设<img src=https://huaweicloudobs.ahjxjy.cn/C67CBDA727FEA56C7AB111CAB6F951AD.png title=QQ图片20160224215718.png alt=QQ图片20160224215718.png width=212 height=25 border=0 vspace=0 style=width: 212px; height: 25px;/>，则（） - 答案查看网

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【单选题】【消耗次数：1】

设<img src=https://huaweicloudobs.ahjxjy.cn/C67CBDA727FEA56C7AB111CAB6F951AD.png title=QQ图片20160224215718.png alt=QQ图片20160224215718.png width=212 height=25 border=0 vspace=0 style=width: 212px; height: 25px;/>，则（）

① <img src=https://huaweicloudobs.ahjxjy.cn/DF3DA077C2189146990B3800DA1E18ED.png title=QQ图片20160224214023.png alt=QQ图片20160224214023.png/>为极值点

② <img src=https://huaweicloudobs.ahjxjy.cn/DF3DA077C2189146990B3800DA1E18ED.png title=QQ图片20160224214023.png alt=QQ图片20160224214023.png/>为驻点

③ <img src=https://huaweicloudobs.ahjxjy.cn/DF3DA077C2189146990B3800DA1E18ED.png title=QQ图片20160224214023.png alt=QQ图片20160224214023.png/>为连续点

④ <img src=https://huaweicloudobs.ahjxjy.cn/EA6FB79FF8DF7A9F3A2D0CEB093C717F.png title=QQ图片20160224214006.png alt=QQ图片20160224214006.png/>在<img src=https://huaweicloudobs.ahjxjy.cn/DF3DA077C2189146990B3800DA1E18ED.png title=QQ图片20160224214023.png alt=QQ图片20160224214023.png/>有定义

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相关题目

【单选题】设<img src=https://huaweicloudobs.ahjxjy.cn/EA6FB79FF8DF7A9F3A2D0CEB093C717F.png title=QQ图片20160224214006.png alt=QQ图片20160224214006.png/>在<img src=https://huaweicloudobs.ahjxjy.cn/DF3DA077C2189146990B3800DA1E18ED.png title=QQ图片20160224214023.png alt=QQ图片20160224214023.png/>的偏导数存在，则<img src=https://huaweicloudobs.ahjxjy.cn/61AF63E59A60D6B49960C25A0B85414F.png title=QQ图片20160224214038.png alt=QQ图片20160224214038.png/>

① <img src=https://huaweicloudobs.ahjxjy.cn/588DCE737E539AFE5318232DBC0C8858.png title=QQ图片20160224214107.png alt=QQ图片20160224214107.png/>

② <img src=https://huaweicloudobs.ahjxjy.cn/1898B210FBB62DA4DA7997BB95A4D586.png title=QQ图片20160224214125.png alt=QQ图片20160224214125.png/>

③ <img src=https://huaweicloudobs.ahjxjy.cn/C9D08ECB097A69F4F22594D120D687E7.png title=QQ图片20160224214140.png alt=QQ图片20160224214140.png/>

④ <img src=https://huaweicloudobs.ahjxjy.cn/6101D759594C1C2892D8E9F8195520C5.png title=QQ图片20160224215328.png alt=QQ图片20160224215328.png/>

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【单选题】设<img src=https://huaweicloudobs.ahjxjy.cn/C67CBDA727FEA56C7AB111CAB6F951AD.png title=QQ图片20160224215718.png alt=QQ图片20160224215718.png/>，则（）

① <img src=https://huaweicloudobs.ahjxjy.cn/DF3DA077C2189146990B3800DA1E18ED.png title=QQ图片20160224214023.png alt=QQ图片20160224214023.png/>为极值点

② <img src=https://huaweicloudobs.ahjxjy.cn/DF3DA077C2189146990B3800DA1E18ED.png title=QQ图片20160224214023.png alt=QQ图片20160224214023.png/>为驻点

③ <img src=https://huaweicloudobs.ahjxjy.cn/DF3DA077C2189146990B3800DA1E18ED.png title=QQ图片20160224214023.png alt=QQ图片20160224214023.png/>为连续点

④ <img src=https://huaweicloudobs.ahjxjy.cn/EA6FB79FF8DF7A9F3A2D0CEB093C717F.png title=QQ图片20160224214006.png alt=QQ图片20160224214006.png/>在<img src=https://huaweicloudobs.ahjxjy.cn/DF3DA077C2189146990B3800DA1E18ED.png title=QQ图片20160224214023.png alt=QQ图片20160224214023.png/>有定义

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【单选题】 <img src=https://huaweicloudobs.ahjxjy.cn/105E111DA681E95D88E4E4152F4C46E2.png title=QQ图片20160108165131.png alt=QQ图片20160108165131.png/><img src=https://huaweicloudobs.ahjxjy.cn/552A8C09885689EB452DA3865ADAD75D.png title=QQ图片20160108165150.png alt=QQ图片20160108165150.png/>

