|

 函数<img class="kfformula" src="data:image/png;base64,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" data-latex="f(x)=xsin\frac {1} {x}">在点x=0 处( )。
A:有定义且有极限
B:无定义但有极限
C:有定义但无极限
D:无定义且无极限
<img class="kfformula" src="data:image/png;base64,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" data-latex="{^{lim}_{x\to 1}({3x}^{2}-2x-1)}=(\, \, \, \, \, \, \, \, )">
A:0
B:1
C:2
D:3
<img class="kfformula" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAALcAAAA8CAYAAAAkGSuEAAAG3klEQVR4Xu2dua9HQxTHv1qJhILoCH8ACrHETiP2CiGWWEpLqChQUBG0llhCUNmjsZMgCktt7SwFidCSD3Nkcv3e73dnu3feOFO%2Bd2funO9855zvnDP3vQPkzREYFIEDBrXLzXIE5OR2EgyLgJN72KV1w5zczoFhEXByD7u0bpiT2zkwLAJO7mGX1g1zcjsHhkXAyT3s0rphTm7nwLAI9EruayTdIulzSXdL%2Bm7YFXDDmiHQI7kvlvSkpGMlPSHpi0D0ZiD4wGMi0CO58dbvSnooeG6Ijhf35ggkIdAbufHWn0k6LhA7yRh/2BGIEeiN3Hhr9PbBvkyOQCkCvZGbgyOyBN3tzREoQqAnch8p6VtJ94QMSZFh3rkJAqdIOlfSnYmj3yvpDUkfJvYrerwnciNHyI6cGQ6URYYt0PlmSWeEKIOcunWBd675Coh9m6RLMiZhfR9YkuA9kZusyNWSDpH0awaAS3d5MVroP6XhP/x4RtJrkp7PBPoySedLujKzf3K3nshthRrkyX5oMaFTyY3Xv1zSCZK%2BkXR05wZfF4iZ47Vj03AIbJDHl7C3F3Kb3n4vhPolbK/1DoiKLMnB8mtJX2aG%2BlrznzMOpHyhwGvbO/Dely5lb86CzAEj9RnT2/vtMMliPZdJbHToB5LuyzigpeJb8jzzfKpidGFDIz%2BbHy57Ibfp7WtD6b1kMZbqC7GpnJ4oCe/9cOKLzeMjT3J1bOIrsx5nnsdX1Mpo908z8EqefC/kJrd9TIeVSRbiZ0mHhgW5SdIrITOCzo5bKpaMfUWm109e6IIOtclYe7PsaVrqghRgtGdXqpG/hN/2MB%2BbKIuK5HhdkhGZ/C452xrzJDyT1z%2BnBagVx/xY0qMVD4EcTm8IEa/iNP87VI1FKp0gueJ3wu0/7pb00h6MctdGblJZB2XICLzVBSEzcmDYNGQNtulttO5VAYyjJL0aQjljHRYyLW%2BHMVpilpoJmjOXFmP%2B5709kJv72neFQwsHy96aaeNnM3UnEeDwyEND2vsDObfpbTIUVvQ4L6TQ0PhfhWjypqSzK0WRbZi3IGKLMbsk90uSLuq47A7JuOuSc/C7I8iYUyfZgV16%2BxFJLwcS26JBiHiDIWs%2Bmmw4O%2BTmOAjOEkSSaWtBxBZjdkluijdHJJbdS0M2nhCy0v6QhFSYVt/w2HhJfk6zKAdhN5FgCq6l%2BjZ5fHQsjUzLpga5b4x%2BYSnHnA2WQ/S4TwsithizO3LHh8mUsntJyIacHGrIfHBYtAbhYrKxAFQPaRRaSF/Rfp%2BZxuLgybs2EZKxOaTFBN5GQhtrDRnZgogtxuyO3HaY/F7S3LJ7bsjGeJMJmwg3JXepx2M8yutTQrKxHpN0fUIGAn1NWyOzUrvoYmeOvaJWKe7/9l/DE8STt8Mk%2BnLuHe7ckG2Hsk0yoUVZGO/0yQbpwfxJhaVgz1ikIefIoWrkCAOxsUiJ1roPwubGuTTfqCkA1waN8awyyXVR7mfktLkh20gVe22AxruSamOj1SwJ7yU9Yr095360eXrSkLGMmm5ysGtxoOQ9FLJS73DvtZasF0WxuZIshxN/91mb3FaZLLnDPTdkm0xA61rDs/4wIU02mJOOhPO3Joto0cP0NofWHyd5czIpJ0V3OTZlVhjn5IqE22Zz7ahW6xLWznVam9xWHCmZx9yQzXOQrXk4DKij7y%2BMZIl5aX5u5Ia40/vNsZyhz2khnWieu%2BSjgZ2E2OMBNmqta7k1x9pqTwmpcoGyfvale8k115SQnZqhKLWP/oR0QjBh3UI7npDDJJkYKozTS1OQ/6yg13kGrRtXOBn36coSapet2EHKtlTzYxuJg%2BaSZG1ZYtdcuU039%2B%2BSlIRs5MtvW%2B4SW1471rW7Fv3/8vtaGQ6k4e1Lbcw1PbdlSvi6gyrlnFYSss3LT6uFVtAp%2BYRqztz3%2BzN2pyX3YMlB8qeZNYIqWK1Jbv6q1OmJ30yWhuxpeAdEwu37S3mTKqu23iDIk01SateMkGJIrUXkiE1mTXJDKj4E7ukm4K5F8t//c45IJWlOn2Ks1yK3ld35fKnHm4DFwPoA6yOwFrmt7L6fPitbf7V8BkkIrEVuO0ymXJZKMswfdgTWIjeHSaSJ623nYDME1iI3Kb2S%2ByTNAPGBx0FgKXJz4480HBobb839Apck4/CoS0uWIjcamyokB0lu/yFL%2BJk3R6AZAkuRm/sEkJo/ZcB/TcCT74c/dtkMeB%2B4PQJLkdssQZJwzdWbI9AcgaXJ3dwgf4EjYAg4uZ0LwyLg5B52ad0wJ7dzYFgEnNzDLq0b5uR2DgyLgJN72KV1w5zczoFhEXByD7u0bpiT2zkwLAJ/AVwUYEzHcIz3AAAAAElFTkSuQmCC" data-latex="\int {x{e}^{{x}^{2}}}dx=(\, \, )">
A:<img class="kfformula" src="data:image/png;base64,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" data-latex="\frac {1} {2}{e}^{{x}^{2}}">
B:<img class="kfformula" src="data:image/png;base64,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" data-latex="{e}^{{x}^{2}}+c">
C:<img class="kfformula" src="data:image/png;base64,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" data-latex="\frac {1} {2}{e}^{x}+c">
D:<img class="kfformula" src="data:image/png;base64,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" data-latex="\frac {1} {2}{e}^{{x}^{2}}+c">
<img class="kfformula" src="data:image/png;base64,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" data-latex="y={x}^{2}sinx的奇偶性">
A:奇函数
B:偶函数
C:非奇非偶函数<br>
D:既是奇函数又是偶函数
求积分<img class="kfformula" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAALoAAAA8CAYAAADR56A0AAAGzklEQVR4Xu2dOexuQxjGn9vSUBCdtUchlthpxF4hxBJLdAgVBbegIqETSywhqOzRWEOCKCy1NdGgoNKSn8wrk8k535k55zszJ3fe09zk/836zDPved7l++4B+eMIdIDAgQ726Ft0BOREdxJ0gYATvYtj9k060Z0DXSDgRO/imH2TTnTnQBcIONG7OGbfpBPdOdAFAk70Lo7ZN+lEdw50gcBWiX6zpLslfSPpIUk/d3EavsnVENgi0a+S9LykUyQ9J+nbQPrVQPCBD30Etkh0rPjHkh4PFh3SY939cQRmI7A1omPFv5Z0aiD57I15R0cgRmBrRMeKo8+P8GNyBPaJwNaIjtOJdEGn++MI7A2BLRH9OEk/SToYIi1726QPVITA2ZIukfRAUa/8xg9Lek/SZ/ldlrfcEtGRLERZLgjO6PLd+QilCEDyeyVdXdqxoL3N8VhNsm+J6ERXbpJ0pKS/CoDzpvtD4CVJ70h6dX9DDo50raTLJN2w8jz/D78loltSCAmz67lL0nWSTpf0paQzaoE1Y554rT9KOnHGGLW63BrIt6Y1j/fyerhUz9bY4FaIbvr8E0nnZ278H0lPS7ojs33LZj9I+m5lSbB0fxDvtQrW3NaJVb+mFiZbIbrp81xHFJBekXSbpCoWYQGL0KSfSnpkRQdvwfL+68oaX2jwxsEAIFdXd0y3QnTT57eE9P/UweG53y/pnBogTS0mQ2qRH0Bura195y4ViXVaTc0cFopP8JWkJ+YuPLffVohO7Pzkgozo+5KOb2CBcnGN23GY10ub/sWFaoRLAKx2wbZAdLKgfwYActeDPn+jlr6bw+6oD69n8gMXLxxnze5fBH+ntgzEAb69RkAhl1hrgozz+VGoUqTWZeq5NHjrJDTQvemDdbKH8BX6805Jf0s6TNJJoWBsTEbQ/sYwwAmS3g6vVqzP0SHa8+HI3LS5XBIRFubCjyBcN6bPl8w1hVPJ5xiOVlyoMnerzcWHQL35g8EZwimdetDmaHTisO8mjfmMsl7+DoAQ7ChJL0Zanotw5g7ZQ/TBkhl2qaie/D6Mi2y6aIAYjHtMZLkh8aPhYozp87lzTWFU+nkVso0sqsrcWyA6EuTKgtQ/5KAWZmjtXAAsvREUy5p69U+F1+VQfz57M7lAHMTLkaOGFPk8cdzs8qXO8S59Pncu+ELUaW7p8lsDb6MqZOud6CSKji1I/e/SvEgHPHj+JdIBGVKPftdFgXxxXN7CmLsiJhY+jC+DnSnal2coqTVnrlJLndveiZ6L1Mx2sSOak/o3Uk0linZZ0hJH1sKYu9581mboMpQktXLmmgnzZDcn+iREyxqYI/qLpKnUPzOZpZ5KFI1ZfbPQY45suhv0OM+uiAlWm3KE9DIQUXimIKmVM9cytMd7V0vcJEswP2b1Mo7WGt0cUXRxTg16Tkx6VybS+ucmmrB0U5eCNkM1N7t8gSHK5cy1FtG5ZESIWoQXeROuHnptTXTLiN4TNPXUQaaaFycwDTGa1R+TEh9EwJrzOjSvWeQ0upNq6zF5Eq91qsY7dy5b576dUfb0R4MSBfAnKrZ6vVJroltGNLcGPY2ADBF9zOqn9TEWwzaQ07Dj0DhEc85KCMFrn8sTH5ZFfcyX4PL9FpUAzJ1ryhDM/bxqgVW0yGqFZK2JDnF5ctcRW08O59eBWpcpfW5zQbYno/6xBOESnJvE68e+lMBluyKKrJj15u9GdOaKa6/nzjWXyDn9wK12GXG1OXMJlgNUaRv7xn9JaS6veCQJmUlLDKXzQqKhsCLtLGt6+EBJKsS8MOht4u/o1TjTSf848RTPy6ufVzCvf5MAXEScZsZivXEmdslcpTjntmcPhHqHss25Y5S0AwMCEKvLlhJLWrKB3LZWmkuce27yI3cubzeNQLUISFgKPsx9tapPW1p0i7jwjRayo/60R8Dqedb6YrTtECf09xrluTZhS6Lza1zn+XdE27M7WQESJpVa+1wkkg6JWEWybIHo6EG+BJ1TsbhPoH2saQTSEOp0j/wWa449uopWFt1S/3x9K6diMR9Gb+kIDCDQiuiW+s/96pwfniOwCIFWRDdHNKeQa9EGvbMjAAKtiI4jinxxfe48rIJAK6KT1Mmtb6kChE9yaCNQi+hUJhKjRZNjxalxcNlyaHNrU7urRXQ0OdlPnFC++YN04W/+OAJVEKhFdGoaIDg/+8D/ZoGF9x8SrXLEPkkLZxTZQmmuP45AVQRqWfSqm/LJHIEUASe6c6ILBJzoXRyzb9KJ7hzoAgEnehfH7Jt0ojsHukDAid7FMfsmnejOgS4QcKJ3ccy+SSe6c6ALBP4FL/BtTLgBVVsAAAAASUVORK5CYII=" data-latex="\int {lnxdx=(\, \, \, \, )}">
