北京中医药大学《高等数学Z》平时作业5

adminhan

<img id="ODusqafTEMP20200515074053990.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODusqafTEMP20200515074053990.png?Expires=1904902854&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=/6ce0FYN6dVf2xjEyOCEvyBSYe8%3D" />
A:e
B:0
C:e²
D:e³

<img id="ODboetwTEMP20200515074054408.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODboetwTEMP20200515074054408.png?Expires=1904902854&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=jPFWRawGeZQ29KqvHuuHe9Ev/nI%3D" />
A:0
B:1
C:-2
D:2

下列方程中一阶微分方程的是
A:<img id="ODlthmyTEMP20200515074054645.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODlthmyTEMP20200515074054645.png?Expires=1904902854&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=39OHoa6W/Ca2dsKC7uNtTmrxKiE%3D" />
B:<img id="ODskgdtTEMP20200515074054785.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODskgdtTEMP20200515074054785.png?Expires=1904902854&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=uSrZa2P2MJx/WnVEiAjr92uB/2I%3D" />
C:<img id="ODzxnhoTEMP20200515074054943.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODzxnhoTEMP20200515074054943.png?Expires=1904902855&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=%2Bv8Nh2rAmhVAuquAFBv1WC0/W/s%3D" />
D:<img id="ODcbjiqTEMP20200515074055127.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODcbjiqTEMP20200515074055127.png?Expires=1904902855&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=CFyhvxHMELS6quzQcmOwF3UR1HY%3D" />

<img id="ODvsqbnTEMP20200515074055276.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODvsqbnTEMP20200515074055276.png?Expires=1904902855&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=AVfqoczWxxA0L7ALAOsq%2B31MZKA%3D" />
A:4
B:5
C:3
D:2

<img id="ODtjfkfTEMP20200515074055426.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODtjfkfTEMP20200515074055426.png?Expires=1904902855&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=%2BbDzxaFZEtohmM/hKWU3EuVWZaw%3D" />
A:x+y≠0
B:x+y＞0
C:x+y＜0
D:x+y＞0且x+y≠1

<img id="ODnecrmTEMP20200515074055573.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODnecrmTEMP20200515074055573.png?Expires=1904902855&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=iyDql18gfh8BEqlVuZOB2uK2Uag%3D" />
A:0
B:2
C:1
D:-1

函数y=x³在点x=0处
A:有极大值
B:有极小值
C:无极值
D:不是驻点

设D是 y=x,y=x²围成的平面区域，则D面积可表示为
A:<img id="ODjgfhxTEMP20200515074055701.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODjgfhxTEMP20200515074055701.png?Expires=1904902855&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=njgerLGY%2BUCGHXAwnpBlyuCpXGk%3D" />
B:<img id="ODkjsyuTEMP20200515074055822.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODkjsyuTEMP20200515074055822.png?Expires=1904902855&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=B6rVqg7bw8SUtWJbcp3%2BKRLEcJg%3D" />
C:<img id="ODhnexpTEMP20200515074055969.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODhnexpTEMP20200515074055969.png?Expires=1904902856&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=ZefQjG4ssRk2%2Bi7kHl90eGJ9A4M%3D" />
D:<img id="ODubyfyTEMP20200515074056184.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODubyfyTEMP20200515074056184.png?Expires=1904902856&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=/uoMdLBgWu0J9KPgz3a0fONan3w%3D" />

设D是x=1,x=3,y=2,y=5围成的平面区域，则D面积为
A:2
B:3
C:5
D:6

<img id="ODyhxfyTEMP20200515074056338.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODyhxfyTEMP20200515074056338.png?Expires=1904902856&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=bGK2BKzt5ZdtyVs6UgQwKSuUEG8%3D" />
A:2
B:<img id="ODtahouTEMP20200515074056475.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODtahouTEMP20200515074056475.png?Expires=1904902856&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=4i5HgDIgSnKdfRuCOR//AZn0p8I%3D" />
C:1
D:0

<img id="ODyvavyTEMP20200515074056567.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODyvavyTEMP20200515074056567.png?Expires=1904902856&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=eACyj/XskJXQWfQex0OAiWpgTRQ%3D" />
A:x≤1
B:x＜1
C:x≥1
D:x＞1

下列函数为奇函数的是
A:x²
B:x³
C:x⁴+1
D:x⁶

下列函数中为基本初等函数的是
A:sin 2x
B:x²+x
C:cox x
D:<img id="ODqunqrTEMP20200515074056708.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODqunqrTEMP20200515074056708.png?Expires=1904902857&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=mNUoOtl/cpmgulmwk3eAUxdmytM%3D" />

