【单选题】【消耗次数:1】
<img src=https://huaweicloudobs.ahjxjy.cn/5017432337269C430CC3A4A17E2AC615.png title=61QXJ)FC[`)YK4]1AGCO[LA.png alt=61QXJ)FC[`)YK4]1AGCO[LA.png/>可导,且<img src=https://huaweicloudobs.ahjxjy.cn/28A1C64F79C74DBFF873BA1549380E3D.png title=P$6O3FY[TZ4{E)TLDDE_@3N.png alt=P$6O3FY[TZ4{E)TLDDE_@3N.png/>时,<img src=https://huaweicloudobs.ahjxjy.cn/D83A7CC479BD99A14A84FF84CAE894C9.png title=6HXA_G0_W5A8`K(4F39~_XX.png alt=6HXA_G0_W5A8`K(4F39~_XX.png/>,则( )
<img src=https://huaweicloudobs.ahjxjy.cn/AE8AD0CFDA090ACB3030E5F69C5F2B22.png title=0%I`GCMUUQ4UJ_V5XHVRVVR.png alt=0%I`GCMUUQ4UJ_V5XHVRVVR.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/C2A2B40511744F5A314F4AD0C6EC0012.png title=XS$(CCE(]7QO~ASM(J~[EY1.png alt=XS$(CCE(]7QO~ASM(J~[EY1.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/007E6052E314D202EBDA5E4B05D76182.png title={M4CAES6I)9F(1(A)PW$[I8.png alt={M4CAES6I)9F(1(A)PW$[I8.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/EB14AC4D2B60A94C1094DB0ECC734CCA.png title=W{[Z62$6VOD{UR`EUD[C2]G.png alt=W{[Z62$6VOD{UR`EUD[C2]G.png/>
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随机题目
【单选题】 It is going to rain. The sky is getting _________ and ________.
①  dark, dark
②  darker and darker
③  darkest and darkest
④  dark and darker
【单选题】 The old man ______ across the street
①  walked
②  was walking
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【单选题】 The boy _______ his hands just now.
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【单选题】 The rich get __________ and the poor get _________.
①  richer, poorer
②  B.
③  richer, poor
④  rich, poor
⑤  rich, poorer
【单选题】 下列函数中,是微分方程<img src=https://huaweicloudobs.ahjxjy.cn/F38A704C30F26A3D943BAE648C24B782.png title=图片22.png alt=图片22.png/>的解的是()
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②  <img src=https://huaweicloudobs.ahjxjy.cn/B45A01DA994ED771A50F14A3C9DE6927.png title=图片24.png alt=图片24.png/>
③  <img src=https://huaweicloudobs.ahjxjy.cn/8795DDC607ED59A1A033CD320F00D252.png title=图片25.png alt=图片25.png/>
④  <img src=https://huaweicloudobs.ahjxjy.cn/B8BD69D97A191A7EAB2B1298B5F9D619.png title=图片26.png alt=图片26.png/>
【单选题】 下列级数中,属于条件收敛的是( )
①  <img src=https://huaweicloudobs.ahjxjy.cn/839662E1C8B743EF41CA74747568423B.png title=图片18.png alt=图片18.png/>
②  <img src=https://huaweicloudobs.ahjxjy.cn/5DE316DD726D15D83E04B8D688037A5F.png title=图片19.png alt=图片19.png/>
③  <img src=https://huaweicloudobs.ahjxjy.cn/DEAEF5A321E07920CF86D02DDA74F9B8.png title=图片20.png alt=图片20.png/>
④  <img src=https://huaweicloudobs.ahjxjy.cn/82BFAC2BC8B6DD3FA8DA4ACAB0CBB063.png title=图片21.png alt=图片21.png/>
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①  等于0
②  不存在
③  等于1/2
④  存在,但不等于0和1/2
【单选题】 曲面<img src=https://huaweicloudobs.ahjxjy.cn/BAECC84A1DAA360C8919AC32520B6081.png title=图片15.png alt=图片15.png/>是( )
①  球面
②  半球面
③  圆锥面
④  半圆锥面
【单选题】 设平面<img src=https://huaweicloudobs.ahjxjy.cn/31A542F228A00D0E0C454891B06C0999.png title=图片10.png alt=图片10.png/>的方程分别为<img src=https://huaweicloudobs.ahjxjy.cn/15780060EFC09696E85F57C13C838872.png title=图片11.png alt=图片11.png/>,则( )
①  <img src=https://huaweicloudobs.ahjxjy.cn/6FD084A684B16B81128226DB7D320E19.png title=图片12.png alt=图片12.png/>与<img src=https://huaweicloudobs.ahjxjy.cn/A6AD1FC6BBAF3C1CE6C912612FEE0DF8.png title=图片13.png alt=图片13.png/>平行
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③  <img src=https://huaweicloudobs.ahjxjy.cn/6FD084A684B16B81128226DB7D320E19.png title=图片12.png alt=图片12.png style=white-space: normal;/>与<img src=https://huaweicloudobs.ahjxjy.cn/6120621973DB1B0F605F96EED984CCD7.png title=图片14.png alt=图片14.png/>平行
④  <img src=https://huaweicloudobs.ahjxjy.cn/6FD084A684B16B81128226DB7D320E19.png title=图片12.png alt=图片12.png style=white-space: normal;/>与<img src=https://huaweicloudobs.ahjxjy.cn/6120621973DB1B0F605F96EED984CCD7.png title=图片14.png alt=图片14.png style=white-space: normal;/>垂直
【单选题】 在切线斜率为2x的积分曲线族中,通过点(1, 4)的曲线为()
①  y = x2+ 3
②  y = x2+ 4
③  y=x2+ 2
④  y=x2+ 1