兰大高等数学(2)《高等数学（2）》21春平时作业3答案

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高等数学(2)《高等数学（2）》21春平时作业3
1.[单选题] 题面见图8<img height="133" width="547" alt="" src="http://file.open.com.cn/ItemDB/37502/42bf1b5e-5588-4786-8cf5-e8d30f3fba6c/2008114103522813.jpg" />
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    A.A
    B.B
    C.C
    D.D
    答:——A——
2.[单选题] 题面见图8<img height="80" width="535" alt="" src="http://file.open.com.cn/ItemDB/37502/7c7352ab-c1ea-4f31-9e07-36118559892c/2008102815495623.jpg" />
    A.A
    B.B
    C.C
    D.D
    答:——C——
3.[单选题] 若在区间（a,b）内恒有<img id="ODxmsgrTEMP20190804111531518.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0804/ODxmsgrTEMP20190804111531518.png?Expires=1880291730&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=5R74kfMfbzeqViv8P4YNNe7kcQA%3D" />,则在（a,b）内曲线弧y=f(x)为（ ).
    A.上升的凸弧
    B.下降的凸弧
    C.上升的凹弧
    D.下降的凹弧
    答:——D——
4.[单选题] 题面见图6<img height="197" width="535" alt="" src="http://file.open.com.cn/ItemDB/37502/8ccf73e2-1537-4b15-9b1d-7f2d01b8b404/20081028154950936.jpg" />
    A.A
    B.B
    C.C
    D.D    更多答案进 ap5u.com 南开 q1647861640
    答:————
5.[单选题] 函数 <img id="ODqqbznTEMP20190804111600958.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0804/ODqqbznTEMP20190804111600958.png?Expires=1880291759&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=x/HouWuX4zoTsn6XF5wwSsx3ENs%3D" />在点(2,2)处的全微分dz为（ ）
    A.<img id="ODacweiTEMP20190804111601107.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0804/ODacweiTEMP20190804111601107.png?Expires=1880291761&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=XC64fD4sopWLXRX6OhKrWJcPDng%3D" />
    B.<img id="ODgjfvkTEMP20190804111600069.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0804/ODgjfvkTEMP20190804111600069.png?Expires=1880291760&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=sQe5wEPck7q3wfEpSdg0R5fh2dM%3D" />
    C.<img id="ODhtfimTEMP20190804111601386.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0804/ODhtfimTEMP20190804111601386.png?Expires=1880291761&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=B7uo3Pyim3KlESKEEcvrjKTi5mE%3D" />
    D.<img id="ODmtmteTEMP20190804111600451.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0804/ODmtmteTEMP20190804111600451.png?Expires=1880291760&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=vkv5gyenfuRH9zn4OAvtIzFBuEA%3D" />
    答:————
6.[单选题] 题面见图9<img height="166" width="497" alt="" src="http://file.open.com.cn/ItemDB/37502/4244e6f4-d68b-4d4d-adfe-bb35e61db301/20081028162916358.jpg" />
    A.A
    B.B
    C.C
    D.D
    答:————
7.[单选题] 题面见图2<img height="92" width="555" alt="" src="http://file.open.com.cn/ItemDB/37502/36306165-54b8-4b7f-bee8-c7618d0c8332/2008114105032139.jpg" />
    A.A
    B.B
    C.C
    D.D
    答:————
8.[单选题] 题面见图7<img height="173" width="551" alt="" src="http://file.open.com.cn/ItemDB/37502/d616204c-0b80-4b06-b7fe-7aacf5d14078/20081028154926670.jpg" />
    A.A
    B.B
    C.C
    D.D
    答:————
9.[单选题] 题面见图7<img height="170" width="484" alt="" src="http://file.open.com.cn/ItemDB/37502/67ebe493-25e3-40a9-808c-76b0bccd865c/20081028162956608.jpg" />
    A.A
    B.B
    C.C
    D.D
    答:————
10.[单选题] 题面见图11<img alt="" src="http://file.open.com.cn/ItemDB/37502/2c8c6955-690e-4ec6-8e74-8f0e6bfaeca9/2008102815454215.jpg" />
    A.A
    B.B
    C.C
    D.D
    答:————
11.[单选题] 题面见图11<img height="159" width="607" alt="" src="http://file.open.com.cn/ItemDB/37502/0b77ed33-7af5-420f-b327-ec37ecfe4156/2008114104721604.jpg" />
