《微积分(二)》地大模拟答案
《微积分(二)》考前练兵1.[单选题] <img id="ODevmtrTEMP20200722113552280.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODevmtrTEMP20200722113552280.png?Expires=1910748952&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=btAwJO05plJHaSy3zVlvz09fVX0%3D" />,则<img id="ODbsdbvTEMP20200722113552666.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODbsdbvTEMP20200722113552666.png?Expires=1910748952&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=h%2B/sc2LD%2Balibh8NhTA9nwrVndI%3D" />()
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A.2(1-x2)2+c
B.-2(1-x2)2+c
C.-1/2(1-x2)2+c
D.1/2(1-x2)2+c
答:——C——
2.[单选题] 设<img id="ODyftlhTEMP20200722113552925.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODyftlhTEMP20200722113552925.png?Expires=1910748953&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=GYr3gC0U8p2SBaHlkCUrxFyszwU%3D" />,则<img id="ODdyqnxTEMP20200722113553154.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODdyqnxTEMP20200722113553154.png?Expires=1910748953&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=P1uoMENzagDhX/oXxCgH6nllhLc%3D" />()
A.-1/x+c
B.1/x+c
C.lnx+c
D.-lnx+c
答:——B——
3.[单选题] <img id="ODuchcsTEMP20200722113553519.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODuchcsTEMP20200722113553519.png?Expires=1910748953&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=KBfunIc2RSHV8oSHFvxZdAiOnHI%3D" />,则f(x)=()
A.2xe2x
B.2x2e2x
C.Xe2x(2+x)
D.2xe2x(1+x)
答:——D——
4.[单选题] 已知<img id="ODaksoyTEMP20200722113553738.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODaksoyTEMP20200722113553738.png?Expires=1910748953&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=lV3EtSZYlJkDAikhLZLBTo4TOg4%3D" />,则下列式子中正确的是()
A.<img id="ODerngcTEMP20200722113554106.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODerngcTEMP20200722113554106.png?Expires=1910748954&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=%2Bar4udfElyp9ngkkMO8GN5Lc/l4%3D" />
B.<img id="ODofmfsTEMP20200722113554409.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODofmfsTEMP20200722113554409.png?Expires=1910748954&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=FdtP7VFgd2D1abaKRNR0wGZFdCI%3D" />,<img id="ODzqnbyTEMP20200722113554646.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODzqnbyTEMP20200722113554646.png?Expires=1910748954&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=jz%2B4wfVSEyA/rShvEjG9%2Bp84%2B/g%3D" />
C.<img id="ODaeoshTEMP20200722113554884.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODaeoshTEMP20200722113554884.png?Expires=1910748955&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=DF3g7AkaCX5lHY2ymhJTAuVALAA%3D" />,<img id="ODoicccTEMP20200722113555174.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODoicccTEMP20200722113555174.png?Expires=1910748955&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=b1O0KEyWz%2BY4qcWhbKD1K7oDaZc%3D" />+c
D.<img id="ODdxiewTEMP20200722113555435.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODdxiewTEMP20200722113555435.png?Expires=1910748955&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=eUAi/eCr2ICE3yFqY6zFHZjFMSA%3D" />
答:————
5.[单选题] 已知<img id="ODxbkwaTEMP20200722113555657.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODxbkwaTEMP20200722113555657.png?Expires=1910748955&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=sZZVxgyT1N7Nc0HeNCscxWUVOzE%3D" />,则f(x)=()
A.<img id="ODjfkmeTEMP20200722113555860.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODjfkmeTEMP20200722113555860.png?Expires=1910748956&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=LaHDXEeht2TQeyd%2BwoilhPckmGU%3D" />
B.<img id="ODqagyhTEMP20200722113556075.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODqagyhTEMP20200722113556075.png?Expires=1910748956&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=KYiZqPlndGvN6B2biB831aBAw74%3D" />
C.<img id="ODzglirTEMP20200722113556252.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODzglirTEMP20200722113556252.png?Expires=1910748956&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=DjDi9CSp%2BhAL%2BJw2gYEZWcw4xHI%3D" />
D.<img id="ODxhmdvTEMP20200722113556447.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODxhmdvTEMP20200722113556447.png?Expires=1910748956&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Yav9SZgE/fpT59mcjvj8bl32WVU%3D" />
答:————
6.[单选题] 已知F(x)是sinx2的一个原函数,则dF(x2)=()
A.2xsinx4dx
B.Sinx4dx
C.2xsinx2dx
D.sinx2dx2
答:————