设f(x-a)=x(x-a),(a为大于零的常数），则f(x)=
A:x(x+a)<br>
B:x(x-a)<br>
C:(x-a)(x+a)<br>
D:(x-a)2

已知f(x)=ax+b是线性函数，且f(-1)=2，f(1)=-2，则f(x)=
A:x+3
B:x-3
C:2x
D:-2x

下列函数满足关系式f(x+y)=f(x)f(y)的是
A:xⁿ
B:e^x
C:ln n
D:sin x

在R上， 下 列 函数为有界函数的是
A:ln x
B:e^x
C:tan x
D:1+sin x

函数y=f(x)在点x=x₀处左右极限存在都相等是函数在该点有极限的
A:充分条件
B:充分必要条件
C:无关条件
D:必要条件

<img id="ODlrfndTEMP20200515074057080.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODlrfndTEMP20200515074057080.png?Expires=1904902857&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=jcXlpzlK0UerpRTkeBNNaxz7jc0%3D" />
A:e²
B:e^-2
C:e
D:e^-1

<img id="ODglqfeTEMP20200515074057267.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODglqfeTEMP20200515074057267.png?Expires=1904902857&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=/hPcOnkV4MGlvs4onBEZrxSEFvg%3D" />
A:0
B:∞
C:2
D:1

<img id="ODljsqrTEMP20200515074057370.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODljsqrTEMP20200515074057370.png?Expires=1904902857&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=gUUjcJBhbh/M3ZMJQiwxvRGbJtQ%3D" />
A:1/4
B:4
C:0
D:∞

<img id="ODccicsTEMP20200515074057573.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODccicsTEMP20200515074057573.png?Expires=1904902857&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=qDysmR/ecjK6mgNOli9eXncAozE%3D" />
A:0
B:1
C:2
D:3

函数y=f(x)在点x₀处连续，则f(x)在该点
A:无极限
B:一定有极限
C:不一定有定义
D:<img id="ODohpzgTEMP20200515074057728.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODohpzgTEMP20200515074057728.png?Expires=1904902857&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=AKOiDUg%2BVEh4fiXtYyhLl40EEas%3D" />

<img id="ODxnsczTEMP20200515074057835.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODxnsczTEMP20200515074057835.png?Expires=1904902857&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=y9RFje4XyXBGRD8M%2BBuqjMal3DM%3D" />
A:<img id="ODtililTEMP20200515074057984.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODtililTEMP20200515074057984.png?Expires=1904902858&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=CC4tFrC%2Bb99BTxBAJCQt/RlkX7E%3D" />
B:<img id="ODpfakpTEMP20200515074058125.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODpfakpTEMP20200515074058125.png?Expires=1904902858&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=OumdJT1uUW44y5m6CNn0eUmmxaI%3D" />
C:<img id="ODuuykvTEMP20200515074058313.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODuuykvTEMP20200515074058313.png?Expires=1904902858&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=NpaGHF/55%2Bfv/ocPXWZalOxG0N8%3D" />
D:<img id="ODkmuxhTEMP20200515074058447.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODkmuxhTEMP20200515074058447.png?Expires=1904902858&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=45pdTtxbYT9u8FT12F2hpkIiHlw%3D" />

下列变量中为无穷小的是
A:<img id="ODpzbgrTEMP20200515074058543.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODpzbgrTEMP20200515074058543.png?Expires=1904902858&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=0d1mSRr2KXgEtNN4W63WTfmakQQ%3D" />
B:<img id="ODjgbbuTEMP20200515074058765.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODjgbbuTEMP20200515074058765.png?Expires=1904902858&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=zTZynjF8lxXbUN/XfE3EbSM8cu0%3D" />
C:<img id="ODkmlqlTEMP20200515074058898.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODkmlqlTEMP20200515074058898.png?Expires=1904902859&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=67rQrg0zj6VEDEWcpnd5zWGoRzU%3D" />
D:<img id="ODgprewTEMP20200515074059031.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODgprewTEMP20200515074059031.png?Expires=1904902859&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=%2BfzEKv5ccKGndecKaOR2PSQXixE%3D" />