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③ <img src=https://huaweicloudobs.ahjxjy.cn/4C5A9407AF48564313C1878511BA6749.png title=QQ图片20160108165227.png alt=QQ图片20160108165227.png/>

④ <img src=https://huaweicloudobs.ahjxjy.cn/F67EF9F84F4FF33BA448182B54A32743.png title=QQ图片20160108165240.png alt=QQ图片20160108165240.png/>

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【单选题】 <img src=https://huaweicloudobs.ahjxjy.cn/BBB8E3C4510E904B05C742126FDC96DA.png title=QQ图片20160108171807.png alt=QQ图片20160108171807.png/>（）。

① <img src=https://huaweicloudobs.ahjxjy.cn/57C04960EA06914228195ADDBAF1AF7D.png title=QQ图片20160108171817.png alt=QQ图片20160108171817.png/>

② <img src=https://huaweicloudobs.ahjxjy.cn/74B85DE57CEEF52EAC7975989F0E4D41.png title=QQ图片20160108171827.png alt=QQ图片20160108171827.png/>

③ <img src=https://huaweicloudobs.ahjxjy.cn/CE7E5FCFC42563113DCE2493F8EB82D0.png title=QQ图片20160108171850.png alt=QQ图片20160108171850.png/>

④ <img src=https://huaweicloudobs.ahjxjy.cn/8B8831F25B6CE68E0CF1DF9EB86B01A0.png title=QQ图片20160108171859.png alt=QQ图片20160108171859.png/>

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【单选题】 <img src=https://huaweicloudobs.ahjxjy.cn/A7680902CB99663BA6E23408C5C4ABFB.png title=QQ图片20160108111419.png alt=QQ图片20160108111419.png/><img src=https://huaweicloudobs.ahjxjy.cn/F7C836FE5C2376120035EBE3D8C699B9.png title=QQ图片20160108111439.png alt=QQ图片20160108111439.png/>

① <img src=https://huaweicloudobs.ahjxjy.cn/51A1F02268CD4EAF0D1BB4C81A2C8981.png title=QQ图片20160108111454.png alt=QQ图片20160108111454.png/>

② <img src=https://huaweicloudobs.ahjxjy.cn/FAF724DB88B6F9338819B0ACF799FC7E.png title=QQ图片20160108111507.png alt=QQ图片20160108111507.png/>

③ <img src=https://huaweicloudobs.ahjxjy.cn/D6D9581D650D608E065C2881AE35D6A8.png title=QQ图片20160108111520.png alt=QQ图片20160108111520.png/>

④ <img src=https://huaweicloudobs.ahjxjy.cn/F1950DBF13A5E2F6DF6D0A2E7B40036B.png title=QQ图片20160108111532.png alt=QQ图片20160108111532.png/>

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【单选题】 <img src=https://huaweicloudobs.ahjxjy.cn/BB6602F8EBCDCBC4325AC6C2D402AC62.png title=QQ图片20160108172103.png alt=QQ图片20160108172103.png/><img src=https://huaweicloudobs.ahjxjy.cn/2185028B122EA820C3F12899EF40B3B5.png title=QQ图片20160108172114.png alt=QQ图片20160108172114.png/>

① <img src=https://huaweicloudobs.ahjxjy.cn/CC23C6DB5BA0BF66BBFFC2864C452A86.png title=QQ图片20160108172123.png alt=QQ图片20160108172123.png/>

② <img src=https://huaweicloudobs.ahjxjy.cn/EED4D03BD0C27BA6DF81137CB7AD483D.png title=QQ图片20160108172134.png alt=QQ图片20160108172134.png/>

③ <img src=https://huaweicloudobs.ahjxjy.cn/161D2BDBBB638F1AEC50FA43244D2A9D.png title=QQ图片20160108172143.png alt=QQ图片20160108172143.png/>

④ <img src=https://huaweicloudobs.ahjxjy.cn/3E2F5DB12481695A27D0760789A13712.png title=QQ图片20160108172158.png alt=QQ图片20160108172158.png/>

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【单选题】设D是圆环<img src=https://huaweicloudobs.ahjxjy.cn/C1E9D12458DFD4A14CD3882562ECD317.png title=QQ图片20160224231208.png alt=QQ图片20160224231208.png/>，且<img src=https://huaweicloudobs.ahjxjy.cn/19CA4355701DCCA8E9BFC90709B1C2E6.png title=QQ图片20160224231228.png alt=QQ图片20160224231228.png/>则<img src=https://huaweicloudobs.ahjxjy.cn/D387AD7A8CB622BCD1F542C7C350B136.png title=QQ图片20160224231244.png alt=QQ图片20160224231244.png/>（）

① <img src=https://huaweicloudobs.ahjxjy.cn/9E7A64637000AEC0789E48D1E96AD66E.png title=QQ图片20160224231302.png alt=QQ图片20160224231302.png/>

② <img src=https://huaweicloudobs.ahjxjy.cn/AFF8BA7BECE58AC3901A521D7A606F30.png title=QQ图片20160224231314.png alt=QQ图片20160224231314.png/>