A:xlnx-x
B:xlnx+c
C:xlnx-x+c
D:-x+c
<img class="kfformula" src="data:image/png;base64,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" 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
<img class="kfformula" src="data:image/png;base64,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" data-latex="\int ^{1}_{-1} {({x}^{3}cosx+x)dx}">=( )
A:-2
B:0
C:2
D:4
在区间(a,b)内,如果<img class="kfformula" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAKYAAAAwCAYAAACbtwEpAAAE90lEQVR4Xu2bPcxPSRTGn7fVUwtqnfiIKNAIm9gKIRQ%2BWoSKbEm1m13KtVsQgsp3NIiEBNEpVIiaflvyJDObyc3cO2f%2B987/njv33EZe771nzpznNzPnzMy7AnssAgojsKLQJ3PJIgAD0yBQGQEDU6Us5pSBaQyojICBqVIWc8rANAZURsDAVCmLOWVgGgMqI2BgqpTFnDIwjQGVETAwVcpiTk0FzB%2BAnVJFcK02LlMA8yCA2x1gbgewB8DFnvPMJQBPAbzuaWdZn1cdlymAeRPARwCXI4oTynMAfh2ABm/rj4nAWXVcpgDmnwDOtoBHcR4DuDMAmDTBWWgfgCMD2Stppuq4aALzbwCrAXwH8LVlhgyFPu4gGmK2DO3ec7D/W5KqgrariIsWMJnfcbZaD4Bg7BcUO3zv7oCzpWeFfhwYKD0oyF%2Br6SriogVMVpfXAJwC8BnAhwQYzAevO5BLiE8fjk0k1wz7X01cNIDpq8szAK4IKTsNYFPBXJC56/sMf4RuF3%2BtmrhoAJPL%2BAWXLz4RSlcanNICC7uZ/Vo1cdEApjSnDFV665b%2BUgUKC4iTALZkozHuB9XERQOYDCafHAgkJx7Mt4462%2BsAPHJLM2fDNQA2A3jRUf1L2iiFod%2B2ov3/3E4FN/9TBwkSnycRl7HA3AvgN6cqAeHzzv37l6DSlgjAmdhvlrM97ncyj/0EgCnDMwC7Oqp/SRslwGRawxk7LL748z%2BusS7NJD5PIi5jgRluzfC4kceJsZOdNuFTAnBP9IED0NvgN7eCgomV95uOAqqtDc5mBHyR52Gin5zNOTAPRQYn/bmf2K0YMy6LxKP1m7HB5OzA4icmRFdHJQJw66k5AHLaSbUxqBAAuMS%2BaoHP/y41gFM%2Bc8BOIi5jg8kq8rBgM70JQUqA5vu%2B8s/pb24bfUH1Psa2zbpm0rDdXJ/VxiVHqL6Bj32/SOFDO7kb4Mwn%2BewWdoIz1O%2BZBZnQdOtrjAXz7Zgm0gFcTVzGBrOZ90nFJWjMTaXbRWwntQyGbbPY4LIvBVnqdyo9YQEY252g/88F/lQTlzHB9Cc%2BOcB4YZkr8bKH5A6mr2h5ayjcwG/mWyE0XOJ4oSTMx8J8tUTxEx7Lhr74HQUWh6n%2BjhmXIQbn/zbGBHPRwofOd1204LK3NThHjy2DFHtbh9ClLkJ0icdlmLNiczB4/08IVohq4jImmNK8qU1MCsnbSLHCyC%2BJzBV3uMrfz5iSy8VttgedFRrG/P5l2CdfnPBVqVZVxEXa2RKCLFr4hMt57N4mBd7pNuy/uFmGVe0vAPgznxsdN4f4/dqWZbxEHEKb4Z1U/j9PpphLt%2BWeMX9oY/JxGRPMtpxKKn6pypkD5rySK28%2BD/dXAiWxqSIuY4HpA56z4R0TxZ97p4oCiaB8h0vnN0XX3XLyy7CPk4/LMsFkQbHR5YUEgOfUORc32uDi0sUlr%2B/f/XCwMAWIVeJSsBd9r1mw0Y6vxpl%2BxHLpVFuTjssywQz34pigc5brC1OYb/YFqmv7KAVB3983z8EJ5VVntM9N%2BiH6NISN7PgsE0xfVHB/8KWi5TI7aAU%2B8LGh6VUANrg/L%2Bkq0gq4ocfkMsHU02vzRH0EDEz1Es3TQQNznrqr77WBqV6ieTpoYM5Td/W9NjDVSzRPBw3MeequvtcGpnqJ5umggTlP3dX32sBUL9E8HfwJoHFBQMBkVwcAAAAASUVORK5CYII=" data-latex="{f}^{'}(x)={g}^{'}(x)">则一定有_________
A:f(x)=g(x)
B:f(x)=g(x)+c
C:<img class="kfformula" src="data:image/png;base64,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" data-latex="{[\int {f(x)dx}]}^{'}={[\int {g(x)dx}]}^{'}">
D:<img class="kfformula" src="data:image/png;base64,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" data-latex="\int {f(x)dx=\int {g(x)dx}}">
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
函数<img class="kfformula" src="data:image/png;base64,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" data-latex="y=\sqrt {4-x}+sin\sqrt {x}">的定义域是
A:<img class="kfformula" src="data:image/png;base64,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" data-latex="0<x\leq 4">
B:<img class="kfformula" src="data:image/png;base64,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" data-latex="0\leq x\leq 4">
C: 0<x<4
D:<img class="kfformula" src="data:image/png;base64,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" data-latex="0\leq x<4">
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,iVBORw0KGgoAAAANSUhEUgAAAPYAAAA8CAYAAABVYUcaAAAI/0lEQVR4Xu1dOexvQxT+XisKCkJF6D2vEEvsNC/2CiGWWKJDqIh4CiqCTiyxhKCyR2MNCaKwFCprZykoREs+mSPj5t47c+bOvXfe/X3TiN9/5sycb+abOefMmfv2QEUICIHNIbBncxpJISEgBCBiaxEIgQ0iIGJvcFKlkhAQsbUGhMAGERCxNzipUkkIiNhaA0JggwiI2BucVKkkBERsrQEhsEEEROwNTqpUEgIittaAENggAq0S+zoAtwH4EsABAD9uEHupJARmQ6BFYl8K4BkAJwJ4GsBXgeSzgSDBQmBrCLRIbJ7SHwB4JJzYJDlPbxUhIAQyEWiN2DylvwCwL5A6Uw1VEwJCIEagNWLzlKZ/fZimSQgIgXIEWiM2g2Q0xelnqwgBIVCIQEvEPhbADwDuC5HwQpXczf4GBp+vng5gP4C73VL/3+B+AG8D+HiinF1oLswrzHJLxKYJzij4OSF4VkG9pIgrALw4QGwusDsAXJaUkq5gsh4SuUfBEubptZRVoyViM/p9LYDDAfyRNfrplZ4H8A2AB3pE8W9vAnhpejf/SuAmciGAqyvJ26IYYV5pVlsitiWh0CRfqjwM4Paezm4IJKxxWsfiXwmbxVMOBW8FcCWAkwF8D+B4R9uWqj4O4AgAv4WEo+5m2hLmLeFWNJZWiG3+9YcAznZqwgXhKT8DeCvRgAR8ueJpbd3x1L680Lz/DsDXhW09+MxRlzEG6s5NidgyONpdey1iPgcWi8hshdjmX5cEzngSsNwU/vvEAHInhFOPf795BF36ec/OeDKSoHQ5PIE0jumj4DJMDeQtsrA6nTBAabj3bVAtYr4GTtX6bIXY5l9fH9JJvQpaEOxdAOePNP40LLAxU5im70kz+sL0Iz8H8KhDSY6Jd/w0yWv5/I7uJ1W1uWH24JDOLWI+Sem1G7dCbN5d752QcUZT766ME42n+2cAxohdQjzPPJYsYo7pqpFrOU//S9e1uWHgcMgFahFzw+mdxGGxNJ5Z/bVAbGaZ/R5GWzoe89tuTJCWxH4uYQbnnOpZ4A5UYkyAbsMpDiE0X3nHP2aNOMQtWnXIp44H0SLmNj6OzTNXi4I71FkpkWoOnsGy98MrLuaKlxT6cCwpfUjsMf+aMsYSVmxs9AmvCf9zHIA3gpnJ0/jI4Mu/N3CNluqDMi4KEfBDwj07r90YRe7zr6eOpQRvTxsSg2WMHDmYU8YUXXP76Oo2hdgc7y1B4F8AOJ+POeMrHqz/q5siQpFQZyO+t743BKwYRPOWC8IVEk3s7uLpEpl1UxHxnAXAU8iSTax/+pDfBvk0384b2WiG+qBJelR0MnNhPBg2iiH/eupYvHjn1Ccm94SKvKZj4fywMFbQjRPkYM62U3TN7aMWsS22EFuRNRNwRuehBWK/CuCSCamk9K3px/VFu0kUb0JIagFws3its0GwzQtRXzSdPxnpu68P0+OMzo4+5l9PGQsXXulz2NdHrJF4wdnipqXRlwRkdVOYs94UXdk+p48+spSc2EN6UxY3utl5N3sHGds7E1OOmZBKagu/b2dkMkTK9O4OMbUAulaATaInYt3tw66z4s3BxjVmytYYS8YUFVexzSqFTQpzI3Y8l17cc/qoRWxu7Fx7XQuSv/Pmxrsm3ROwNrHjwFlpKinBop9rph5BYIYTf0sF0/oA8y4Ai/p6sOz2YTL6CBDfAacmuGQsKZlT/p4bzfdizjF5dS3pg/14T2zbzMau96ZgmtXWsxizBDorWeDsJwAlqaR20vWlWpLwJemX3gQS+tMsuRFr85vj3XzIRGME/UnHBuUdi3O63NVzAmcU6sWcbTy69mEeK0Pf/egB7Wg6x4dGXO3PnnlPxVfcIJY0WJvYFjijz1ryBtsSN/pM2JwIeB9mnBi++MrN5+ZJkPIh435IVp7M8UZAGUPBP16N5c6Tdywla8bTpht7GGrrxZxyPLr2YZ6rh/fEHjLDc/urUi93wVTprEeIZZzxIQajpd5C8nLh95k9lrBSIpP+UU7qpp2o3eSLsU2FJiRdhdjPGjK34xMv9U7ZO5a5g2e5gTPOD/HKxZz1vbr2YZ67LrzE9rhOuWNw11ub2