<img id="ODbqrjsTEMP20200515074059242.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODbqrjsTEMP20200515074059242.png?Expires=1904902859&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=OvUP64L6MirUvJxSQWCYd1922fo%3D" />
A:<img id="ODiaermTEMP20200515074059393.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODiaermTEMP20200515074059393.png?Expires=1904902859&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=mKABxoQqhnZwTT60a6mf/Vmi/YQ%3D" />
B:<img id="ODtrkxjTEMP20200515074059516.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODtrkxjTEMP20200515074059516.png?Expires=1904902859&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=2asMJjmDabh1BlEU1G/IA3xsHKg%3D" />
C:<img id="ODadogfTEMP20200515074059603.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODadogfTEMP20200515074059603.png?Expires=1904902859&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=GGhs73uiQB1xHRk8uNfJ/GLzBQU%3D" />
D:<img id="ODqmygtTEMP20200515074059787.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODqmygtTEMP20200515074059787.png?Expires=1904902859&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=4V8nj7Y7CZcNbwc8CJsv4yR0pd4%3D" />

<img id="ODpqowdTEMP20200515074059912.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODpqowdTEMP20200515074059912.png?Expires=1904902860&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=5w/vSndMkjbo6dnsjvb9wspBQrA%3D" />
A:0
B:常数C
C:<img id="ODkasyuTEMP20200515074100014.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODkasyuTEMP20200515074100014.png?Expires=1904902860&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=H6UMi6Av3MduhffeNhQGiqbd6ko%3D" />
D:不存在

函数f(x)在 点x=x₀处有定义是f(x)在该点可导的
A:必要条件
B:充分条件
C:充分必要条件
D:无关条件

<img id="ODejefxTEMP20200515074100197.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODejefxTEMP20200515074100197.png?Expires=1904902860&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=7fZPXLT/A0iAJxdN0xgj02BO5l0%3D" />
A:<img id="ODlipfpTEMP20200515074100320.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODlipfpTEMP20200515074100320.png?Expires=1904902860&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=pQ2yvddkdKPaUtNfaLq6V1Vqtm4%3D" />
B:<img id="ODdvdzsTEMP20200515074100468.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODdvdzsTEMP20200515074100468.png?Expires=1904902860&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=7dlTc68N%2BmvifK%2BVzLOM62DU0Nk%3D" />
C:<img id="ODzoeaiTEMP20200515074100648.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODzoeaiTEMP20200515074100648.png?Expires=1904902860&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=axTBLvfDV93Rx9ZSLVe0qEJcMCo%3D" />
D:<img id="ODijoicTEMP20200515074100736.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODijoicTEMP20200515074100736.png?Expires=1904902860&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=HoVxPeBPbGhrS0NBDDmsAgObjWk%3D" />

<img src="http://file.open.com.cn/ueditorupload/image/2020/05/18/6372540807852556512934889.gif" title="1111.gif" alt="1111.gif">
A:收敛，且不绝对收敛<br>
B:发散，且不条件收敛<br>
C:绝对收敛
D:条件收敛<br>

<img id="ODizzonTEMP20200515074100922.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODizzonTEMP20200515074100922.png?Expires=1904902861&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=1JC8KYlQKXgQVbqbXVF9qk9g/4s%3D" />
A:0
B:1
C:-1
D:1/2

<img id="ODaocbxTEMP20200515074101037.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODaocbxTEMP20200515074101037.png?Expires=1904902861&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=zGrLXrg8gCFXzVYPzZ0WtuXasQA%3D" />
A:0.3
B:0
C:0.01
D:0.001

在x=0处，连续但不可导的函数是
A:y= x²
B:y= x³
C:y=ln x-1
D:y=｜x｜

设函数y=f(x)在点x₀处可微，则它在x₀点处
A:不可导
B:无极限
C:连续
D:不连续

已知曲线y=x²+x-2上点M  处的切线与直线y=3x+1平行，则点M的坐标为（）
A:(0,1)
B:(1,0)
C:(0,0)
D:(1,1)

<img id="ODedmriTEMP20200515074101168.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODedmriTEMP20200515074101168.png?Expires=1904902861&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=gxBv4Ufg5lnEzPRHo0EWRbNZiFA%3D" />
A:0
B:1
C:∞
D:不存在

函数y=sin x-x在区间[0,π]上的最大值是
A:<img id="ODgjxiiTEMP20200515074101307.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODgjxiiTEMP20200515074101307.png?Expires=1904902861&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=YoRjnOcw8p%2B5ZJufxmb1/Lta7Ec%3D" />
B:0
C:-π
D:π

<img id="ODqoarjTEMP20200515074101456.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODqoarjTEMP20200515074101456.png?Expires=1904902861&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=By6ToOWSWxB7WLGGzCXHMztrsWQ%3D" />
A:单调上升，凹
B:单调上升，凸
C:单调下降，凹
D:单调下降，凸