③ <img src=https://huaweicloudobs.ahjxjy.cn/7E7DDA627E10663C0016B52FA149DC3A.png title=QQ图片20160224231331.png alt=QQ图片20160224231331.png/>

④ <img src=https://huaweicloudobs.ahjxjy.cn/12F7546764221D5997C3F99846C7FF70.png title=QQ图片20160224231344.png alt=QQ图片20160224231344.png/>

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【单选题】 <img src=https://huaweicloudobs.ahjxjy.cn/DF94E7F946A5A4C7F04540944602E0A2.png title=QQ图片20160105202153.png alt=QQ图片20160105202153.png/>

① 1

② -1

③ <img src=https://huaweicloudobs.ahjxjy.cn/A1407A2C121CC0DD9E57D9F3C6CA601E.png title=QQ图片20160105202213.png alt=QQ图片20160105202213.png/>

④ <img src=https://huaweicloudobs.ahjxjy.cn/09C25759942B889E2A4ADAE4A44018A8.png title=QQ图片20160105202228.png alt=QQ图片20160105202228.png/>

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【单选题】设<img src=https://huaweicloudobs.ahjxjy.cn/C2B945A48B09CACAEC9C03FFB92990C9.png title=QQ图片20160224135447.png alt=QQ图片20160224135447.png/>，则<img src=https://huaweicloudobs.ahjxjy.cn/7644EB64AED2EBF2A8A26C3DFD9845D0.png title=QQ图片20160224135614.png alt=QQ图片20160224135614.png/>

① <img src=https://huaweicloudobs.ahjxjy.cn/671DAD88C50990D12AAC921B430EDD50.png title=QQ图片20160224135703.png alt=QQ图片20160224135703.png/>

② <img src=https://huaweicloudobs.ahjxjy.cn/AFA01D88DB73274B34570B27E59FA317.png title=QQ图片20160224135735.png alt=QQ图片20160224135735.png/>

③ <img src=https://huaweicloudobs.ahjxjy.cn/59D7ABE11EC3BFDC4862C827EEECDD92.png title=QQ图片20160224135809.png alt=QQ图片20160224135809.png/>

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【单选题】 <img src=https://huaweicloudobs.ahjxjy.cn/F22E424670D48EA8B00BF875A572F6D9.png title=QQ图片20160108102117.png alt=QQ图片20160108102117.png/><img src=https://huaweicloudobs.ahjxjy.cn/A7B8AB7EFE9A8EC7C2D83F83CE6AD874.png title=QQ图片20160108102145.png alt=QQ图片20160108102145.png/>

① <img src=https://huaweicloudobs.ahjxjy.cn/D1158E7E2A11A9F3FF830DEDCACFCE40.png title=QQ图片20160108102201.png alt=QQ图片20160108102201.png/>

② <img src=https://huaweicloudobs.ahjxjy.cn/5E167DEDAC45510EE9C136A2850BAEEB.png title=QQ图片20160108102216.png alt=QQ图片20160108102216.png/>

③ <img src=https://huaweicloudobs.ahjxjy.cn/EAC49782558574996690E7E54E04DB82.png title=QQ图片20160108102237.png alt=QQ图片20160108102237.png/>

④ <img src=https://huaweicloudobs.ahjxjy.cn/A97A1286364D01DF4D8429E6D441571A.png title=QQ图片20160108102252.png alt=QQ图片20160108102252.png/>

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随机题目

【判断题】 After the young people returned home, they developed a sudden bewildering world-weariness their relatives understood.

① 正确

② 错误

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【判断题】 After the First World War, the United States was no longer isolated in either politics or tradition.

① 正确

② 错误

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【判断题】 In 1916-1917, military service was considered a romantic occupation because the young men of college age at that time knew nothing of modern warfare.

① 正确

② 错误

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【判断题】 The true intellectuals left for Europe forever because they were not satisfied with their native country.

① 正确

② 错误

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【单选题】 No aspect of life in the Twenties has been more commented upon and sensationally romanticized than _________.

① the native Fourth-of-July bombast

② the rejection of Victorian gentility

③ the expatriation of the true intellectuals

④ The so-called Revolt of the Younger Generation

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【单选题】 “The Sad Young Men” actually refers to _________.

① the lost generation

② the angry young men

③ Beat generation

④ the war profiteers

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【单选题】 The young men began to enlist for ________.

① fun in the war

② the war before it was too late

③ the democracy before the war ended

④ the Victorian gentility after the war

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【单选题】 The Sad Young Men included a group of young intellectuals except ________.

① Hemingway and Dos Passos

② Rod W. Horton and Herbert W. Edwards

③ F. Scott Fitzgerald and Eugene O’Neill

④ Ezra Pound, T. S. Eliot and E. E. Cummings

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【单选题】 invective

① beautiful words

② facial expressions

③ convincing speech

④ abusive language

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【单选题】 testimony

① evidence

② witness

③ liberation

④ trial

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