7.[单选题] 若<img id="ODxnkdgTEMP20200722113556673.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODxnkdgTEMP20200722113556673.png?Expires=1910748956&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=yxw%2BOGS4QVb//V3P1Bmb4wyzLbg%3D" />,则f(x)=()
A.sinx-1/2sin2x+c
B.x-1/2x2+c
C.1/2x2-x+c
D.cosx-sinx+c
答:————
8.[单选题] <img id="ODukeloTEMP20200722113556905.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODukeloTEMP20200722113556905.png?Expires=1910748957&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=SofUUXKo5hSnaYNN8I%2BELfGoZZA%3D" />()
A.–cotx+tanx+c
B.tanx+cotx+c
C.2cot2x+c
D.2tan2x+c
答:————
9.[单选题] 若<img id="ODpvjmwTEMP20200722113557148.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODpvjmwTEMP20200722113557148.png?Expires=1910748957&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=dIDs5ooad9NluEzrbreeBZGqJuk%3D" />(x)=f(x),则<img id="ODnwzcsTEMP20200722113557345.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODnwzcsTEMP20200722113557345.png?Expires=1910748957&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=y4pcmW0CdtcLHqzg/9n5jXMgVc0%3D" />()
A.f(x)
B.F(x)
C.f(x)+c
D.F(x)+c
答:————
10.[单选题] 下列哪个表达式等于f(x)()
A.<img id="ODuygrlTEMP20200722113557516.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODuygrlTEMP20200722113557516.png?Expires=1910748957&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Xs4xBtn2bJlSm1dj45kf/E5i3JI%3D" />
B.<img id="ODrnwmsTEMP20200722113557686.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODrnwmsTEMP20200722113557686.png?Expires=1910748957&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=RlSxh2MvaGROB/Teu0xNrPUZMqk%3D" />
C.<img id="ODijimqTEMP20200722113557879.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODijimqTEMP20200722113557879.png?Expires=1910748958&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Dir3FBbgwF3kMkjiZkTJI0V/OaY%3D" />
D.<img id="ODcknndTEMP20200722113558148.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODcknndTEMP20200722113558148.png?Expires=1910748958&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=pNSi5Gjz00GcIEA4u9njpea7qO8%3D" />
答:————
11.[单选题] 若f(x)的导函数是sinx,则f(x)有一个原函数为().
A.1+sinx
B.1-sinx
C.1+cosx
D.1-cosx
答:————
12.[单选题] 当被积函数含有<img id="ODwniusTEMP20200722113558354.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODwniusTEMP20200722113558354.png?Expires=1910748958&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=zNRufHOMlxoO14IzxXmEip4UbJg%3D" />时,可考虑令x=()
A.asint
B.atant
C.asect
D.accost
答:————
13.[单选题] 欲使<img id="ODsbfylTEMP20200722113558549.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODsbfylTEMP20200722113558549.png?Expires=1910748958&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=YGXbu45lVDL9oFnL5sbz32bs08M%3D" />,对常数λ有何限制?()
A.没有限制
B.λ≠0
C.λ>0
D.λ≤0
答:————
14.[单选题] 设<img id="ODbmwphTEMP20200722113558749.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODbmwphTEMP20200722113558749.png?Expires=1910748958&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=o88CDrq8Pdd79iZH0UWASUM4W7k%3D" />,则()
A.<img id="ODdtmvxTEMP20200722113558962.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODdtmvxTEMP20200722113558962.png?Expires=1910748959&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=0HrUKpveFGSscjD2wKDxpHeOJqw%3D" />
B.<img id="ODfdydbTEMP20200722113559144.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODfdydbTEMP20200722113559144.png?Expires=1910748959&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=sFvExAxOSG3zoGrTJ3z4mibT5bw%3D" />
C.<img id="ODwhduyTEMP20200722113559349.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODwhduyTEMP20200722113559349.png?Expires=1910748959&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=u1vTvtmr2lysA5EgFBrPAXkw%2BbY%3D" />
D.<img id="ODsvwriTEMP20200722113559568.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODsvwriTEMP20200722113559568.png?Expires=1910748959&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=BLAhUspNpy8e5A1rj9Ih9UM4Q8Q%3D" />
答:————
15.[单选题] 设<img id="ODfksdrTEMP20200722113559819.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODfksdrTEMP20200722113559819.png?Expires=1910748959&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=AbO9ouQ4n6JkklXhQTHoWprmN7c%3D" />则()
A.<img id="ODncornTEMP20200722113600012.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODncornTEMP20200722113600012.png?Expires=1910748960&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=gx%2B4Wxu7KdSo8RWebhRvo47SUWk%3D" />