下列论断中正确的是
A:导数不存在的点必是非极值点
B:如在极值点处导数存在，则此极值点必是驻点
C:驻点必是极值点
D:如驻点不是极值点，则不可导点必是极值点

对于常数C，下列叙述正确的是（）
A:C的极限是零
B:C的不定积分是零
C:C的导数是零
D:C的微分是C

<img id="ODucfrcTEMP20200515074101645.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODucfrcTEMP20200515074101645.png?Expires=1904902861&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=PNDokAP5VuXLi%2BGZTB9nbAyPGjw%3D" />
A:<img id="ODjrsoeTEMP20200515074101791.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODjrsoeTEMP20200515074101791.png?Expires=1904902861&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=/gj7V4CmPVz2lYcvf8bdDhljPcI%3D" />
B:<img id="ODjvfhjTEMP20200515074101891.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODjvfhjTEMP20200515074101891.png?Expires=1904902862&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=xuMZBMMOYiysjR5KTDRIR8S97ik%3D" />
C:<img id="ODskwsaTEMP20200515074102080.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODskwsaTEMP20200515074102080.png?Expires=1904902862&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=FycVO70/A98WXBo0UfJFXVPaPl8%3D" />
D:<img id="ODvtclvTEMP20200515074102186.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODvtclvTEMP20200515074102186.png?Expires=1904902862&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=dgFKv4dpoNMKnkV0jXLdtX1LMlo%3D" />

<img id="ODeymofTEMP20200515074102372.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODeymofTEMP20200515074102372.png?Expires=1904902862&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=dVSkVVXKf/CyVdauN3DrEUuDn2A%3D" />
A:<img id="ODegklvTEMP20200515074102515.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODegklvTEMP20200515074102515.png?Expires=1904902862&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=HtKOjqYAHwdeuKXZfbPKTkyrCBM%3D" />
B:<img id="ODvlujkTEMP20200515074102610.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODvlujkTEMP20200515074102610.png?Expires=1904902862&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=a5frlTa82XpJ5z/pZn41s0kwkRU%3D" />
C:<img id="ODyrijjTEMP20200515074102757.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODyrijjTEMP20200515074102757.png?Expires=1904902862&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=YWN2kbGXA35Xidy61Li5wnkj3uM%3D" />
D:<img id="ODjudnrTEMP20200515074102939.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODjudnrTEMP20200515074102939.png?Expires=1904902863&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=WdpOCtroeFLA2R8MU/IUlWXRK1Y%3D" />

<img id="ODjhdmvTEMP20200515074103083.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODjhdmvTEMP20200515074103083.png?Expires=1904902863&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=DycCOB6kPli3pYmaBOXqWKRgBV4%3D" />
A:<img id="ODpxcgpTEMP20200515074103223.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODpxcgpTEMP20200515074103223.png?Expires=1904902863&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=5Qzz4gozwVFawSemajtTCJpHgH4%3D" />
B:(1-x)+C
C:x+C
D:arcsin x+C

设函数f(x)在[a,b]上连续，则下列等式中正确的是
A:<img id="ODjursuTEMP20200515074103486.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODjursuTEMP20200515074103486.png?Expires=1904902863&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=BbmYcy6L83KW2401pTtKKW9zd2Y%3D" /><br>B．<img id="ODuejafTEMP20200515074103582.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODuejafTEMP20200515074103582.png?Expires=1904902863&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=FSUxRdPmbPRjaUlh52MarVIh1SM%3D" />
B:<img id="ODkmwpgTEMP20200515074103748.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODkmwpgTEMP20200515074103748.png?Expires=1904902863&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=mcY5ulwKU0ahZ4hyiCn/PxvTeZs%3D" />
C:<img id="ODjdcfcTEMP20200515074103958.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODjdcfcTEMP20200515074103958.png?Expires=1904902864&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=iQz6CWnWGpCpQCimHCt0TCHwYUk%3D" />

<img id="ODspduwTEMP20200515074104294.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODspduwTEMP20200515074104294.png?Expires=1904902864&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=mIatP3p2LMFpkAbNOIeuQ9oEbFY%3D" />
A:3
B:4
C:2
D:0

微分方程cos ydy=sin xdx的通解是:
A:sin x+cos y=C
B:cos x+sin y=C
C:cos x-sin y=C
D:xos y-sin x=C

<img id="ODlmeqqTEMP20200515074104873.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODlmeqqTEMP20200515074104873.png?Expires=1904902864&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=ZD4tvn1jKNo3PWE2DphNYVgBOak%3D" />
A:0
B:1/2
C:<img id="ODdkcikTEMP20200515074105314.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODdkcikTEMP20200515074105314.png?Expires=1904902865&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=btWsdwOa2h0cMsS/0Nj2MhVhugA%3D" />
D:-1

