我
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一象限的封闭图形．
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(本题满分8分)
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- A.3
- B.2
- C.1
- D.1/2
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下列命题正确的是（ ）．
- A.<img width="229" height="38" src="//img1.yqda.net/question-name/d6/9911719bb41fd3e42f8f39f2e56f9b.png" />
- B.<img width="257" height="37" src="//img1.yqda.net/question-name/6c/fed0504d482df60fc3ec5637516c81.png" />
- C.<img width="239" height="35" src="//img1.yqda.net/question-name/a8/c6a2503b55b3c3674e389765881d5d.png" />
- D.<img width="270" height="38" src="//img1.yqda.net/question-name/54/b69cb334828d3e210311d04f0de509.png" />
- A.e<sup>2</sup>
- B.e
- C.1
- D.1/e
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- A.<img width="55" height="30" src="//img1.yqda.net/question-name/44/4d1297ab95dd26ad2ed4b14a29e13c.png" />
- B.<img width="20" height="15" src="//img1.yqda.net/question-name/b3/d61cb7dc6b3d03fa3167ae8c51f59f.png" />
- C.<img width="38" height="15" src="//img1.yqda.net/question-name/44/46d6d82224699216ad666d749fffa4.png" />
- D.<img width="45" height="15" src="//img1.yqda.net/question-name/90/bc2a25ad8724d57a83b881eda64cfc.png" />
- A.f(x0)必定存在，且f(x0)＝0
- B.f(x0)必定存在，但f(x0)不－定等于零
- C.f(x0)不存在或f(x0)＝0
- D.f(x0)必定不存在
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- A.绝对收敛
- B.条件收敛
- C.发散
- D.收敛性与k有关
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- A. <img src="//img1.yqda.net/question-name/10/2bd39f349d4c6506a72b203183a30e.png" alt="" />
- B. <img src="//img1.yqda.net/question-name/f7/48d016e4c1d178a3f5307eac253c24.png" alt="" />
- C. <img src="//img1.yqda.net/question-name/51/754673a47d2ddc52508979f46109e6.png" alt="" />
- D. <img src="//img1.yqda.net/question-name/fa/982a6a00fa013900f5377d48256d96.png" alt="" />
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- A.<img width="44" height="21" src="//img1.yqda.net/question-name/64/f39ac7e490d617f1c4a15b38506316.png" />
- B.<img width="50" height="20" src="//img1.yqda.net/question-name/ef/b46d79ac33830b6345886192d9ddf8.png" />
- C.<img width="36" height="14" src="//img1.yqda.net/question-name/fc/84c92b6bb8f304a20ea31b6e1e6a43.png" />
- D.<img width="58" height="21" src="//img1.yqda.net/question-name/c4/47acf2d8801d471205024837a17b4d.png" />
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- A.0
- B.1/2
- C.1
- D.2
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- A.导数存在，且有f(a)=一1
- B.导数一定不存在
- C.f(a)为极大值
- D.f(a)为极小值