B.<img id="ODemlxfTEMP20200722113600242.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODemlxfTEMP20200722113600242.png?Expires=1910748960&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=/QP0177rJxizKD4qB8GZ5r/Usiw%3D" />
C.<img id="ODbosekTEMP20200722113600482.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODbosekTEMP20200722113600482.png?Expires=1910748960&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=0B7XgZ99maz0c%2BK1Kb/h4Htx9VI%3D" />
D.<img id="ODnbyunTEMP20200722113600702.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODnbyunTEMP20200722113600702.png?Expires=1910748960&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=mSoSJCnuCIb9aCdmYcbkpn7ZeTQ%3D" />
答:————
16.[单选题] <img id="ODxrroxTEMP20200722113600891.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODxrroxTEMP20200722113600891.png?Expires=1910748961&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=j7qaDgjJN6gD6gLdRCFdjstrwjY%3D" />,则I=()
A.<img id="ODvosqeTEMP20200722113601090.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODvosqeTEMP20200722113601090.png?Expires=1910748961&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Vxg/y2aYDLHKcgFvdUWKclIbxa0%3D" />
B.<img id="ODmojedTEMP20200722113601344.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODmojedTEMP20200722113601344.png?Expires=1910748961&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=O1Siy9VRyPv2OMxjPBoG9HWA6mE%3D" />
C.<img id="ODedilfTEMP20200722113601810.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODedilfTEMP20200722113601810.png?Expires=1910748961&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=l/7JDMMVdJ2FwdPsMTyiF5JEA14%3D" />
D.<img id="ODvorjjTEMP20200722113602033.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODvorjjTEMP20200722113602033.png?Expires=1910748962&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=JdQJfNTmUxAd9QS/%2B5Lrpc9dmCM%3D" />
答:————
17.[单选题] 已知函数f(x+y,x-y)=x2-y2,则f(x,y)/x+f(x,y)/y=()
A.2x-2y
B.2x+2y
C.x+y
D.x-y
答:————
18.[单选题] 点()是二元函数z=x3-y3+3x3+3y2-9x的极大值点
A.(1,0)
B.(1,2)
C.(-3,0)
D.(-3,2)
答:————
19.[单选题] 函数<img id="ODdrresTEMP20200722113602261.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODdrresTEMP20200722113602261.png?Expires=1910748962&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=t9HcG3c9KuR/4qkKcIoOrVaSO54%3D" />的定义域是()
A.x+y≠0
B.x+y>0
C.x+y≠1
D.x+y>0且x+y≠1
答:————
20.[单选题] 设函数<img id="ODqfhkaTEMP20200722113602472.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODqfhkaTEMP20200722113602472.png?Expires=1910748962&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=783wagT5ssuLnM5PKOe5c3TneXg%3D" />,则y有()
A.极小值1/2
B.极小值-1/2
C.极大值1/2
D.极大值-1/2
答:————
21.[单选题] 若<img id="ODiojmeTEMP20200722113602698.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODiojmeTEMP20200722113602698.png?Expires=1910748962&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Y%2B1XDBZakHXAx4hO/EsP69PDYTY%3D" />,则k=()
A.0
B.-1
C.1
D.1/2
答:————
22.[单选题] <img id="ODnrgmgTEMP20200722113602954.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODnrgmgTEMP20200722113602954.png?Expires=1910748963&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=7kshedtZbVI7L4463sbkBU1k4Bk%3D" />()
A.-2
B.2
C.0
D.发散
答:————
23.[单选题] 当()时,广义积分<img id="ODywlamTEMP20200722113603215.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODywlamTEMP20200722113603215.png?Expires=1910748963&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=nUYJQvppvBtsQ12s8n%2BXw0OlrO4%3D" />收敛
A.k>0
B.k≥0
C.k<0
D.k≤0
答:————
24.[单选题] 设f(x)是连续函数,F(x)是f(x)的原函数,则()
A.当f(x)是奇函数时,F(x)必是偶函数
B.当f(x)是偶函数时,F(x)必是奇函数
C.当f(x)是周期函数时,F(x)必是周期函数
D.当f(x)是单调函数时,F(x)必是单调函数
答:————
25.[单选题] 若<img id="ODzzzixTEMP20200722113603473.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODzzzixTEMP20200722113603473.png?Expires=1910748963&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=aFF9ot5aaCv41Y//uKdkPK5OSBA%3D" />,则f(x)=()
A.2xe2x
B.2x2e2x
C.xe2x
D.2xe2x(1+x) q1647861640答案点击 ap5u.com
答:————
26.[单选题] 直线l<sub>1</sub>:<img id="ODjenzeTEMP20200722113603624.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODjenzeTEMP20200722113603624.png?Expires=1910748963&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=c2d49A4Yqo2tTZyC7qgDmsc%2BkyQ%3D" />与直线l<sub>2</sub>:<img id="ODhsbbhTEMP20200722113603780.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODhsbbhTEMP20200722113603780.png?Expires=1910748963&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=9BxS0gFxPQPg2i5%2BfZMTBqqSVlc%3D" />的夹角为().