函数y=2x²+6在点x=0处
A:有极大值
B:不是驻点
C:无极值
D:有极小值

设平面区域D由y=x,x=2,xc轴所围成，则区域 的面积为
A:6
B:4
C:2
D:1/2

设f(x)=4,则f(x+1)-f(x)=
A:0
B:-1
C:1
D:2

<img id="ODrbwgoTEMP20200515074105397.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODrbwgoTEMP20200515074105397.png?Expires=1904902865&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=cI5chyL8eUDcciJmE0cOQKmlLuw%3D" />
A:(0,1)
B:(0,1)∪(1,4)
C:(0,4)
D:(0,1)∪(1,4]

下列函数为偶函数的是
A:sin x
B:x⁶
C:e^x
D:x³

函数y=1+x+x²为
A:基本初等函数
B:复合函数
C:初等函数
D:分段函数

<img id="ODajffiTEMP20200515074105539.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODajffiTEMP20200515074105539.png?Expires=1904902865&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=YO5HS591PuaBjQmO0NEPftvsIFU%3D" />
A:<img id="ODqtsmxTEMP20200515074105675.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODqtsmxTEMP20200515074105675.png?Expires=1904902865&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=whHbYl8PlSmuTkjlLSa7eMyAdvI%3D" />
B:x^2x
C:<img id="ODcbxdjTEMP20200515074105865.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODcbxdjTEMP20200515074105865.png?Expires=1904902865&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=vBGZPs9JQlCI0ZA/ukjp/KSnako%3D" />
D:2^2x

<img id="ODhnsibTEMP20200515074105965.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODhnsibTEMP20200515074105965.png?Expires=1904902866&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=yAx%2BHFjawJIcHGMbdnWKkjxUij4%3D" />
A:able border="1" cellpadding="0" cellspacing="0"><tr><td>
B:9</td></tr></table>

下列函数满足关系式f(x+y)=f(x)f(y)的是
A:cos x
B:e^x
C:tan x
D:sin x

在R上，下列函数为有界函数的是
A:ln x
B:e^x
C:tan x
D:1+sin x

函数y=f(x)在点x=x₀处有定义是该点有极限的
A:充分条件
B:充分必要条件
C:无关条件
D:必要条件

<img id="ODfxwlkTEMP20200515074106116.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODfxwlkTEMP20200515074106116.png?Expires=1904902866&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=%2BJYl4Z4gQ6XWQo3Ji8hUxuLklqQ%3D" />
A:1
B:0
C:-1
D:不存在

<img id="ODdxxpnTEMP20200515074106252.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODdxxpnTEMP20200515074106252.png?Expires=1904902866&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=DtoQ9XnzKswjTHBDvQsgdlqL5iI%3D" />
A:e²
B:e^-2
C:e
D:e^-1

<img id="ODfdgltTEMP20200515074106443.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODfdgltTEMP20200515074106443.png?Expires=1904902866&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=bD9Sw78wK1GGZpVaFAcxQXcZ1fo%3D" />
A:1/2
B:2
C:0
D:∞

<img id="ODaweqcTEMP20200515074106541.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODaweqcTEMP20200515074106541.png?Expires=1904902866&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=ZilqPZInwqedppUf97bKV/qGzao%3D" />
A:0
B:1
C:2
D:3

函数y=f(x)在点x₀处连续，则f(x)在该点
A:无极限
B:一定有极限
C:不一定有定义
D:<img id="ODoqoorTEMP20200515074106769.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODoqoorTEMP20200515074106769.png?Expires=1904902866&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=GShbEOalAOIapOutyjugc3TJHtE%3D" />

当x→1时，下列变量不是无穷小的是
A:x²-1
B:x(x-2)+1
C:3x²-2x-1
D:4x²-2x+1

当x→0时，与tan x等价的无穷小量是
A:x
B:2x
C:x²
D:2x²

<img id="ODrucfcTEMP20200515074106920.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODrucfcTEMP20200515074106920.png?Expires=1904902867&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=msZNxBXtCbeHSiTeuvu3%2BV1PFPU%3D" />
A:0
B:e
C:1
D:-1