    A.A
    B.B
    C.C
    D.D
    答:————
12.[单选题] 题面见图7<img height="176" width="554" alt="" src="http://file.open.com.cn/ItemDB/37502/b0e3d4d7-9203-46f2-8431-0001d9218150/2008114104841449.jpg" />
    A.A
    B.B
    C.C
    D.D
    答:————
13.[单选题] 题面见图2<img alt="" src="http://file.open.com.cn/ItemDB/37502/b1cff4a3-e32c-4b2e-834c-4a56209c4815/20081028163154341.jpg" />
    A.A
    B.B
    C.C
    D.D
    答:————
14.[单选题] 设 <img id="ODshrcsTEMP20190804111558040.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0804/ODshrcsTEMP20190804111558040.png?Expires=1880291758&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=XCMAwMYLMvnlgKg9N45katBwlaE%3D" />在(a,b)内连续，且 <img id="ODijscwTEMP20190804111556990.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0804/ODijscwTEMP20190804111556990.png?Expires=1880291757&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=Dfi7T2fdHu8McvF07IS7Z2Sxpew%3D" />，则在点 <img id="ODtknxpTEMP20190804111558315.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0804/ODtknxpTEMP20190804111558315.png?Expires=1880291758&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=V6fmWYvImhift04x%2BlyZgXdubmc%3D" />处（ ）
    A.<img id="ODtutmlTEMP20190804111558451.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0804/ODtutmlTEMP20190804111558451.png?Expires=1880291757&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=cvGBRZmPwOx9J9lkWGTKLZRZMYM%3D" />的极限存在，且可导
    B.<img id="ODcotbgTEMP20190804111558675.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0804/ODcotbgTEMP20190804111558675.png?Expires=1880291757&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=1zYZEuGaaZZQnTC3WoGjc%2BtqtXQ%3D" />的极限存在，但不一定可导
    C.<img id="ODukftlTEMP20190804111557640.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0804/ODukftlTEMP20190804111557640.png?Expires=1880291757&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=d2zDuQngxVBxkB9NeKXhm3zbB34%3D" />的极限不存在，且可导
    D.<img id="ODhcdktTEMP20190804111557786.png" src="http://oescdn.open.com.cn/zyglpt/OD/TEMP/2019/0804/ODhcdktTEMP20190804111557786.png?Expires=1880291759&OSSAccessKeyId=gbI8DRLk7JJhLbEw&Signature=x3GgMnkcjJi8C7gBJx51wPsVrj0%3D" />的极限不一定存在
    答:————
15.[判断题] 题面见图1-13<img height="77" width="310" alt="" src="http://file.open.com.cn/ItemDB/37502/ad717be2-294f-4abe-a163-8a306d7cadfc/2008102816022947.jpg" />
    A.错误
    B.正确
    答:————
16.[判断题] 题面见图1-16<img height="65" width="460" alt="" src="http://file.open.com.cn/ItemDB/37502/7581c4a4-ccbd-45cd-8158-19747f36f957/20081028155727917.jpg" />
    A.错误
    B.正确
    答:————
17.[判断题] 题面见图1-13<img height="42" width="534" alt="" src="http://file.open.com.cn/ItemDB/37502/2719b4ae-6f15-4d62-90b0-e9f338b8e73c/2008114103935211.jpg" />
    A.错误
    B.正确
    答:————
18.[判断题] 题面见图1-12<img height="62" width="474" alt="" src="http://file.open.com.cn/ItemDB/37502/f9187840-9abe-4e8b-bdd9-f7cf0cdb1dde/200810281610103.jpg" />
    A.错误
    B.正确
    答:————
19.[判断题] 题面见图1-4<img height="88" width="509" alt="" src="http://file.open.com.cn/ItemDB/37502/601d9c02-d427-4c08-a0ec-548b903038e9/2008114105651530.jpg" />
    A.错误
    B.正确
    答:————
20.[判断题] 题面见图1-16<img height="31" width="338" alt="" src="http://file.open.com.cn/ItemDB/37502/6275efcc-167e-4d11-8b1a-4fbf80ef712a/2008114103837452.jpg" />
    A.错误
    B.正确
    答:————

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