JZxVvoG20zYsawmLyhjDzXoM54amfh9PiSvek4b2Rj6Hjv0BVXsGs2i/bROfomuimqMxYuNp35u4IwyU49jpuo65YGJl9i0PvjQqO82Zmeuu3ITS4YW1NT2Q3KH/PPYZOYknRmCOLax5Excn2yS4OIoimqnM383Ynev7mqMxUNUb93cwJnJHYuJTNW1NN7CsXmJbdZE99rS3uNvPkHFvkha8lQzNsd4D1773TRNQ17Dde9eSbRzgz/MgB398DhTjOMaS1llewYJ+6474vfKZpZyMTCyz76YyRYndkwdi5eo3vq5gTOTO4Q5/z5F1zHMc3TyEpsyu2uCv/Wtp5z+i+qsaYrbU02++ClJlLATIfUMswSYVBS1RKbt/ncukVJYOsCK7by+ZquYlxC7IoxlotYktkXEedry1M0t9GEODRk81sauI2om61ved04QLWfsDOD86nyumSO3xTre5BHToUXM6Z/Xtghnn7M1ic1/7eOshb9x5gWU5mHXBPbKYH0udJrws2cclQyuUhsSgB+zYO4ANzHmypdstMK8woSsSWz6HPxoYemLrgrqZ4kovQ+PhdeQkTXYFSvR9LYPXTBYRUun9KMQNfCqIWNFOKd1vRaxLZWUnyAqedE1TWu1ngMBC1Lxjp7WmOcLMXOMZ6dlrkVsSyUt/RTSTk+alBcCKQTWIrYFzkoffqT00t+FwE4jsBaxaarRHG/dv97pxSHlD14E1iI2Ay2l+eEHL9oauRBYCIGliM2XW7yjpE/NU5pXIzLDF5pkdbN7CCxFbPrUzC5j0IyvuGiK8zcVISAEZkBgKWIzP5qE5id094W310v9w3szwCaRQqBtBJYitqFAM5xPNVWEgBCYEYGliT2jKhItBISAISBiay0IgQ0iIGJvcFKlkhAQsbUGhMAGERCxNzipUkkIiNhaA0JggwiI2BucVKkkBERsrQEhsEEEROwNTqpUEgIittaAENggAv8AzGQWW4zaA8IAAAAASUVORK5CYII=" data-latex="\int {{F}^{'}}(x)dx=f(x)+c">
C:<img class="kfformula" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAANkAAAA8CAYAAADrNx9HAAAHzUlEQVR4Xu1due+1QxR+vlYUFERH6C2FWGKnEXuF+GKJpUWoKFBQEbSWWEJQ2fM11pAgCkuhsnaWgv+APMmc5M2Y+945M++8M/f+nrf58t07c2bmOeeZOefMee/vEPQIASHQFIFDTaVLuBAQAhDJZARCoDECIlljgCVeCIhksgEh0BgBkawxwBIvBEQy2YAQaIyASNYYYIkXAiKZbEAINEZAJGsMsMQLAZFMNiAEGiMwKsluBXAPgG8BPAzg18Y4SLwQaIbAiCS7FsCLAE4H8AKA7wLhmoEgwUKgJQIjkoyn1ycAngonGQnHU02PENhJBEYjGU+vbwCcEQi2k6Bq0kJgisBoJOPpxXjsGKlJCOwLAqORjAkOuouMy/QIgb1AYCSSnQTgFwCPhIziWgD/C2x85ec8AJcDeLByMo8COALg80o5B7X7TuthJJLRTWQ28eKQ+FjDoG4A8NoGklGx9wG4boGJmKwnRDQ3mjuvh5FIxiziLQCOBfCPWxVlHV4B8AOAxxLd+d17AF4vE/2/XiT0lQAOLyRvdDG3Oyf4O4D391EPI5HMLpzpNq71PAng3sRgNBASYolTbCr+zUDc5x0LvBvAjQDOAvAzgFMcfXs2fSYMfmf499kNkzk1rI3f3xW1GUkPxViOQjKLxz4FcJFzNUvtmDEZ3ljwFDPZPM2uLyTvTwC+L+zrhHSx5uaOfwjgshmpXwIgyeLNh5vSaHpwgzMKySweK0l6LLFjToFjDPBSwxODZKFb7EmCcE6fBbe2NgnjNpKKDkz4PJAxb+rwq4hkI+qhCIpRSGbx2G2hpMq7mNodczoe3bMzG8ZOjPW+BvC0Y5GcE+8Q6TYuFSM6hi9uypOI1zF3JE6pqVCS7OVo4xlRD0VAjEIy3o2dVlHpUbNjxsCVkMADfonxcE43zVw1eMZfsy2vR/hsszOSLI7HRtRDEXbbFl8k1NmJ1R1/Zypjk+iaHTOWuSk+cC5rY3PGkEwGnO0QSBeTd4hzcY1D3CpNrwhJHrqB8VpjUrFtnFkcUQ9FwI1AMiY6Pg7V9qxdLHlqdsx4vLnLaWvLeOHm8J+TAbwb3D+eUseHbNlHG64G2G1uDMq4KmQSjwr3eLxK4DVDKh6rnUsJ3jl9GIvRw0hlDXlKbbvK6K2HnDVmtRmBZHxf7KGQbGACxPvU7pglJOPJaRfLNj7fFPgx7MgfALh0xk3aZEA0vhMmJxYJ9Hgg7aZ4rHYuXrxz25uLO43H7GL5r4R7OJIecteY1W4Ekr0F4JqKcqraHdOrXLo6b0fuDUnz6mR3pnv3xcxunSKZreP8KAEwF4/VzIXJotJXiN6ZOaUNT2LAU57uoj3Hhc+2JUK2nfb8vmbtNp+c0zKLSHONRiAZL6FPrCinqt0xS0g2DdIts+nJ/MXKtRT9lKg2L8YmfFIxXBzblMyl2ogSAmw9qctzki/nQn0bAZZY+7YxFsGmN8mmSY/ScqraHdNLsri9ZTY9WMbKNRkporJtKq5JGUDJXBYxpEiIXTmkNo1UJjE1By8BStbuHaMIK49hFA2wpZMlPX4DUFJOtcSOGU/Re1nM+ItPbubP4qzpycTTimVTsT6YiXwu457J1uCdSwudmivHDCrd0fg+0C6nt43dQw/b5lT0fW+SWdKDMU7JO2RL7JgxcDRUVubn1hdyN2TWL1VknFIKicMTa0pKytiU6qax5urJO5cio8noZJsG6z9TRb8ZItBDDznzcrfJVZ5bcGYHq/RgkS4rGrwPXY/aHTMekzKZ/copX7KTJjamOZeIbg0TANO4bpNLOI3Htr1T5Z1Ly8RH7pXKnL576MFrf1nte5PMKj1K3yFbYseMgZor4mWS5ZxJ4J7K/DGlf+4MSVNFr3SNWEQ7JZ5dDVg8xlP7j0lZ1RJzyTISZyMjO7PGNW8x9NCDc6l5zXuTrHbHq+2/CaVNGbCpW8eT5YJw4WonWc4LhinZjFOunmQQ7dTi50ay+AJ3ibnkWYmvlW08ucmaOelr68G30szWPUlmv0xV8noLl7fUjpmCiq4KrxbiOItGf0mIn5ieZtw2rdCgrLjQdSqf/Zngiev02IZj0o2kq2ruKndz3ilxLFaQTIuDa+eSaSLZzRhDHR0SONbJ7sg8JWTTAXvoIXvBuQ17ksxeb2H2qeRSdMkdM8YrlQHMxXSuHd3b+52vuSwx7q7K2As99CSZZRbpt9N/z31a7Jipsa0OMScBkjN3Jjz+dL7ikiN339vsvB56koy/Enzhyr/p4TVIuiuxm+aVwfZ0++hmptzEEnkHrc9O66EnyRjz8AdzSivv1zK03AqFufksIWOt9Y46zhIYLiHDjU8vklk5FV/zL6m8dy9UHYRALwR6kczKqUp/bqAXXhpXCLgR6EUyS3qUFgW7F6oOQqAXAr1IxqQHXcbR47FeetG4e4RAL5KxWqG0XnGP4NdSDgICa5GMFfa872AMxtOL9XtyFQ+ChWmN2a9Q1ELFGIxVHUx4sNqe7iI/0yME9h6BtU4y1uuRXPxZM/4VTZ5sa/1Rib1XohY4NgJrkcxQoKvI11v0CIEDg8DaJDswwGqhQsAQEMlkC0KgMQIiWWOAJV4IiGSyASHQGAGRrDHAEi8ERDLZgBBojIBI1hhgiRcCIplsQAg0RkAkawywxAsBkUw2IAQaI/Af/Q/uTBVVku8AAAAASUVORK5CYII=" data-latex="\int {{F}^{'}}(x)dx=F(x)">
D:<img class="kfformula" src="data:image/png;base64,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" data-latex="\frac {d} {dx}(\int {f(x)dx})=f(x)">
<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/shuxfxfs/20061001/41b0b9f8.JPG" />
A:A
B:B
C:C
D:D
当<img class="kfformula" src="data:image/png;base64,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" data-latex="x\to 1">时,1-x是比<img class="kfformula" src="data:image/png;base64,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" data-latex="1-{x}^{2}">( )
A:高阶无穷小
B:低阶无穷小
C:等价无穷小
D:同阶但不等价无穷小
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 )">
求<img class="kfformula" src="data:image/png;base64,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" data-latex="{^{lim}_{x\to 0}\frac {1-cosx} {{x}^{2}}}=(\, \, \, )">
A:0
B:1
C:2
D:<img class="kfformula" src="data:image/png;base64,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" data-latex="\frac {1} {2}">
题面见图片<img height="80" alt="" width="372" src="http://file.open.com.cn/ItemDB/11174/711b5348-87dd-40c6-9fec-4b6c3c8199d0/200949172527917.JPG" />
A:A
B:B
C:C
D:D
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,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" 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">
<img class="kfformula" src="data:image/png;base64,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" data-latex="\int {\frac {{x}^{2}+1} {{x(x-1)}^{2}}}dx=(\, \, )\, ">
A:<img class="kfformula" src="data:image/png;base64,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" data-latex="ln\left | {x} \right |-\frac {2} {x-1}">
B:<img class="kfformula" src="data:image/png;base64,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" data-latex="ln\left | {x} \right |-\frac {2} {x-1}+c">
C:<img class="kfformula" src="data:image/png;base64,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" data-latex="-\frac {2} {x-1}+c">