A.<img id="ODegpwbTEMP20200722113603980.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODegpwbTEMP20200722113603980.png?Expires=1910748964&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=tKKyNKz2MTdQHAaLs3gFUhl4IYg%3D" />
B.<img id="ODklsfkTEMP20200722113604164.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODklsfkTEMP20200722113604164.png?Expires=1910748964&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=q5vzVzapZqHcN9pL9NMBrhQPT/0%3D" />
C.<img id="ODngbylTEMP20200722113604300.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODngbylTEMP20200722113604300.png?Expires=1910748964&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=93Yy%2BEmDSLV17qxNFZ4WMOJbo/0%3D" />
D.<img id="ODpsugpTEMP20200722113604471.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODpsugpTEMP20200722113604471.png?Expires=1910748964&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=ILo7z5ny41t2vrtQPFFHRrAnCYk%3D" />
答:————
27.[单选题] 下列哪一个不是sin2x的原函数().
A.<img id="ODopqupTEMP20200722113604862.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODopqupTEMP20200722113604862.png?Expires=1910748965&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Ylqfoe6J5ZUaR/Qs1NtuUt0fIbA%3D" />
B.<img id="ODkgfhuTEMP20200722113605043.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODkgfhuTEMP20200722113605043.png?Expires=1910748965&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=iK5t9TVzbuo8tm4xiUqsSdYMNDw%3D" />
C.<img id="ODpvwddTEMP20200722113605224.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODpvwddTEMP20200722113605224.png?Expires=1910748965&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=NifSWja5dFnGN3GfA0rbogsAoak%3D" />
D.<img id="ODtisstTEMP20200722113605405.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODtisstTEMP20200722113605405.png?Expires=1910748965&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=VQ6HdXZuiuxlkrijak6UMMUPnWk%3D" />
答:————
28.[单选题] <img id="ODezbilTEMP20200722113605580.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODezbilTEMP20200722113605580.png?Expires=1910748965&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=1kT9K2b3w2Su1X75wgtKchXblm8%3D" />().
A.<img id="ODovdclTEMP20200722113605745.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODovdclTEMP20200722113605745.png?Expires=1910748965&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=REsfyFuU%2BtCy9RLY8W%2BkpAIgU%2BQ%3D" />
B.<img id="ODsoppnTEMP20200722113605954.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODsoppnTEMP20200722113605954.png?Expires=1910748966&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=P0LWQULSJrf8UyNkFjvovlk9jeo%3D" />
C.<img id="ODnouecTEMP20200722113606124.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODnouecTEMP20200722113606124.png?Expires=1910748966&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=vNXvdFR1HAk7v/hev9RifTK7m3E%3D" />
D.<img id="ODzbsqrTEMP20200722113606311.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODzbsqrTEMP20200722113606311.png?Expires=1910748966&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=tzAJH7bVgU3SmhrxxmO08GS1ylI%3D" />
答:————
29.[单选题] 下列级数中,发散的级数是().