<img id="ODkrnqmTEMP20200515074107061.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODkrnqmTEMP20200515074107061.png?Expires=1904902867&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=5qWmG0nCPE9NEit6VSa7K6TvIEA%3D" />
A:<img id="ODvpogdTEMP20200515074107214.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODvpogdTEMP20200515074107214.png?Expires=1904902867&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=b7rira/1HI1QFHQI5o1uOL%2B2aCA%3D" />
B:<img id="ODunjifTEMP20200515074107320.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODunjifTEMP20200515074107320.png?Expires=1904902867&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=zUjHTIA2BRKgAg55OCuBFJZZLlY%3D" />
C:<img id="ODmbnaeTEMP20200515074107477.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODmbnaeTEMP20200515074107477.png?Expires=1904902867&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=CT2cVVj6YSYhKNpI/oYWxHP3uP0%3D" />
D:<img id="ODulsnjTEMP20200515074107640.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODulsnjTEMP20200515074107640.png?Expires=1904902867&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=sH5d7R4u8nXi53BP2PyT1HQg9tY%3D" />

函数f(x)在点x=x₀处有定义是f(x)在该点可导的
A:必要条件
B:充分条件
C:充分必要条件
D:无关条件

<img id="ODzdnupTEMP20200515074107843.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODzdnupTEMP20200515074107843.png?Expires=1904902867&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Z65trzb5zZ5rIyWTbVP8SfddwEs%3D" />
A:<img id="ODhezvlTEMP20200515074107972.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODhezvlTEMP20200515074107972.png?Expires=1904902868&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=%2BMIrB%2BcL90cm/wc2XNca36boA0I%3D" />
B:<img id="ODkmyucTEMP20200515074108162.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODkmyucTEMP20200515074108162.png?Expires=1904902868&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=DVbCinXpXbxc61BQPqajI61FFwA%3D" />
C:<img id="ODlfejkTEMP20200515074108307.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODlfejkTEMP20200515074108307.png?Expires=1904902868&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=NHsHS2qYDu6pB9tOGkWONRKEEGM%3D" />
D:<img id="ODqzqvhTEMP20200515074108405.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODqzqvhTEMP20200515074108405.png?Expires=1904902868&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=PakBMMLRlDDW8YPiJYcVuSbydAs%3D" />

<img id="ODbjftfTEMP20200515074108527.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODbjftfTEMP20200515074108527.png?Expires=1904902868&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=9yFJCZ5Akm2oeV%2BxeUM7l30p5CM%3D" />
A:0
B:1
C:3
D:5

<img id="ODqcnxbTEMP20200515074108707.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODqcnxbTEMP20200515074108707.png?Expires=1904902868&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=x8zLP9i3juwg2PysQhh2ruoDl/8%3D" />
A:0<br>
B:1<br>
C:-1<br>
D:1/2

<img id="ODrpuotTEMP20200515074108804.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODrpuotTEMP20200515074108804.png?Expires=1904902868&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=c/72bK0lgNGC7zibYR7ZndZfboo%3D" />
A:0.2
B:0
C:0.01
D:0.001

在x=0处，连续但不可导的函数是
A:y=x²
B:y=x³
C:y=ln x-1
D:y=｜x｜

设函数y=f(x)在点x₀处可导，则它在x₀点处
A:不可导
B:无极限
C:连续
D:不连续

已知曲线y=x²+x-2上点M处的切线与直线y=3x+1平行，则点M的坐标为
A:(0,1)
B:(1,0)
C:(0,0)
D:(1,1)

<img id="ODaplmeTEMP20200515074108934.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODaplmeTEMP20200515074108934.png?Expires=1904902869&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=o%2BBHLpy5XxKPvT8QSL7Zj2jadkI%3D" />
A:0
B:1
C:∞
D:不存在

函数y=sin x在区间[0,π]上的最大值是
A:1
B:0
C:-π
D:π

<img id="ODlsubuTEMP20200515074109076.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODlsubuTEMP20200515074109076.png?Expires=1904902869&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=aBfsgPzYAUjosCH9W1MZrCRQHdA%3D" />
A:单调上升，凹
B:单调上升， 凸
C:单调下降，凹
D:单调下降，凸

<img id="ODcjweeTEMP20200515074109269.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODcjweeTEMP20200515074109269.png?Expires=1904902869&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=cgRBMvPdtBM7p4y/60S2B%2BORFik%3D" />
A:必要条件
B:充分条件
C:无关条件
D:充分必要条件