D:<img class="kfformula" src="data:image/png;base64,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" data-latex="ln\left | {x} \right |+c">
<img class="kfformula" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAIkAAAA1CAYAAAB1LMjHAAAD30lEQVR4Xu2avc9MQRSHn7eVKKmFv0EoSEQ0goQKiUQhlD5CRaOhImh9FBKCSiJEg0IURKdQIUqhFFryS+7IZLPvzp1773ytc6vd7Hyc+c1zzzlzZlewxxQIKLBiCpkCIQUMkpBC9jsGiUEQVMAgCUpkDQwSYyCogEESlMgaGCTGQFABgyQokTUwSIyBoAIGSVAia2CQpGPgD/yrQ/mf082YaGSDJI2wh4AHHST+5zSzJR7VIEkj8D3gI3AZ8D+nmS3xqAZJGoGvAWe6of3PaWZLPKpBsrrAp4AdwH7gurfpibekvuENktX35DFwoPu56cRzLHalINkG7AYujF1Awv6LTieXgOfAm4TzVzN0CUgEyFnvLa1GjFUMUdhRuPG1cmu4+j+AUgISZftPgYe10wEsOr7qt73AkQbWMcrE3JAc64R1sX6U8Yk7C4LTwFZA3uTGnPmUtwj4O4ltKTp8bkgk6qNKvIg82g9gHfAeOAk88U4xykn8Z55WAulgQ6FzEGw5IVEcvwtsGmTptJ0EiCqizwAHg5JoJaSxmnwGji5zbhIryJitksvenCCGq1ilsBB6DnsezC9wOUiUX6wd4OUEnDzRvHAUsqmJ33NCUqOY7uRyfwS8qeCvBqCckLwFblWW5ClHUkXV9zKxm6Nk/HiX4Mb2baJ9Tkhiq5Z7us2TkL+BNRMenfX2f+rG0/hOh/PdpVzs5sWuzY3vTlCx86m9kmxdICZ/aoVEm6U3VCcOJZfukTfSkXTso0390g3yocsp9PXXwNxiKCRj15Glf42QCBCdMuaFgKkgmVpcg2QiRfsIqRCj4tS8RLLmmkSftU0kY/5havMkN7sk0PciCjtbgI3AxUrrEQbJROz2KTopnAgInYLc8w74NpObTGTSJMOoSHhlYK5kievMFrzoqpyL7jn0Rr4Edk2yfXkGkaeT52vJ5ihlcoYbhRLdlSz6D4kgkRc5EbWKso2VZOv+pyWboxTLCUmfxFPe5ueCCzNX3/CPxVELTtC4pkvLBMuLv8waa4TykkUXfHLdt4HtMwmqK6zV+D+U0JrGala8f05PosUq5HwNVArlLfZ5xS71U5/XFZ5sVNPZsMyhRuLnhmTMSaD4GzXHAJ3GzlUI76Ra5YZExstTrK/8T9B9RFbC+n1gGb/P+NW0KQGJCzuvBvx3oxbhlITvXPYw48QuBYkDpdVjo3KrVm2PftFKQhJtrHUoo4BBUkb3pmY1SJrarjLGGiRldG9qVoOkqe0qY6xBUkb3pmY1SJrarjLGGiRldG9qVoOkqe0qY6xBUkb3pmY1SJrarjLGGiRldG9q1r/oo5c2Gjt2wgAAAABJRU5ErkJggg==" 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,iVBORw0KGgoAAAANSUhEUgAAAMYAAAAzCAYAAADMxHf3AAAGQklEQVR4Xu2cOcx2QxTH/18rlLaKoNKoxBJE0AgSKoRQCKUlVDQaKoLWUhCCSmzRoECCqChUttJSWlrykzsyme/e5zkzd56Z+5hzu/d7594553/Of84273dC/jgCjsBJCJxwTBwBR+BkBJwY7hWOwAwCTgx3C0fAieE+4AjYEPCIYcPJVw2GgBNjMIO7ujYEnBg2nHzVYAg4MQYzuKtrQ8CJYcPJVw2GgBNjMIO7ujYEnBg2nHzVYAg4MQYzuKtrQ8CJYcPJV/VD4AFJV0u6WdKzkh5qIYoTowXKvscaBN6SdMv0gb8lNfHZJpskqFwh6XpJj61By9/dicCrki6QdImkLyVdGq1+QtIHkj47EgxjMvxviQEpHo5OgCOxzVGJ+YykDyW9H52yr0m6c/o52ODpIyIHopNSkUo1OcybbBK5FSfZe5LeOCpXOy5hwTiQYMmhbpN0Y7Juy1oi7+utSAEQLYlxz2SMkC9u2RDHLBvpxoOSnouUmEtByN05pF7auLKQAn1IB4kasV4HE70lMTDEm52iBXn1n5IulHSWpI8lPXkwVO0fJuW5zr7ctDJ1nqUUBIe7dSNpLVHuN0mnS/pK0v2S3pk6UJA6fpr4bJNNJJHXvizpfJNp6y6CkHE+HWT58QBOmSN5q5wZx1pqc34v6e7OtQakIE2iJgokoDHDYdbKP0+yW6uNcYKLO+S0j0r6OipEAwCkdS9KekHSfTneXGkt5Hxq6hod0gYU4ufuiAo4JSd0jfSEvUh59j23J1kD74XZRCAG9c9pnbKLf+U/pFFigGoaYB/w6b5xIRr/jtOSJzeK1Uh/OA1/PXCXhcMIUuwaiPU6sOZsGCJo3EHLsXXVta2I8cV0Orcu9DiB0j5+ABCZ6PPnYsB78Vwg1yBEq1Ml/TFFrdz9LfulpKCemOsEIsu9K/WxyGNZQ8rLdDuNKJZ3q685hFHmhGw2mEk2Jyos1RK9iPH8lL6FdG6fDUi77pr0Ok/Su1Pqg/OfMZE7bibcMA334vSIlHKp2bDPNnwPZ+X5S9IplVvu6PHd9M04i9klc3UipB/cZ5RaAuwDv9Y+Od9Bpo8KCvA1ESOueazEiJsHOCktVnJ5nImCldTu2ijypV2cgMmSrXfZBnmRky5RGBjyvTUYpDZi/x+mf/xmqnn4kS5ijdonxyf+WzsqMTA4eX5J2C51Cpz6oujkthCD6PJ24pQ4UpyHExU/X9HYWCLGLoxKMShy0h4vjUgMUpNPp7taJbOMUqeAiPH9MCsx4q5ZmACXEHrJv+aIESLTXCG8pfnHwTizNWKEzkSJwrT44nC/9A1SE4ZJpW3aEmKg1y9JAWwhRqoD5OIkr2m3OWIQqSjKYwIiL80K6pzHO88+Svwj652aAO/aeAuDJOSjbfytYeoNec5eUCjcWJ37NZ2mdJJNhLpqZs8SYlBP8NSalod5StplC40J5jzhobv3s/HwyXLCLS5uRQwMynSzdbs2xpyTlqckfYq/kxsxOOXPmTo68Xe4/kB7MjgfjrcPH0530rG1OgQ5ICdRISVaaWNiiz5eJFMrYhCaSV96/Q3GEilKWoK5xFgyTG7ECOvTlDG0f0scANJC0DSthBi9bgWU6FH9nVbE6Fmw4VBnLpyyaUFsAbgVMUj7Losm8/x8R1JfUCRfvuLAWbrYSYT/fcdVkjB7sNR0Fkw3t6YVMVCcOiP3+sVawMKVZfrjcw+nZe41+FrE2HeJMJ7ahzoFIoeIUeOPvpZsEqLTlUmRHYZ9//u/qWlJDEL+TxXzYwtploZd4d2SdGEtMUJ3h64PD0NGBlzpvII075rpSgu/p/6ATDdFA7FXVnSH+D53qZa6c+leyIr9Plmxp8Vmm1jTkhhLHZBNAJEhxFpiZGx10KXo8cgITl6CYktiIF+439OrCC/BKH0n/l8ranyvxzfC7d5uVy56KJ2zZ2tiIBspFZfe/O++cyxVby11Fyla6YCzniQb/lIPYgRyuGH6OMaa9m4fiTvs2osYHVT1LR0BOwJODDtWvnIgBJwYAxnbVbUj4MSwY+UrB0LAiTGQsV1VOwJODDtWvnIgBJwYAxnbVbUj4MSwY+UrB0LAiTGQsV1VOwJODDtWvnIgBJwYAxnbVbUj4MSwY+UrB0LgH/fSIENjAC2hAAAAAElFTkSuQmCC" data-latex="(-2+4{x}^{2}){e}^{{-x}^{2}}">
函数<img class="kfformula" src="data:image/png;base64,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" data-latex="f(x)={x}^{3}-3x">的极小值为( )
A:0
B:1
C:-2
D:3
<img class="kfformula" src="data:image/png;base64,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" data-latex="y={x}^{2}+1">在[-1,1]上的最小值为( )
A:0
B:1
C:2
D:3
函数f(x)在点<img class="kfformula" src="data:image/png;base64,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" data-latex="x={x}_{0}">处连续是f(x)在<img class="kfformula" src="data:image/png;base64,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" data-latex="x={x}_{0}">处可导的( )
A:必要条件
B:充分条件
C:充分必要条件
D:既非充分条件又非必要条件
设<img class="kfformula" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAPMAAAA8CAYAAACzSIxeAAAInklEQVR4Xu1dOcgmRRB9m2qigaKRZ6xuIB54ayLekYrigQdmKhopi7uBRgqaiQceKGrkjYknu6Bi4BF7goFHoIGYKk+6oG16eqp7Zr6Zb7434ff3dFe9rtddVV09/x7oEQJCYBUI7FmFFlJCCAgBiMwyAiGwEgRE5pVMpNQQAiKzbEAIrAQBkXklEyk1hIDILBsQAitBQGReyURKDSEgMssGhMBKEBCZVzKRUkMIiMyyASGwEgSWSuZbANwD4CsA+wH8uBK8pYYQmAyBJZL5agDPAzgNwHMAvg7EngwEdSwE1oDAEsnM3fhjAI+HnZnE5i6tRwgIgQICSyMzd+MvAewNRNbkCQEh4ERgaWTmbsx4+Qin/GomBIRAQGBpZGaii24242Y9QkAIVCCwJDIfD+AHAAdCBrtCjeqm5wC4FMCD1W/+/4WHAbwH4NDAfvS6EBiMwJLITPea2esLQwJssHIdHZDI9wG4ZoQBrK/HROgR0FQXgxBYEpmZtb4ZwJEA/hykVfnllwC8A+DVkca4DsDlAG4cqT91IwSaEFgSma0whO526/MUgKMA/B4KTR5JOrotEG+MXTnu+vWwQDxbIfjdAK4HcAaA7wGcVPHutjSNdfwcwJnbIvg2yrkUMlu8/AmACxqBZPzKXZKkILmYREv14++vjbgrm6gc99pG1/07AN80vtsI1cZf+wfA0wDu3PjIOzTgUshs8fKQ5FdsMDmCML59YcIdkGMyTKhJhlGmgwDoQQxNxi3VbLnQvQLgdgA1nstS9VmsXEshs8XLt4ZSzlrAzGBYKfZEx8t0+U6fMLZlLP5FYfycWJSJZ+t0t8eK4Wuxm7o9PaYHAJxbudBNLdfq+l8KmXm2fOqAyi8zGCai3u2YpRay1Ux4y2JBmW7IhAM14y697fsATpjQI5pCf8p8yRQdT9nnEsjMaq8/gpKt8nTFyDF2n4W4bSpXj8m1OyqTPHTNeba+dYZTYZQMf97YspwAbWXrknWt5KmYy96mTHh9FG5HsTa75SH4fEoTQKPq05cx7E2hrxMBvB3cZu66R4fM84chxs3JWRqDfVwRMteHhTiSR2Rd8fJQWVpwLL3TIs9lIcvPfEB6ssCx6JnYw6M9jnEXgL8BEKOTQxjSFYK0yOTBZQiZTQeOY3o8uYkQo8+4PYoPbcP7yg+F5BQTYd6HhrIvNObxDh8ef/BhHJoagIfM3OGtAMQMkXH4t8F9p/t1cWFR6BqDRntMtANzwh8Ni0NXvDxUFi+O3nYt8jBWZgiUC3/4N15vZVhE3Eh2Hiu+GBk+cTur4KK3yOTRt5XMuWTfmEVKRdmXQGa6YFcNKOM0ALtWfwOgj8w8o34zibn5zstR0oxu8aeFJFpuDDPoNAFUipeHyEI8Wq+MvtWxg7bKUwp/SHLOmS2aPGtPTwM4LkOXnJ22yjQVmbvskAsDN5vJuTb5AA7kWCxy3IAyTiNLX0bYQ+b4HNQmp6/fWMV0DDt6ihcEa18KDWioQ2VxQO9u0ipPKSfAsIMnD5bRz51ElBaDVpk8SrfszNSVxUppqMffP9jEGfvcZI6TX61lnN6McB+Z00m2DHkNRukY1kduQagppGiRxWO0rW088thC1lcsUpq/muSZRyavvrVktg2ldDTqHbu5XY2hNg9SeNGSXz8BaC3j9CS/KEJtUQfjYz7eTLPFwfHK3OViMfP9TEUhRa0sU8xV3KdHHttx+4pFunZvb/hkcnlkinXgrn9sB1B0iy3/kjb5K2MTfbmUqefjv/7nJrMlvxirtt5hTuPaLuAIOCuRvEdT7LcvDo/HIkG5A8fkZx+5muRSLJiTv1aWqY3HI4/HYypVwNn73mITj0xeXGp35i4X2zveKO3mJrNVft0bMtC1StWs3iQQYxpP2aTtnGkWNo3TYnnp5jEbG8e6Xa507E303a2ulWWKBFi6aNGr6MMm9ZjoiqbHU6UKOGLHWNMWR0uY5WykFqM+O6slc03I1Dd289/nJrNVfrXeYfYmvwhQ6TJEegSS21WYdT27sBjkLnHkkh+WvbVYkgb9a3SUNoYszQaRebFVntRjypG5a/dOj3jsPNkWylaZvLjUkple3y8dpxw7czTFCR/i7ntcuXgCSa7cVcPYHSb45yXno54JyfVNA74yynDaLszfjczUIb4LPYYsXqP1tGuVJ96tSM6fM4UTffGybTbEKC68aJXJoy/b1JLZPIM0JLC77qsvGrEvcQ659uhNftkk0k3mUVjq7pFcF4X4luedjKvjii2+HxczpEbB95nAy13xi+9Ym5vPSWZiiGOxoiwucBkqi9dgve1a5bEcAvWz4pB0TJKyKwNs1WGHZ66ttsrk1bmWzOw3tRf+lrM1rwzV7eZ0s+3aI88aW4scamOVXMa5GrTMC5z8+zdRsjeGsOqjF4EWMvd2OnWDOclsmWx+9YNVYLVPS1GHraCss/YkwjwyMTHzW+XVR0+/ajMfAsx/jP01msm1mZPM/K8V51d+84sgnxLiXpKIddItt1vo+qbubQvYXFDonusLGi3o6Z1REZiTzIwn+OG+mptS8XEFkyfcXVsv9ZeOmbwgj9GHdyy1EwJFBOYis5Vx8jM+NTelLNHE81zu7F1fFdG0C4GdQ2AuMlsZZ+tngnZuoqSwEOhDYC4yW/Kr9XJFn176uxDYOQTmIjNdZLraNfHyzk2OFBYCNQjMRWYmslrrsWv0U1shsDMIbIrMvBHFChnGyNyNecQkF3tnzEyKbgKBTZGZMTKrvJj44ve56GbzNz1CQAiMhMCmyMy6ZZKYn5XdG+4uT/nP4UaCR90Ige1BYFNkNkToYvPaox4hIARGRmDTZB5ZfHUnBISAISAyyxaEwEoQEJlXMpFSQwiIzLIBIbASBETmlUyk1BACIrNsQAisBAGReSUTKTWEgMgsGxACK0FAZF7JREoNISAyywaEwEoQ+BfBaBhbHhynpgAAAABJRU5ErkJggg==" data-latex="\int {f(x)dx=xlnx+c}">,则f(x)=( )
A:lnx+1
B:lnx
C:x
D:xlnx
极限<img class="kfformula" src="data:image/png;base64,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" 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}-12x+8">在区间(-10,10)内满足()
A:单调上升
B:先单调下降再单调上升
C:先单调上升再单调下降
D:单调下降
<img class="kfformula" src="data:image/png;base64,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" data-latex="f(x)={x}^{3}-3x">单调递减区间为( )
A:<img class="kfformula" src="data:image/png;base64,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" data-latex="(-\infty ,+\infty )">
B:(-1,1)
C:<img class="kfformula" src="data:image/png;base64,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" data-latex="(1,+\infty )">
D:<img class="kfformula" src="data:image/png;base64,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" data-latex="(-\infty ,-1)">
<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/shuxfxfs/20061001/7a04334b.JPG" />
A:A
B:B
C:C
D:D
设函数<img class="kfformula" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAALwAAAAxCAYAAABgZ8OtAAAGGUlEQVR4Xu2bO8x%2BQxDGn39Ljdatk2hEXIIIGkFQIYTCJTqEipqKuFTiT0EIKvdo3BISRKV3q6lpyS85I2vtec/unj37nvOdOc13eXfnzDzz7OzszL6n5I8jsCMETu3IVjfVEZAT3kmwKwSc8LtytxvrhHcO7AoBJ/yu3O3GOuGdA7tCwAm/K3e7sU5458CuEHDC78rdbqwT3jmwKwSc8LtytxvrhHcO7AoBJ/x63H2VpBslPdVQpTclXSjpMknfS7q8oey5op6W9Kmkb%2BYKKpnvhC9Ba7mxkP1xSbc3fMXzkj6T9Mkg829Jb0m6p%2BE75ogym5/rSXon/ByXtZtLJP5Y0jvtRAqZIbkfkfSCtKoLg3dKurnnInTCN2RYpaj7B6e3jO6oQkR/VNKLgV78b20%2Bf29Y7K9V4lc0bW3GFyl/pMGkCedJuqDR%2B3H4u42jO6oR0UOy94zwpCuXSLpL0mlJh8hMlL%2BjcTo36honfDlrf5b0baNtGGK83nDxHLKG6E5K81i5yUUzCAi/SPpC0tuSHpggPMLB9L4eubwTvsiXzQcTdS9ttHgOKccB9txeUTRKoXIIz3njh2hHag42Ap3wi8CaLbSHo1lUkH3pyJ4yml0lh/C9Fr4TPpuaywz8LiPHnfPmmOzkyy0rQVO65RKeg/uDPfoEPSO8laDOHLavZyK0nhwi0UNTKDb%2B3PRC7F%2BSzkiUCCHORZLOkvRVYuslUttDKZDc/OFAHs0f8ueYbCVVE2TeO7zkfEkfDXqg29lDc4m82XC9aWg6hQdXMI5xbwznf8TlEp5JJVhU69yL8IB/qyTIzGp%2BNZFOYfD7nfNMyE7p7ongwBQ3gdD9yqEDmqp0QKIfhwYPNkAoFsYbgUwWxBWJw2mJk6nmWJMGnajbo/tPw7s5LF4f4Irs1NPL50binJTmxBH%2BlYAA/M72FQJvDqStHkcgI2XNqv5wIqJBEouUJp%2BWNyQ2/dDXdh1Id1ukO%2BPR22ygQhFXHFI2lziZ%2BR8EXVObG3ZOW1aParCek8OXYDFLt16r3UiBsinHQDDG0HWzVvgswzInW0QO768QxXksFTDdifxfJ9rzVu%2B26B83e5CVWiglTg4XHfMIApT8qHP3zMkzYf132G5TGkPAomC8zY0RohTg0vEcGrlYRVSmtv7lgZrx1KIkbbl7pPI1lq6VpDShbfEuVGp3ON4Wao2MqQC1e8KPOeoY%2BTsOtnydNMWeVFplOxM/xzqs7Fy/SrohYo5F45Tc2oYLqRhP/K4a0i45J5fw%2BOHZk1alAVgiKk94TfVQ/r6kM2LZ6PGSJCogcao3paOlO5w/4uu9FvmvTnQSIS6pSek9Eog0tjB7Yjb1rlzCU8ggPVt8AffK4Q0YAOBuRVh6tFRhLB9d4tBKTkxFI47WYxWkFGnDc4mlBSkbsPnzwJnhPPT4o/AOvOkYpxNxnj9Fxh6f5xIeTKhsLV6SXgPhj5G/xyQ057P4aPXHNxfjlAvSnRNUgMbyd0tn7MxitXRzbM7FqbikmXpXWDrtQeTcd%2BQSfqkLdP/TszfhSWmoG9s9bYvuYQTMBXPOuLCmbXJSNflwZzLSMo7fw%2B13Kn83nCHry1Fqw9xDNy8hjX1biQVzTVTRWuLLI3OwDefmEn4Kg1b6dL9aYKSC9HQ12c6t%2B9fyq21TAIVdSxuLLmNfOSNluXbQl/FhU4m/U3fPTa51Yekwp64Bk4r8dqBfAD7XDaSnmkS%2Bjz63DNWllD5T9i/5uXXMLx4qYLyLNJYnlbJ07bD3jvAx0FOlviUdsxbZ3SoUazE40oNdP%2Bx0L6pmT8KnDorHKkcuCmqFcLsP03OXq1Cz%2BRQOq7/3uBZsmvckfKpaQYRPleuaI7sBgQQELn%2BtuXPaEkbSW1K1xSszodI9CR9%2BqXgrrfGWDs6RtcbSYo7eNWOOYmtPwlsJ7s8BHRouPe/N1DjF55wwBHoS/oRB5%2BZsEQEn/Ba95jpXI%2BCEr4bOJ24RASf8Fr3mOlcj4ISvhs4nbhEBJ/wWveY6VyPghK%2BGziduEQEn/Ba95jpXI%2BCEr4bOJ24RASf8Fr3mOlcj4ISvhs4nbhGBfwCXaExBa0OE6QAAAABJRU5ErkJggg==" data-latex="y=sin({x}^{2}-1)">则dy=( )
A:<img class="kfformula" src="data:image/png;base64,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" data-latex="cox({x}^{2}-1)dx">
B:<img class="kfformula" src="data:image/png;base64,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" data-latex="-cos({x}^{2}-1)dx">
C:<img class="kfformula" src="data:image/png;base64,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" data-latex="2xcox({x}^{2}-1)dx">
D:<img class="kfformula" src="data:image/png;base64,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" data-latex="-2xcox({x}^{2}-1)dx">
<img class="kfformula" src="data:image/png;base64,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" data-latex="{^{lim}_{n\to \infty }\frac {n+1} {2n-3}}=(\, )">
A:0
B:<img class="kfformula" src="data:image/png;base64,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" data-latex="\frac {1} {2}">