A.<img id="ODbrhmnTEMP20200722113606490.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODbrhmnTEMP20200722113606490.png?Expires=1910748966&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=qNCuHDoGBah17%2BDZG3SlLiejXIs%3D" />
B.<img id="ODosbbfTEMP20200722113606664.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODosbbfTEMP20200722113606664.png?Expires=1910748967&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=1f4cFRkuXX/B75CmE7Q6/D04S/U%3D" />
C.<img id="ODnybpiTEMP20200722113607040.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODnybpiTEMP20200722113607040.png?Expires=1910748967&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=TwtIgOdDSQqVxiAUJ1yR2XLybps%3D" />
D.<img id="ODcdmfzTEMP20200722113607212.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODcdmfzTEMP20200722113607212.png?Expires=1910748967&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=opuX4c0fvaf/PV/dKuAmOn%2ByLIc%3D" />
答:————
30.[单选题] 设<img id="ODzsgtdTEMP20200722113607405.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODzsgtdTEMP20200722113607405.png?Expires=1910748967&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Vc3DyVWNbINwBtisOggZT84AVXI%3D" />,则<img id="ODaynubTEMP20200722113607592.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODaynubTEMP20200722113607592.png?Expires=1910748967&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=XD9L/3%2BOWBwHRCbp5MsYT9mgYQo%3D" />在点O(0,0)处().
A.偏导数存在,函数不连续
B.偏导数不存在,函数连续
C.偏导数存在,函数连续
D.偏导数不存在,函数不连续
答:————
31.[单选题] <img id="ODklhzhTEMP20200722113607778.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODklhzhTEMP20200722113607778.png?Expires=1910748967&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=pvpYPbwwAwIhD7EaVEFxN7RDsO4%3D" />().
A.<img id="ODjdilgTEMP20200722113607942.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODjdilgTEMP20200722113607942.png?Expires=1910748968&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=EwUSdoJ380DDYQBxuUY9BTQKWuQ%3D" />
B.<img id="ODxgrlfTEMP20200722113608081.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODxgrlfTEMP20200722113608081.png?Expires=1910748968&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=cgvuXUuQBL4AdYve5EvUNeynM3I%3D" />
C.<img id="ODawnawTEMP20200722113608249.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODawnawTEMP20200722113608249.png?Expires=1910748968&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=b26/fVlrwalPiuHtSP0pjr6Khro%3D" />
D.<img id="ODpfccjTEMP20200722113608432.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODpfccjTEMP20200722113608432.png?Expires=1910748968&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=DlwVC6hgjn7vZQC4iaAsczQakHY%3D" />
答:————
32.[单选题] 设<img id="ODzryjpTEMP20200722113608598.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODzryjpTEMP20200722113608598.png?Expires=1910748968&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Zk9ueiwNmOTT3Zhzpr6vgS5Q7XQ%3D" />,则<img id="ODqzgwyTEMP20200722113608771.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODqzgwyTEMP20200722113608771.png?Expires=1910748968&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=iHyeMYb03sTPwS2rC965iAmZZb8%3D" />有().
A.极小值2-e
B.极小值e-2
C.极大值2-e
D.极大值e-2
答:————
33.[单选题] <img id="ODalqunTEMP20200722113608963.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODalqunTEMP20200722113608963.png?Expires=1910748969&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=IzIDVnWps4wW22KJOiu7TbLdnXs%3D" />().
A.<img id="ODnnpctTEMP20200722113609111.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODnnpctTEMP20200722113609111.png?Expires=1910748969&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=hkM%2BEDa8dN9Yzk/J3RChT4yQzlc%3D" />
B.<img id="ODbgipiTEMP20200722113609286.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODbgipiTEMP20200722113609286.png?Expires=1910748969&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=4AxIGpQvelPtPSgHunsa0FPeWeI%3D" />
C.<img id="ODdfmepTEMP20200722113609435.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODdfmepTEMP20200722113609435.png?Expires=1910748969&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Q/bx3c8CtBCxKIu5uy7iBINCCeM%3D" />
D.<img id="ODcibmaTEMP20200722113609606.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODcibmaTEMP20200722113609606.png?Expires=1910748969&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=zF1SHLxod8Mq%2BviAhIi%2Bk4HdDn4%3D" />
答:————
34.[单选题] 若<img id="ODgcahvTEMP20200722113609764.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODgcahvTEMP20200722113609764.png?Expires=1910748969&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=7xm1bGR6fvbs165wZOH4PsSo/Qk%3D" />,则<img id="ODvtqusTEMP20200722113609950.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODvtqusTEMP20200722113609950.png?Expires=1910748970&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=6kL8BUSLv5KxxZPAlDZOphtoDAk%3D" />().