对于常数C，下列叙述正确的是
A:C的极限是零
B:C的不定积分是零
C:C的导数是零
D:C的微分是C

<img id="ODsjuofTEMP20200515074109391.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODsjuofTEMP20200515074109391.png?Expires=1904902869&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=VzYrz97Jw0SWAOso5GncsvStTIw%3D" />
A:<img id="ODshzlmTEMP20200515074109569.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODshzlmTEMP20200515074109569.png?Expires=1904902869&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=7xQRYI1rLkQIF8yhrHCT0VXv5v4%3D" />
B:<img id="ODrgkvfTEMP20200515074109663.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODrgkvfTEMP20200515074109663.png?Expires=1904902869&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=9She71ZtOWYUc0FCTIfzPAokrR0%3D" />
C:<img id="ODeasadTEMP20200515074109821.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODeasadTEMP20200515074109821.png?Expires=1904902869&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=GKjSWX32f0QDwG9RY9D1iSuiiKA%3D" />
D:<img id="ODmadvaTEMP20200515074109980.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODmadvaTEMP20200515074109980.png?Expires=1904902870&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=A7njTr2g/P5VpQGeFX1GLOlL52E%3D" />

<img id="ODdbvvqTEMP20200515074111122.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODdbvvqTEMP20200515074111122.png?Expires=1904902871&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=y2Xvv0aeZ52OeoYeRcI/YNJ772Y%3D" />
A:<img id="ODymctpTEMP20200515074111260.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODymctpTEMP20200515074111260.png?Expires=1904902871&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=do7bpVuaBTIk4tcR0Yv%2BkCbKsEg%3D" />
B:<img id="ODxgxsfTEMP20200515074111441.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODxgxsfTEMP20200515074111441.png?Expires=1904902871&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=8p4W7o4XUFiOgOtzn8sZK4v4Eqs%3D" />
C:<img id="ODrbyxlTEMP20200515074111549.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODrbyxlTEMP20200515074111549.png?Expires=1904902871&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=yfAPcXW1BPeQ6wp5eGiaNpzXOOw%3D" />
D:<img id="ODrzcofTEMP20200515074111685.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODrzcofTEMP20200515074111685.png?Expires=1904902871&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=j%2Bri0t3RT9zDjwlsscVZ5WuZgag%3D" />

<img id="ODjuuciTEMP20200515074111861.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODjuuciTEMP20200515074111861.png?Expires=1904902871&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=ckf5kLQvLHEpgguliC06ORGUcTE%3D" />
A:<img id="ODnanjjTEMP20200515074111955.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODnanjjTEMP20200515074111955.png?Expires=1904902872&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=eP0MdKLZfr/nnUaUJtPPQwj7OEg%3D" />
B:(1-x)+C
C:x+C
D:<img id="ODbnjdiTEMP20200515074112109.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODbnjdiTEMP20200515074112109.png?Expires=1904902872&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=xuLby6ZcgE8BWtR/9hIsSW4etAw%3D" />

设函数f(x)在[a,b]上连续，则下列等式中正确的是
A:<img id="ODdcpgjTEMP20200515074112284.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODdcpgjTEMP20200515074112284.png?Expires=1904902872&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=LDysLDOoTpn7GWx6Ap4hZMCibj8%3D" />
B:<img id="ODhmvgpTEMP20200515074112409.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODhmvgpTEMP20200515074112409.png?Expires=1904902872&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=E%2BO0W7dp%2B85Oe8gUX4owvxTiSy0%3D" />
C:<img id="ODsgtykTEMP20200515074112544.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODsgtykTEMP20200515074112544.png?Expires=1904902872&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=plMMYJ8Lw2%2B%2B4B0VInq%2B%2BGtdGqQ%3D" />
D:<img id="ODcyoeeTEMP20200515074112697.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODcyoeeTEMP20200515074112697.png?Expires=1904902872&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=sgg9spIFhM6UzDEJuALmjFMtE%2Bw%3D" />

<img id="ODljovwTEMP20200515074112823.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODljovwTEMP20200515074112823.png?Expires=1904902872&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Q6egNZDNW9Z5E2hHsqttE60LBGY%3D" />
A:1/2
B:1
C:2
D:0

<img id="ODhfyurTEMP20200515074113006.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODhfyurTEMP20200515074113006.png?Expires=1904902873&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=ugdnag9zJW6HjHXXwo4zuK73jh0%3D" />
A:1
B:2
C:3
D:4

<img id="ODpwewqTEMP20200515074113115.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODpwewqTEMP20200515074113115.png?Expires=1904902873&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=q4wdIMj6ZokJAqu3eEusbRUEioo%3D" />
A:y/x
B:-y/x
C:x/y
D:-x/y

函数y=-(x²)在点x=0处
A:有极大值
B:不是驻点
C:无极值
D:有极小值

<img id="ODfgqefTEMP20200515074113261.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODfgqefTEMP20200515074113261.png?Expires=1904902873&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=T0Rvl7k3kYlmhsaQgRS9r6m40iM%3D" />
A:1
B:-1
C:2
D:-2

