="data:image/png;base64,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" data-latex="f(x)\geq g(x)">,则<img class="kfformula" src="data:image/png;base64,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" data-latex="{f}^{'}(x)\geq {g}^{'}(x)">
A:错误
B:正确
α~β、β~Υ,则α~Υ
A:错误
B:正确
若一个函数在某点的左右极限存在且相等(设值为A),则此函数在该点的极限也存在,但是不一定为A
A:错误
B:正确
设<img class="kfformula" src="data:image/png;base64,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" data-latex="f(t)">是连续函数,且为奇函数,则<img class="kfformula" src="data:image/png;base64,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" data-latex="\int ^{x}_{0} {f(t)dt}">也是奇函数。()
A:错误
B:正确
若<img class="kfformula" src="data:image/png;base64,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" data-latex="{x}_{0}">为f(x)的拐点,则必定有<img class="kfformula" src="data:image/png;base64,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" data-latex="{f}^{''}({x}_{0})=0">
A:错误
B:正确
y=xcosx+sinx是奇函数
A:错误
B:正确
设数列{<img class="kfformula" src="data:image/png;base64,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" data-latex="{x}_{n}">}有界,又<img class="kfformula" src="data:image/png;base64,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" data-latex="{^{lim}_{n\to \infty }{y}_{n}=0}">,则<img class="kfformula" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAALMAAAA1CAYAAAAK/do2AAAFsElEQVR4Xu2cO+xnQxTHv1uLEtEJepVYggIdgoqNjcaj9IiOmk48So9GCFvZxXaIhARRUaMVUXq05JPMkcmY+56Ze//zPzfZZO/93Xl9z/ec+c6Zuf8z8ssR6ASBM52Mw4fhCMjJ7CToBgEnczem9IE4mZ0D3SDgZO7GlD4QJ7NzoBsEnMzdmNIH4mR2DnSDgJO5G1P6QJzMzoFuEHAyd2NKH0hrMn8r6RZJz0p63eF3BEoi0JrMj0j6QPrfNvozkl7LPC85Vq+rcwRak/k9SY8OkBaif9g53j68igi0JvM/ki5KeqjimLzqU4rAHmSO9fK9ks5lojWy47qgrXn/CklXSbo1yJT4/uwptd0Rh/24pPsk/R46h80+lfROi862JDPEZWBxm8iO85KI2PFzFoqQNI3k3KOtnwvgpOVaYOZt5BF4QdLNmVn3I0nfS3q5NnAtyfxqiLRxm0Tg3zKLQp6T7UjJGt/nnKM2Xl5/HoHbJX0l6Q5JXyev2G9E7Ms1AWxJ5p/D9JPKAqIzFxE6vvD0l6KInWY8+J1p7YaaAHndsxDATneH2TRXgJn2c0kvzqpt5UstyUxUZTB/JTlmnqObr0meAwCXkZ/p6troHudAi6X1rYTCi21A4DNJf4ws7LHdlZLu2dDGZNHWZKY908nWOZMOueeQ37SWOUN8T33IF9PQkwPe8ALT5WOh/PWSPgnOx4xxddgM+mKjNiQ9yXTMAjenM5mNWBg/tWEcNYoSeH4c6debIXJXnUVbkplI+rGk75J8MiR9P+jmWFON6WUMMlRfDWNRJ9HllaAJTa+TafkpaEGiE1PtWkyp84FACOTT25m6jprapF9vTZD5yQ3YzLLpWuBnVd7RS0SWS8kCxpzQtD7O9U1G+8+FgTbeDc7C/1PjmwPFs9XcutP3mAFwxDUXASnNTDiZ1yC5UxnIFU/tti2P1i+1a8kiyhZIOcewBXH1rMAKjJ3MK0A7ShGIB7lqzGwWgZ9INhuQOQ9WanMrrk7mrQjuWB59zFVjdT7kKEfVy7Z+IfU2tDDtbgG4I/eKN51mVko2kKYkqbukXi7ZV6uLPv854tw1nf+/8dSYJmuAdaQ6LdOQatdUV4+dLxk7T5Kbsk0vl9LopReAzCbUOZR6Yw3A2qKbTZMjEXJJX8h/c8DJDJU7xkrkvC0x1tj5krEgkiPzmF5e6zRLMJh612aO3OJ07Lepehf97pF5Gi7IRW6caMrGyZ1hm90Mx7PnM7tfufMlc86T4ATkri3lZ1EZTZrT6GudZnrky96gn3dl+ojE2LqZNKsnJ53MRCw2F2oeYDEjQehfQoYBot4f7gHa8sMp6On5kvQ+ZySTABD673CehXLkdnPT9FqnmUWQhS/RF07O0W8ujoB+2eoTuZNOZrayASw9pLTQBtVeTxdza86TzMkvr3GaaoPeq+KWZK6l7ZABQxsJ9gGt4Zt+GPBGiHy/hgNLpZ1i6XmSXAprTkquhNPsxcFi7bYkcy1tN5S2QoJciHbobBFl5yn4UCB2Auq5aeNBodQw6fmSqfMkvB9rY8s5584Jx20tdZpiBDpSRS3JvETbpRF1LmZx5DWdGZeFTJx448pF81yZuW2XeC8+Obhky3yp05To6+HqaElmBl9D2+EkT4d/8UJwiJgYnis39r3JDIEfDpKHPvJnGWoubg9HyC0dak3mGtpuSDPniGmSBMzITKRJ/r3JvMWWp75sazKX1nZj2QyI+UMU2eLk/Y3hw9j4zx7YwfjSi8BTT7JWAOxB5rjNqQXRFA6UR2IMTcVoUL7a4HMrUnjxu6ZJrQ3bGJlq038/KAKtyXxQGLxbPSDgZO7Bij6GwRW9Q+MInEgEPDKfSLN5p3MIOJmdF90g4GTuxpQ+ECezc6AbBJzM3ZjSB+Jkdg50g4CTuRtT+kCczM6BbhBwMndjSh+Ik9k50A0C/wIL3lFFUPhg4wAAAABJRU5ErkJggg==" data-latex="{^{lim}_{n\to \infty }{x}_{n}{y}_{n}}=0"> ( )
A:错误
B:正确
<img class="kfformula" src="data:image/png;base64,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" data-latex="y=\frac {x} {{x}^{2}+1}的极大值点是x=1"> ( )
A:错误
B:正确
若一个函数在某点的左右极限存在且相等(设置为A),则函数在该点的极限也存在,且为A ( )
A:错误
B:正确
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