A.<img id="ODjubwmTEMP20200722113610118.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODjubwmTEMP20200722113610118.png?Expires=1910748970&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=ZWxrK3ukuFUOkgBAw9dTvwK5hlQ%3D" />
B.<img id="ODcczouTEMP20200722113610287.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODcczouTEMP20200722113610287.png?Expires=1910748970&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=xw/%2BZmljxVUkXEZFytOrA5arNSE%3D" />
C.<img id="ODzcfxlTEMP20200722113610528.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODzcfxlTEMP20200722113610528.png?Expires=1910748970&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=H%2BO3NgMiuUmF6J2PVGCaFTHWTnI%3D" />
D.<img id="ODrztnlTEMP20200722113610672.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODrztnlTEMP20200722113610672.png?Expires=1910748970&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=pbjJ4EcTYI/zfv/cDeF0HiTueGQ%3D" />
答:————
35.[单选题] 设<img id="ODatmvdTEMP20200722113610897.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODatmvdTEMP20200722113610897.png?Expires=1910748971&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Xmr8RauBCBMA9VIVCuu/HCo58J8%3D" />,则<img id="ODdcgynTEMP20200722113611062.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODdcgynTEMP20200722113611062.png?Expires=1910748971&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=mO7HPB7KUR3CPmr/YI%2Bs/tH%2BHgc%3D" />().
A.<img id="ODeaevcTEMP20200722113611225.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODeaevcTEMP20200722113611225.png?Expires=1910748971&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=5s5zAR0BqoY6yd7QjE5aex1S7/M%3D" />
B.<img id="ODykyrsTEMP20200722113611371.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODykyrsTEMP20200722113611371.png?Expires=1910748971&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=dNogfybR30TzjoQznNNsHzP7eTo%3D" />
C.<img id="ODsxoobTEMP20200722113611549.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODsxoobTEMP20200722113611549.png?Expires=1910748971&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Xoq8yz/ItHQnVq16H%2BmZBjlgS0k%3D" />
D.<img id="ODzlzxwTEMP20200722113611706.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODzlzxwTEMP20200722113611706.png?Expires=1910748971&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=qk1EH0/woEtHoTuSnc/h3NOi8h4%3D" />
答:————
36.[单选题] 已知F(x)是sinx2的一个原函数,则dF(x2)=().
A.2xsinx4dx
B.sinx4dx
C.2xsinx2dx
D.sinx2dx2
答:————
37.[单选题] 若f’(sin2x)=cos2x,则f(x)=().
A.sinx-?sin2x+c
B.x-?x2+c
C.?x2-x+c
D.cosx-sinx+c
答:————
38.[单选题] 若F’(x)=f(x),则<img id="ODtkppxTEMP20200722113611866.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODtkppxTEMP20200722113611866.png?Expires=1910748971&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=XmEi1ihgr2piUwkaGxgHZwU8hqs%3D" />=().
A.F(x)
B.f(x)
C.f(x)+c
D.F(x)+c
答:————
39.[单选题] <img id="ODwuvmcTEMP20200722113612058.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODwuvmcTEMP20200722113612058.png?Expires=1910748972&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=9XkNoZuzIUVNy%2B4luqvGHStLuZA%3D" />=().
A.-cotx+tanx+c
B.tanx+cotx+c
C.2cot2x+c
D.2tan2x+c
答:————
40.[单选题] 若<img id="ODaemnhTEMP20200722113612297.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODaemnhTEMP20200722113612297.png?Expires=1910748972&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=zJjEuKSXu3z7%2B%2BmZ3DHsj/tUM9k%3D" />,则<img id="ODaewclTEMP20200722113612501.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODaewclTEMP20200722113612501.png?Expires=1910748972&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=vMHMqfSgR3k0HYAh%2B1DwB3C5coc%3D" />等于().
A.2(1-x2)2+c
B.2(2-x2)dx
C.-?(2-x2)2+c
D.-?(1-x2)2+c
答:————
41.[单选题] 初等函数y=f(x)在其定义域上一定().