<img id="ODcinjjTEMP20200515074113444.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODcinjjTEMP20200515074113444.png?Expires=1904902873&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=FKUTcxw3ERQ4knoA%2BvpUkeye5/g%3D" />
A:e
B:0
C:e²

<img id="ODtitwgTEMP20200515074113590.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODtitwgTEMP20200515074113590.png?Expires=1904902873&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=KsZ7In40poeVvDQttM1H/g%2B2eG4%3D" />
A:x≠1的一切实数
B:x≠0的一切实数
C:x≠0,x≠1
D:x为实数

不等式｜3-2x｜＜1等价的区间是
A:[1,2]
B:(1,2)
C:(0,1)
D:(2,3)

<img id="ODqpklaTEMP20200515074113684.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODqpklaTEMP20200515074113684.png?Expires=1904902873&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=rT%2BXrtABaiv199x50JEzThfATHU%3D" />
A:<img id="ODjagdjTEMP20200515074113825.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODjagdjTEMP20200515074113825.png?Expires=1904902874&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=z40wj7rz/KrPVfTf4AnZpjpllDs%3D" />
B:<img id="ODlovncTEMP20200515074114224.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODlovncTEMP20200515074114224.png?Expires=1904902874&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=wwO1NynllW8pz9Gam1I7xhphyAo%3D" />
C:<img id="ODgosvsTEMP20200515074114383.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODgosvsTEMP20200515074114383.png?Expires=1904902874&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=GqbeIJW0CgR0KZFCMhA2r8RtHzI%3D" />
D:<img id="ODxdfphTEMP20200515074114478.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODxdfphTEMP20200515074114478.png?Expires=1904902874&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=NeY1esM/vNxehsdyD2eWxuuf7uY%3D" />

下列函数中为奇函数的是
A:cos 2x
B:x²+x
C:log₂x
D:x³

下列函数中为基本初等函数的是
A:tan 2x
B:x²+x
C:e^x
D:<img id="ODmswjzTEMP20200515074114625.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODmswjzTEMP20200515074114625.png?Expires=1904902874&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=sDWZ7Tvg7muphKa0A8pqaVEsys8%3D" />

函数y=2x+1的反函数是
A:y=(x-1)/2
B:y=2/(x+1)
C:y=(x-1)/(x+2)
D:y=(x+1)/(x-2)

函数f(x)在点x=x₀处有定义是f(x)在x=x₀处连续的
A:充分条件
B:必要条件
C:充分必要条件
D:无关条件

<img id="ODrpthtTEMP20200515074114768.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODrpthtTEMP20200515074114768.png?Expires=1904902874&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=MdAPjsrAbQrIb4vU0F48xEssPRU%3D" />
A:高阶无穷小
B:低阶无穷小
C:同阶但不等价的无穷小
D:等价无穷小

<img id="ODcbelmTEMP20200515074114895.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODcbelmTEMP20200515074114895.png?Expires=1904902875&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=qGM4PaycajjD8eCfYVkD%2Bdbb2So%3D" />
A:<img id="ODqvucrTEMP20200515074115057.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODqvucrTEMP20200515074115057.png?Expires=1904902875&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=ofXvhCKSNHxqJwT94DVZu2xj4xQ%3D" />
B:<img id="ODsrsoeTEMP20200515074115191.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODsrsoeTEMP20200515074115191.png?Expires=1904902875&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=BtThGB0JygnKLdv8XsTR0zh%2Bqgo%3D" />
C:<img id="ODmfakaTEMP20200515074115329.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODmfakaTEMP20200515074115329.png?Expires=1904902875&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=35WRGwdiNswbVajovPUPsX7DwwA%3D" />
D:<img id="ODbetluTEMP20200515074115513.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODbetluTEMP20200515074115513.png?Expires=1904902875&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=5pFk0fxQgtOnf0lsCg0aY1/5BM8%3D" />

<img id="ODjwfyyTEMP20200515074115646.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODjwfyyTEMP20200515074115646.png?Expires=1904902875&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=0QVqEwyWRwDnKeaEqx4vrpXsAfY%3D" />
A:<img id="ODuhdhdTEMP20200515074115859.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODuhdhdTEMP20200515074115859.png?Expires=1904902875&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=6ptsXpRYJGwVolIvQFzUkdOhEI4%3D" />
B:e/2
C:e
D:<img id="ODptaexTEMP20200515074116001.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2020/0515/ODptaexTEMP20200515074116001.png?Expires=1904902876&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=NK2vJyNNmgJwLwT/tXf/TZ7oqKQ%3D" />