C:1
D:2
函数<img class="kfformula" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAALsAAAA5CAYAAABu6Fq5AAAG3UlEQVR4Xu2cO%2BwvQxTHv7cWoaEW1KKRi4gIGvEIFUIohNIjVERJRdB6FIS4Ku9oEIUE0YgaUdNQqMmHmWRMdnceO7OP355tbv6/nTlzzvd8Z%2BbM2TP3jOwxBA6CwJmD2GlmGgIyshsJDoOAkf0wrjZDjezGgcMgYGQ/jKvNUCO7ceAwCBjZD%2BNqM9TIbhw4DAJG9sO42gw1shsHDoOAkf0wrh419G8p%2B%2BNiSdvNIWtk35xLqhX6VtJZSY9LeqVASgmBS9oWqLBMUyP7MjgvMco9kt4tWKW9TiUELmm7hM1FYxjZi%2BDadOO3Jd1nZB/30Z7Ifp2kWyQ904Byz0n6TNLXDWRtRQSr7geS7ipUqGS1LmlbqEb/5nshO0R/ssKRYwh6eS%2BeEOEhYhivPybpEvcbv58n6SJJ10i6OgAmJDC7w%2B%2Bu3feSHpX0kaQnXHsje/85KZzwiaRzDccixr1N0v0NZa4l6laHT7h4cWCF1PGKHxPW/w3GxPyfuj7Ywi7KLujlGtkbePhVt5qwqvwq6flA5kOOlKXbc45a7zuSvJHTeMNtXnIreEh2VnayMiFBhyaFf4%2BMcAXHXBaD84NFxsg%2BkwSsHKyyl0mCfHdGhyx%2Be6/xqu5VZty7G4ZHM6Go7v6zCz/C8ARhT0crc/w3bWICM0lelvTOwK5nZK920X8dAfA1SY9Iwmk/BuQjtn7TTYSZw4x2Z8wHdx67gyEhx19Rjp1QhsdPAmxlFwvbxQT2C869AwuMkX0GC31ueOxDCKvMVZ3jamJVDmMlH2JmmNylaxh3h2cQPwl8WDgWshD%2BgPVPLqxDSR8SsRvE/bsY0Vvo2tkYQhjAJDbkYBQ/SxBxiQnV24%2Bs2GRNvotW43glHmrn2/DvL05RdlcWAJ6pXaC3XU3lr032oRg9NJBtmBCn5wGSA/DDUTquKcgbF1YSmpS03ZzZa5M9jiljgHLBJbZ/wHW%2BVNLHLixh1b7Y1Yx8GWV5wrFyx9mcAxsoVGJ7SdsGqrUVsQbZSX8968ygcImH7ZeHLECYS88Flx3CfyDy6TXOAcSghEefS7pp4lN67jht0d%2BGtBLbS9puw7pAizXI7of3h1OyCGFevXTFJUf/YRTz45QwdUas%2Bs3EQXfMiejIpKl5iKHH7KqRZ31mIrAm2X3OdyjF5c3KWUkgO2nLeBJNyY1hyxlnJtS6UtIFc4WccP8/Jf3Q0741yZ5TpVdDQp/hKbGtZpxSv0D2C0s7Haj9H6dM9tThFD/XfPAhPue5OZMoHG5fOHA2JhOm/TcrWf1aWxvH1UPyIS7FSSWpx/hDSkpvUo%2BEPLmTIyWv1XsySTe48gkO7r5upZX8w8lZi%2Bw5h1OcQTxOcVhuDTvEfX3gI1Uc14eOJuyh9DWM%2B8P4f60DKhkmX/y2RJh18uRfi%2Bw5h1PATxVqEfdTn00RGc/QOYBU5LUTE6ZnodkcAoUEN7LPQdL1XYvsOYdTbx5xuydzbDIkIEdPoROx9/Wuys%2BXH%2BRc%2BpiS3wDi2SJ8FWILXzHxCdf8BY073AWNoVKN2YoPCMDvl7uPfN5vPcYZlNkCwBplcw6nXi4hSFzj7t%2BxQ9zoCE9dB7E95Lg9qPN4a6Kikf7c5hkKYWrsat2n9hL1mB6QLSwUGyr5bW2Dl0e9PGcwP7FyzmxNdVmL7Bjqy3pTBvXMljDpntpoea//oMWu5S9ipLBKvQf3uMK0VYjkb0blTrSWO1bK7n/fr0F2v1qVfPTxNS65B9Uc4zmY/rbh0l5IGD4tfBVPmpYre2rS9JxoOf5ejOwcAq9wsTcko04lvlWTUphwhmKuFvdQmXCEP2uGL6nLzSk85r6H6GSvuFQdxuy1eqXIHk%2B0k13ZAeILdzjiQMgKXUPaqRRiifNbySkZM2ybc7m5VnaqHxOdylAeLsaEd3vn6JUie6wX7Rf9ftBia0yBy3t/ECSf/dWGQ4ccW1q0ybncPDWOv2Cd0iUVKsaJgjl6lZCdcUgM9LhEP4rJUmRPOeWo76cuN/fAJDdmT%2BnlY/2UjkPpRf//2Sz%2BRdjInnJX3/dTl5t7jBwfEscOqDV65azsMdEJqWrC2SpsjOxVsM3ulHO5efYgAwLiPDthDKGl/2g3R68U2fmgxQel8GJ7eJm7h73/k2lk7w7x4AAQI3W5uYdm4S0x5IdE5%2B85eqXIHqdSvX2LcXCxgXp4zmRuCoEU2VdX1si%2BugtORoFFQ5Ia1IzsNahZn10iYGTfpdtM6RoEjOw1qFmfXSJgZN%2Bl20zpGgSM7DWoWZ9dImBk36XbTOkaBIzsNahZn10iYGTfpdtM6RoEjOw1qFmfXSJgZN%2Bl20zpGgSM7DWoWZ9dIvAPvp5wSawSNBsAAAAASUVORK5CYII=" data-latex="f(x)=\frac {ln\left | {x} \right |} {{x}^{2}-3x%2B2}">的所有无穷间断点为
A:<img class="kfformula" src="data:image/png;base64,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" data-latex="x=0">
B:<img class="kfformula" src="data:image/png;base64,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" data-latex="{x}_{1}=0,{x}_{2}=2" width="166" height="44" style="width: 166px; height: 44px;">
C:<img class="kfformula" src="data:image/png;base64,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" data-latex="{x}_{1}{=0,\, x}_{2}{=1,\, x}_{3}=2">
D:<img class="kfformula" src="data:image/png;base64,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" data-latex="{x}_{1}=2,\, {x}_{2}=1">
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,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" 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
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]
当______时,变量<img class="kfformula" src="data:image/png;base64,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" data-latex="\frac {sinx} {x}">是无穷小量。
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 \frac {\pi } {2}">
D:<img class="kfformula" src="data:image/png;base64,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" data-latex="x\to \infty ">
函数<img class="kfformula" src="data:image/png;base64,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" data-latex="y=arcsin\frac {x-1} {5}+\frac {1} {\sqrt {25-{x}^{2}}}">的定义域为( )
A:[-4,5]
B:[-4,5)
C:(-4,5)
D:[4,5)
<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,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" 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
<img class="kfformula" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAPwAAAA1CAYAAABlTIYbAAAH9ElEQVR4Xu2cOcw%2BUxTGz78lSlsnqDQqsQQFGrGECiEUlqgsoaKmIpZKLAUhqOzRoCFBVCQ6W2erackv5shx3TvvzPvOnJnvm2eSr/jmnbn33Ofc557lnjsnTJcQEAKbQeDEZkaqgQoBIWAivCaBENgQAiL8hpStoQoBEV5zQAhsCAERfkPK1lCFgAivOSAENoSACL8hZWuoQkCE1xwQAhtCQITfkLI1VCEgwmsOCIENISDCb0jZGqoQyCb8F2Z2oZk9YGbPCH4hsGIELjWzq83s0ZlkfMzMPjSzz2Zqv9psNuFvNrPXzf5X0nu/mT1duZ%2BJhfoSAo4AZH/IzG6cERLv48lM0mcT/lUzu7VBbBaDN2YEWE0LgaEIME/fT5iPzPlrzey2oYId%2Blw24f8ys7dnXjkPxUTvbxuBOzsSzmndI8JvdYvLSxmwL0H4GL9fY2a3VKw%2BLv5ZXazP8yeb2almdnEXEsT/L8oASn1sBgEI%2BGaCdXdAsfI3ZRnBTMJDbtyk2CeuE%2B4Mlj/eJ7kHkUuPgP%2BJ9R/s0Crf28ysnGCgJI3%2BMLPHJ2jruDRBXP2ymZ2TPKDvzeyOjFg%2Bk/BPdRY79okl/7WSyOM%2BWfyS0PH/2gKSrKcj2x0T%2B1Mzey0zfjwCaDHvLlgAEwzfVxk7V5mEZxX7vbPcUfcMlqtMXDxiZlghl7HM5PM78Vb2anwE5u1OER1LbY/%2BF6o04hUaSltoMgmPdWZPEzcy7sFznzj%2B9OI%2Bbj2Xx%2BjEVmeG/1lASHSU7e2c7XrA%2BnZLtgwPc%2B6Fbl5l4oDhurtiDCeXIZvw9Odxuw/G3fTafRYIjzF9wYj/0x6hgsf0kwM0QYO%2B9UJTf5rZt2b2nZldUinqwKM5r1vE8Hhwve/t3uP9nxoxtz/nfZxkZs/1xIQtbysOd4zc7qW5pxblRpZzu9xLa9uV52/vOj/bzN7rFn8s32ldsdYnCfmGJXNCKX1nEp5J9q6ZfVlkQBkosSQFOR%2BEGdcXv/NYq70JODpZEx52xISM32Nil/kMFgIwYOxYGnYmXuzu4eHcUKlh8GKmu4JlqhWOuIdEm/TNhS64wD56XWPk5tmvg9wsyPTxSlhwWBDYYWmFX8jmBSiemyHccDw%2BMrMrEwqzUkjXmF0pfWcSfjIWHZGGPE4mXCktG8r92MyuCmPBunsZJ79zUZThiyAL3DfF9o2TPXpCvOclzDX9em4kLhAR0n3ldqL%2BUMk4P9%2B5rDV5%2BO2dymIfE4qM/fNKnofxszDsc2F8yh2KFNKJ8Puoa93veBa8VmTkJGWyxTptJ7wTrvy9NuKWa859FpR7Ki%2B1PAUe3Udu31HpSwT29Qnho5yOT22hnFvrIvzcCB/T9t2K1rLgEJvfWxPaE2rRutdg6uujD9aad%2BHPTyF3zYqPqbB0fJbwPkX4Y0rIuYfVF3PuikexzmV8X5N3Vzu1d1ohgD97qNw/FmEK7e7qs5QTGbhiuDO3vrz9tAKYYkB4Vk8ctyx9ltLW0A%2BWgoRYrey3z8KOKYgZkmkvsXDr2fIeDpW7Foa4x3LZwEqycjcmU58sNiQwU%2Braw8DYlsPjm32RW8JtylTgUn15lr2MoVEsWXcnBv9z%2BQQbUxDT6qNvzDULXiYL2R3YV%2B4hCcrYXymr41MuSGWc7%2B9NnbSjH4rD5joD39INmLCzUcu5TDqHRfhJ4fy3sVbSzAnnGfJyIo8piKGtXxploK3z3L4F6lWNvv/tE21qucstw7K/cruuNn6y/7WahTk0l3qQJQwg7cCOCD/HtPknKXd94dJ7cQrfA8C95aKoJpYUQ7haHFyT0q1h6Sp7wUyt8CZ6BbUPMEwtd/nBEzCIcsUQAnku78qp3cJnfIiixBYdZJdrp/V5lAnPquhFKWNo6yfxxryzz7NYb9w0XEQu32tm0p/RWeeSlBBgTH07IcB1Zsbet1%2Btajx%2B91jRn4/FMf7%2B1HL7QseR5vLYKQvMFV2%2BA5kIbcox1WTcRx9D32H8fRgObWfoc2DAUfDZ3XkEOsqEp6QWQo39WsiSWy9DJ4GeWw6BtIx5N0QM0MMDE5oHo5JNeFZ7LB5E5TjgfV257b618JB31351CdIQwnulmr9bfrTj2W4cP4e694OVoQZWg4DX8M%2BdvCNZ91vGsVhHNpPwkN3r5b10FEDjEdixGvdyzrK0tK%2BdXYQvEyheJea13XzEIy4yyHB%2BwsGOsdjo%2BcMQwLXnwM5c31kkv0E4k%2BLKL0H4eKot1oqfUoBaWtehahsa%2B%2B4iPDFVWWPtxTDIUvMoau8MlVvPrReB1nbgFBLP2XZTvkwL70L4XvMUX1uhLcIC/uJJO%2B/LS0V3KSgWybTI64tU60CKPhW1C2X9vjgCSxDeXeQpDkfMEcPXCO%2BhAwojm1xu28jCLz6VJcAQBDIJjzXmfDMxMJf3vS9Z5srSx/PdyOlkx5X3DznEU3Dp3xYfolg9IwRqCGQSHmvs%2B7%2Bc6yZLz7XvJ6qIq1uufJ%2B2d8XwvEuCkX1jPqnFjkLsx4tJvI9WzbxmnBBYHQKZhF/L4IcQfi2ySg4hMCkCWyT8viHEpMCrMSGwBAJbJPwSOKtPIbAKBET4VahBQgiBHARE%2BByc1YsQWAUCIvwq1CAhhEAOAiJ8Ds7qRQisAgERfhVqkBBCIAcBET4HZ/UiBFaBgAi/CjVICCGQg4AIn4OzehECq0BAhF%2BFGiSEEMhBQITPwVm9CIFVIPA39OnrRSjPhFIAAAAASUVORK5CYII=" data-latex="{^{lim}_{x\to %2B\infty }arctanx=(\, \, \, \, )}">
A:<img class="kfformula" src="data:image/png;base64,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" data-latex="\frac {\pi } {2}">
B:<img class="kfformula" src="data:image/png;base64,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" data-latex="-\frac {\pi } {2}">
C:不存在
D:0
函数<img class="kfformula" src="data:image/png;base64,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" data-latex="y=2{x}^{3}+7x+6">在定义域内
A:单调增加
B:单调减少
C:曲线上凸
D:曲线上凹
<img class="kfformula" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAARAAAAA4CAYAAAA1gqf6AAAHcUlEQVR4Xu1dO8xuQxRdt9ZoEIlC0NOIKyERNEJBhZAobig9QkWUVMSj9CgkBBURohGV4t5o6BGdoFFQk8WZmEzmnG9ee87M%2BddJvuL//pk5e6%2B9Z83Mnpn9nYMeISAEhEAhAucK66maEBACQgAiEDmBEBACxQiIQIqhU0UhIAREIPIBISAEihEQgRRDp4pCQAiIQOQDQkAIFCMgAimGThWFgBAQgcgHhIAQKEZABFIMnSoKASEgApEPCAEhUIyACKQYOlUUAkJABGLvAz8CuN7%2BNcVveB/ADQBuAXAJwPnillTxzCEgArEz%2Bb0AXlw65qg4vwbgKwBfLDD8DeADAI/awaKWj4RAb8e%2BuHSopwG8MRmQtwG4B8ALiXJ/AuBjAB8Cw9454uzDJ4unALw%2BsLyJ0A9d7CUAXwL4ZmgpE4XrTSAPrXSo0R2X5PEsgAcScfWLcVTvjXOqmJQtJPOR5U3Va%2BRyzpdePQKJ9HZsjniPrHQokstHg1qecn9eKN/IHZLE7c8ERyfyUdyDOF27kC8J%2BDIAVwC4NTGGRF%2B/7whLxd4Ews70aeFIvpfzXFiMXTL7oMwjE0iIKWXlEuaZvcCe5L1cijPYHPpzjq25xOWg9O4kOkfF3INA/CkzA40PR2YlWwzPmEIu49fYyMUySmdHOU5VI2dtXQZUOaqWEmXt%2B2eq72Zuvm3pyySE1D7FWciDs%2BOdqmwL48YAdkG8sJNtMbw/Qlp3Tq5X36vchrWWsYVtHGFr5pGO5vMAGBB1fSj8O6UlbvE/NnMspCeBcITj7MN/Jx3310hgNcbw4XIgl/FTDBqWoRw3V65VRyeQkDxGjkWV2NCqDgc5Pu7cDMmAy5G/MnYYOYB%2Bm1HeSpfidnsSCAH%2BPRJkIoh8wrMHIaOHAT7%2Bn/EJy0NaLQxsQSA8u3F3sdX/r0gS5iEyP5BKXF9u0DabaCVnI3H%2BbaaVTLQrt/QdVs7OHChTZ3ItBqiW2GS31ZNAHOAhQ/N7xkGuChw5ZHjGIq6uZPxcgCjD24WBLtZlZP665YTnD5UzGV92t8TL1ScsT%2BxjTyu/aCVnrZ5W2Pk4cYD8bLF1aryMA%2BDjiTs3LTFo1lYrR0kRyDF0eHhp6/uQ4WsZP0VOv4zF7CFXhlj5ETvmLHKOht2oPpbkpz0JZI2h3fFp7q64I9UUPgQ2/LuE8ZNA8QqNatzROsEariPKOZpMaz7GWBRjhiUPZ0KtlqGb7%2B9JICVA7F1HBFJngdE6K7UZTaZRfSzJ8iKQbZhGNe5onUAzkKTuFi00qo8laSQCKScQHrrip8XzB4DvMhrKIZDLAdyU0fZWUUs5G4l4spkc7Fra%2BGcA/ISPCOSkyeYtsOdBH7frFEPP5e6I/e/PRlu8qVYbUc4RZYrhyYOKr2gXJtXV5ivHMwMM7o52XyFnFN0T9RHlHEkmbuPyCEPsTI%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%2Bn16fyeY4iawlBWNU5ZV8XA/HfH7MxSebO2ZcuexBIThq4cOaQ6hT%2BDCOW14JBK16v5xObtZzKhUESWVuzWhFkqu6p5WaRM1WfXuVa4bblQ710afae3qNgizRwofIkpieXj7%2BMWSMDN7rGdD9FIFvA5xBkMwMWNDSLnAWqmVYRbhF4exMIWZxPTRq4UI21GEiMDNxyh238FMlmVkMgbNOCIC16xSxyWuhe06ZwC9DrTSAuK1lNGjhfha1dGBr7ey%2B46siDSxem8WNyZj8W0%2BK3OiwIssbh1%2BrOIqeF7jVtCrcBCKQ2DZyvAmMaXL7EdmBYjtnP%2BBMQTIXI7V6/rNtuc%2B21%2BGHp1gRZ4%2BxbdWeR00r/0naF284EUmq4WertkTWtBJtZ5CzRzbKOcBOBWPqX2hYCZwuB3jGQs4WutBUCB0dABHJwA0s9IWCJgAjEEl21LQQOjoAI5OAGlnpCwBIBEYglumpbCBwcARHIwQ0s9YSAJQIiEEt01bYQODgCIpCDG1jqCQFLBEQgluiqbSFwcAREIAc3sNQTApYIiEAs0VXbQuDgCIhADm5gqScELBH4B8fIukgzke5MAAAAAElFTkSuQmCC" data-latex="{^{lim}_{n\to \infty }(\frac {1} {{n}^{2}}%2B\frac {2} {{n}^{2}}%2B...%2B\frac {n} {{n}^{2}})}=">
A:<img class="kfformula" src="data:image/png;base64,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" data-latex="{^{lim}_{n\to \infty }\frac {1} {{n}^{2}}+}{^{lim}_{n\to \infty }\frac {2} {{n}^{2}}+...+}{^{lim}_{n\to \infty }\frac {n} {{n}^{2}}}=0+0+...+0=0">
B:<img class="kfformula" src="data:image/png;base64,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" data-latex="{^{lim}_{n\to \infty }\frac {1+2+...+n} {{n}^{2}}}=\infty ">
C:<img class="kfformula" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAKgAAABCCAYAAADDlJ1QAAAFmElEQVR4Xu2cLcxlNRCG39WYNYTgCODBAQ6/CFYtBAQJnh8LQbKWH80miCWAghBwCFCAAw8ERwgGg4a82TNJv27POT297bS99z3JTb57v2k7nXnu9G96r0GPLDCwBa4NrJtUkwUgQAXB0BYQoEO7R8oJUDEwtAUE6NDukXICVAwMbQEBOrR7pJwAFQNDW0CADu0eKSdAxcDQFhCgx9zzHoCfAHx2rNiuNOt9c1fqAgUEaL7TCdEfAD7IL5It+TqARwTp/fYSoNkM4T/gytEwgX0j+iy/tvsl4/pPqetsygrQfFeGAL0A4CEA7wvQfAOWSArQfKulItxa1CuJhiVl8rWfVFKA5juuBqA2LWCrXwJ4PojAVv+WTL62ZyIpQPMdWQNQLoY4LeCLq/awTvt7SyZf2zORFKD5jtwD1MBK1RjaOY6UXGhxZyAFq0VTk8nX9kwkBWi+I78A8N0CExdJt5YhOgXP1nzS/vfj0vQPy/ZVuM2UkrnIfVIBmg8oJQkVh+e9jfqjCx7W+/QxVdylfwPwmHerArSNxTnct9jQb6Ptdq03ALwD4KmKW2rZ/RCg2aa6WEFObT4H8KkAHZMBzg35GuX5GcA/HZQ5Om2poqJ3BOVci0PFxa5Kq3itTyUXAShXv6mhwrZovL8wfVw9Z6sXAehdAC+tzGUI797qeEbX8sv37LIlZRv0M/bjIgBlJ3nEd3NGDxXqzEWG9beLkwv1jot10d17SGUnw/kntzBeTERVy4+kLF8PAHgQwDPLFCF8P/r+YeqEqBIzrtWcPaCE8etoeOeQ/3J0zGcb4gQvjrh8Hw6TXYxWiMXs8+wutvaMoKkEXzrtr8TCyTa6Y6OE71PAF7LTvNja4rB5wxUa4M4LR69Hl+suvy5BpULV+1V4Asqjsr8TR3qMonwYScPnLQDvBhE3jkD8/6s9jt/2zXpFgnBymsIR4ZxOmA6aoUzcE1BGv7cB/BsdA/JzzkOZoR4eD1oyhc0xudh4OACcwN9J1FdmiXal2L/w8bR5u1451expLBuebd5pXdz6nEDfXgQN8PA99deNyHsGskhdgs5XgZ1Lyjcr4wkoIx4NEV/bJXifLPPQb4Kebs0/KbZWXzNjqWJ/C3gC6t87tVhqgVcy8w94Dfvj0kZyygnQdStdB/BEjhE7yXzfqV3XZgXoNqBPunrjWGPM7j/7R4Cej4tbLpK4sH18yUTjGsLt9E6A9gF0pgQS7pJ8C8AWsLaojfetm1hSgDYx626lMyWQxNuCrke2AnSXpSYCMyWQxAk+NIjbubwAbcJfdqWu0Shbq6uC8fGsq86zA8qh8qNgflTogy7FZk0giTPKmhpvdkA5gWemjcuEvaInZk0gob15gdAt4dwT0K0k5FO2LfiNfm4litolPWMrTpb+cMmw+nNJOqkBek4/Z0wg6fIju56A2q9npJKQT9HD8kLDxBICafe57Z4T3/PX5AgpcxqZPB2CzXp4cmTJKKUBs1U/S/WpUS6G0+3+2ClgHO14Kgl5Lek4jny5bYURkvmiMWxMMGHiLZ9U1E2VyW3b5I7082jdPeTpI27Sh6mQNeyU1RdPQKlQnIQcv89SOhIiEK8trzAbas2INrym+l7L8C36WWKbGmXi6YjV6cKOSyOBleIk5BpJx2tz0BRsFrGp0u+JbPxagLboZw3YpqvDG9DaScdbq3jC9kuweDI4ObRzyOLlu/AKNOdV/F+NhVLtfk4HVi2FewAatnlq0jHLc3gPh/bQNjym4xVlXhXhdlQoa/uQJl8zCSI+aTm1n7X8PV093oBOZyAp3NcCArSv/dX6jgUEqBAZ2gICdGj3SDkBKgaGtoAAHdo9Uk6AioGhLSBAh3aPlBOgYmBoCwjQod0j5QSoGBjaAgJ0aPdIOQEqBoa2gAAd2j1S7n93fSRSqBvlDwAAAABJRU5ErkJggg==" data-latex="{^{lim}_{n\to \infty }\frac {\frac {(1+n)n} {2}} {{n}^{2}}}=\frac {1} {2}">
D:极限不存在
下列各极限均存在,则__________成立
A:<img class="kfformula" src="data:image/png;base64,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" data-latex="{^{lim}_{\Delta x\to 0}\frac {f({x}_{0})-f({x}_{0}+\Delta x)} {\Delta x}}=f'({x}_{0})">
B:<img class="kfformula" src="data:image/png;base64,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" data-latex="{^{lim}_{\Delta x\to 0}\frac {f({x}_{0})-f({x}_{0}-\Delta x)} {\Delta x}=f'({x}_{0})}">
C:<img class="kfformula" src="data:image/png;base64,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" data-latex="{^{lim}_{\Delta x\to 0}\frac {f({x}_{0}-\Delta x)-f({x}_{0})} {\Delta x}=f'({x}_{0})}">
D:<img class="kfformula" src="data:image/png;base64,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" data-latex="{^{lim}_{\Delta x\to 0}\frac {f({x}_{0}+2\Delta x)-f({x}_{0})} {\Delta x}=f'({x}_{0})}">
y=xcosx+sinx是奇函数
A:错误
B:正确
f(x)是定义在(-l,l)之间的任意函数,则G(x)=f(x)+f(-x)定是偶函数。
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
<img class="kfformula" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAQEAAABDCAYAAACcC7AuAAAIx0lEQVR4Xu1dO+wvQxQ+tyVKRCeoKUQuCZGIRjxChZAoPEqPUBGJhop4lLiF5N6gIkJug0IUREWN6LwaiUdLvthzjcnM7jx2XjvfJrf439/O7pnvnPn2zJkzc04ILyJABKZG4MTUvWfniQAREJIAjYAITI4ASWByA2D3iQBJgDZABCZHgCQwuQGw+0SAJEAbIAKTI0ASmNwA2H0iQBKgDRCByREgCUxuAOw+ESAJ0AaOjMBjS+deDewk7g+9N/CR/d9GEuhfR5QwDYFbReQhEbkrovl7IvKmiHwU0Wb4W0kCw6uQHfAg8IWIXJuATmq7hFf10YQk0IceKEUaAvjafygi74vInSLn0uDvEZG7I70AlQDewLsi8k6aSOO1IgmMpzNK/B8CGLBXisijInKBMXBzBnIOgQypG5LAkGqj0AsCfy9egD3vx//n2HZu+6EUlAPUUB2lsIdEAIP1GRF5wepd7iDObT8U2CSBodRFYRcEnhaRO0TkpIh8KSI/WvN/3yA+LSK/isiFIvLVMo34QESe2JlEhlIUSWAodVFYAwEQwfMet99FAiCAt5flP/yOC16E6xn0BGhqRGAABDCo74sggZeNL76SwG1WQFG7TRIYwAAoYn8IfCcil1cUC++Da+/KBVgbxMgKfEVEzojI/R55SQIVFTnzq64XkVsWl3RkHLBW/+wyP99jegn3/KyIfL4Bii8oiGZrgxjLh8gpuHclF4AkMLJFDiI7CODJxGSW3rqoa/KYb+9BAorNSxtEgIHqG8hw/XGZAT94AN8uyUX4TWVFbMFcXXC17Q3zXeXZQ2kxAiElExHdx2fcqGEAhfksMt2OlJW259cTCTuYr/vcdfy+RTp2+i/k+37RwTfL6gD+/NOyRaYNx4zohHt9ytN5Wm1SSuhCdpMHFwOP2diS/dIKD9iTBCAuPAwQ5SmH7Pha40OyZi+454fIjw3s8FLHkmEF+Nq9ovagW4vogiCO9GX0aTUnpbWdpWy/eW8ScKXvqkv/2kIOdpKQLaW5LLjdAxHc7/M+QtoPeU9tEvCleQ4JXoLQmO++tRFFxz1XL/PdNzxfwoRXF2+yNwlAYKwAPGDEBvAORPWxKmAn+BTv4FFf0IIEzHgAIssI7tjrveqW4V78O3/J8rpumQuaf6dsF22lT/TrmpWvzcfLvPXTpZ/YD+9yh1vJv/beEiSALzMy+6Y76KOmgmuSgG77NN+p7pdtQBqcsT0H/I01Xv0KlDC8kvjHGDX6NjsJbJFmSV1N8+yaJOAK5kDJPzsivXrMkz3Izb9dpNK74kBuoS7+HiQAz+LmSqCUIGQEUR9OPBykUrfHf01NEvBleOHriMsOyNi54fYKAn6HkdTMUsvVeMxA2YMEaix34R3YkHPZspkHa/F7BtdiMMvVz5Tta5KAZnjZ67Ka9HGxY70WStE5P6Lqlxh/g1QwX7af17MiYwx6FBIojXcMZqVlOeTza5MA3mcvw6iSXf9v7hW300S1nbkxpHclxRg0SeBfbcZg1rv+1+TTIDnu+UtEzquVUFaTBPDlxt5t7P828wF02Ue3eSpQa/EA3ON7Xs+GEGPQJIF5SECntjgmzTzpuMZ0bpdc754HXW+y9UwCNzYG62sR+c0hQwxmpbuABCYsWadc+AC6kps09uXaB0ESSEG68zZ28suauPQERJA49eKBVwd0hcu1rbnagac1pwOdj88q4mHJDtOekASgUBLQgKmrA3r8luu3P3ZaPixZ5QerP/hC1lrmrGIExkteX5ZATS8AfYbesNryXMCW6myZSQLZEEY9AEpHyisCnltXKAmsPae0O1m6yg/OFsDy4yNbYA36u+6qRe6IXoiZ/VSzChJJoK71xLh4PZGAr8hHKsmEtjvqZiu1Ouj4k9aeTq8kEOtiAtRRikmGHsPVEwm4inzEEJpNtaGDOxSrWlS+d2AQOoYX0NTT6ZEEUlxMGMEoxSQxJcA+961tsD2RAGRBqS/zDITQgewaoCEEgqg59vY3HSCF2QUxot9XTpjSrdNFC6T2SAKhrqJLPzltC+v73OPXIt5q+CitheAQLp0vpgyGvfCwE7UgV+7S3VZ7yP5UjcBYLcU73oMgIKog32D1UxOHqpw+1ZIEXPPMkC/Ems5yvk41bQEMf1FggDBHrlwSWCvysTWIt+Rea4+A4C+TbCGGLdxuHH0G3OApflaLAFuSgGuemTuIc0lky3D3/B3TApwbUPI0JeCZe4yZr8iHbxDnVvmBDm86+DRgTzvKflZLEnDNM3O/LjluaouYAoggxc3PVnzEA3xHwrl0tUeVnxEwiYCv/1tbk4BdTLIlCWAjEtak99wG278FbEvo2wLu0hWr/Gzj2d0dLUggdZ6Z62aGgA/DxlHXrmisJnboc+xj0nD4JRKBUBwT25uPQiauoOCWx8UqPyHW1sk9LUgAXU+ZZ9YoJqnBSttDsWMVWsUGRKAFLUzywHOuClgG7MQMVsUACbg2t6x5bazyM4JmFxlbkUDMPBOi5riZ9hc8VD3ml96uUoNnwE1Gfjcul/fgahP67l7uWyvywSo/vWgpU45WJBAzzzS7WNrNxPOxp9ve1+0b0Pga4nLheAQS2CrywSo/mQOwh+atSCBlngm8SruZvpiAa0Dr1AFyobyVfdbhyCQQWuSDVX56GMWZMrQkAdc801cMskYxybXVAQxoHHqhAUMlAEwDrliOQTfTardq6WWqrXhzkGFokQ9W+SmujrIvaEECW8UkXVluMMrSxSQxRbGnASb6MHYUPcFhp1hKNO/VPun92A46UlGUslbGp3eNQAsS2JpnpriYAHnKYpJdWxeFGwKBmiQQOs8EcLEuprY5ytr8EMZDIY+BQE0SiJlnHgNd9oIIDIBATRIYAA6KSATmQ4AkMJ/O2WMi8D8ESAI0CCIwOQIkgckNgN0nAiQB2gARmBwBksDkBsDuEwGSAG2ACEyOAElgcgNg94kASYA2QAQmR4AkMLkBsPtEgCRAGyACkyPwD2d1JmI9P+npAAAAAElFTkSuQmCC" data-latex="{^{lim}_{f(x)\to \infty }{(1+\frac {1} {f(x)})}^{f(x)}=e}"> ( )
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
无穷小量和有界变量的乘积定是无穷小量 ( )
A:错误
B:正确
<img class="kfformula" src="data:image/png;base64,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" data-latex="d\int {f(x)dx=f(x)dx}">
A:错误
B:正确
若一个函数在某点的左右极限存在,则函数在该点一定连续
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
如果f(x)为偶函数,且<img class="kfformula" src="data:image/png;base64,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" data-latex="{f}^{'}(0)">存在,则<img class="kfformula" src="data:image/png;base64,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" data-latex="{f}^{'}(0)">不一定等于0
A:错误
B:正确
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