A.连续
B.可导
C.可微
D.不连续
答:————
42.[单选题] 函数z=xy在(0,0)点处一定为()
A.极大值
B.极小值
C.无法确定
D.不取得极值
答:————
43.[单选题] 微分方程<img id="ODuffpeTEMP20200722113612710.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODuffpeTEMP20200722113612710.png?Expires=1910748972&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=5lYQkVcWoopnzqQQulm8nkMFHjg%3D" />的一个特解应有形式(式中a,b为常数)()
A.aex+b
B.axex+bx
C.aex+bx
D.axex+b
答:————
44.[单选题] 二元函数z=f(x,y)在点(x0,y0)的偏导数存在,是在该点可微的()
A.充分条件
B.必要条件
C.充要条件
D.无关条件
答:————
45.[单选题] 若f(x,y)在点(0,0)的两个偏导数存在,则f(x,y)在点(0,0)()
A.连续且可微
B.连续但不一定可微
C.可微但不一定连续
D.不一定可微也不一定连续
答:————
46.[单选题] 曲线y=2x/1-x2的渐近线条数为()
A.0
B.1
C.2
D.3
答:————
47.[单选题] 试求<img id="ODgkwjtTEMP20200722113612962.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODgkwjtTEMP20200722113612962.png?Expires=1910748973&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=e/qEVsyRJcbbTQuBx38OOXHfjKU%3D" />等于()
A.-1/4
B.0
C.1
D.∞
答:————
48.[单选题] 设f(x)定义域为(1,2),则f(lgx)的定义域为()
A.(0,lg2)
B.(0,lg2]
C.(10,100)
D.(1,2)
答:————
49.[单选题] 积分<img id="ODwyhmnTEMP20200722113613158.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODwyhmnTEMP20200722113613158.png?Expires=1910748973&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=0Dv5IMjiTjtUrb6rCvcv%2B3qZivY%3D" />与()有关
A.s,t,x
B.s,t
C.x,t
D.s
答:————
50.[单选题] <img id="ODgrmvzTEMP20200722113613314.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODgrmvzTEMP20200722113613314.png?Expires=1910748973&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=CMTCai4lpoDbz08Xo9vDV5MW2xE%3D" />,则k=()
A.1
B.2
C.ln2
D.1/2ln2D
答:————
51.[单选题] .<img id="ODiggdlTEMP20200722113613544.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODiggdlTEMP20200722113613544.png?Expires=1910748973&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=7bXp84vFuTgl4EzktMAdNislG74%3D" />()
A.1
B.2
C.4
D.3
答:————
52.[问答题] 求一阶线性微分方程<img id="ODetqmjTEMP20200722113613720.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODetqmjTEMP20200722113613720.png?Expires=1910748973&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=8Aku6ZiWj7jtahJUe3wVXAwlhTs%3D" />的通解.
答:————
53.[问答题] 计算二重积分<img id="ODutvjnTEMP20200722113614592.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODutvjnTEMP20200722113614592.png?Expires=1910748974&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Ykm4h/WMrFI2jS2YJqSza/CVmZQ%3D" />,其中D是圆环域<img id="ODtnlyaTEMP20200722113614762.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODtnlyaTEMP20200722113614762.png?Expires=1910748974&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=3TByjCrbenn2oP51hIQoAxQG26I%3D" />.
答:————
54.[问答题] 求幂级数<img id="ODbfcuyTEMP20200722113615610.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODbfcuyTEMP20200722113615610.png?Expires=1910748975&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=3Xut/CQY8qnvijc6/PpaBv0RdZ0%3D" />的收敛域,并求出它的和函数.
答:————
55.[问答题] 设<img id="ODffxkgTEMP20200722113621713.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODffxkgTEMP20200722113621713.png?Expires=1910748981&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=ipvB/MTlxgugDO8m35qNA%2B08z7s%3D" />为二元可微函数,又假设<img id="ODwghwnTEMP20200722113621987.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODwghwnTEMP20200722113621987.png?Expires=1910748982&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Sx8J/KFPWhApTs4RJIStd8UZLDU%3D" />,试证明:<br><img id="ODvoicxTEMP20200722113622162.png" src="http://aseancdn.open.com.cn/zyglpt/OD/TEMP/2020/0722/ODvoicxTEMP20200722113622162.png?Expires=1910748982&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=FmmjZ0LbtWYToY%2Bv/Ki3l4NR3VU%3D" />
答:————
56.[问答题] 要制造一个带盖的长方体水槽,已知它的底部和顶部造价为每平方米18元,侧面造价为每平方米6元,设计的总造价为216元,问如何选取它的尺寸,才能使水槽的容积最大?最大容积为多少?
答:————
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