【单选题】【消耗次数：1】
<img src=https://huaweicloudobs.ahjxjy.cn/56BDC0D59A0699903005B3D2E6060B98.png title=QQ图片20160108162428.png alt=QQ图片20160108162428.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/A0C4768A3FDB0AD9531B15E00E86D516.png title=QQ图片20160108162437.png alt=QQ图片20160108162437.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/289E84ADB4513D8039DA1BE85366AEA4.png title=QQ图片20160108162447.png alt=QQ图片20160108162447.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/11D9D5D2C4389C493557CA52FA43869B.png title=QQ图片20160108162456.png alt=QQ图片20160108162456.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/E0E9DA84C0BAFD0E6A50514231D18777.png title=QQ图片20160108162506.png alt=QQ图片20160108162506.png/>
参考答案：
复制
纠错
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/>
【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/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/ADB11703F3BF0BE78DC47426463EAF9B.png title=QQ图片20160108165201.png alt=QQ图片20160108165201.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/CF13F3D7FB0D5D27421972F547B9024D.png title=QQ图片20160108165212.png alt=QQ图片20160108165212.png/>
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/>
【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/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/711964D1CA5D3A0F1C363FEDDE9F9E1D.png title=QQ图片20160108110719.png alt=QQ图片20160108110719.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/CD839C58CCD85FB44DF45818DB7297B8.png title=QQ图片20160108110831.png alt=QQ图片20160108110831.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/C7AB4B181E7BCF9BFDCDA87CAEB15A85.png title=QQ图片20160108110843.png alt=QQ图片20160108110843.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/027FD4F419E4F24843FC35AC624287EC.png title=QQ图片20160108110855.png alt=QQ图片20160108110855.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/32D0EDF27D20E603E4BE73C2A2CB5B4B.png title=QQ图片20160108110908.png alt=QQ图片20160108110908.png/>
【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/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/0D37611E23B33453B27F824BEBF279B3.png title=QQ图片20160107163814.png alt=QQ图片20160107163814.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/4165A5EDBB0BD90C5BF8D62FBA82B732.png title=QQ图片20160107163830.png alt=QQ图片20160107163830.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/9D47DE953F4B2F56ED4B6288D2BBBD22.png title=QQ图片20160107163843.png alt=QQ图片20160107163843.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/A045D4716BFE356631F7E8482F2BD1B8.png title=QQ图片20160107163855.png alt=QQ图片20160107163855.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/FFD535C654897E5FF06335ECC41518D8.png title=QQ图片20160107163906.png alt=QQ图片20160107163906.png/>
【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/>
【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/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/28E012AAED7E6EA58A29A6698EEA43F1.png title=QQ图片20160224135750.png alt=QQ图片20160224135750.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/46371AC9656CCBCDE75D4732FDAF3336.png title=QQ图片20160108174303.png alt=QQ图片20160108174303.png/><img src=https://huaweicloudobs.ahjxjy.cn/D21D396B38AA2D3311B32DFF3B429B81.png title=QQ图片20160108174314.png alt=QQ图片20160108174314.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/078683216D2137B6C6787C47CF752A08.png title=QQ图片20160108174326.png alt=QQ图片20160108174326.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/088A43BE148E0F9BA5CB6DBECC6C83A2.png title=QQ图片20160108174336.png alt=QQ图片20160108174336.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/06E8BAAD1ECEC250DA5ABDFFBAEA1A82.png title=QQ图片20160108174346.png alt=QQ图片20160108174346.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/2BA64BD0346C9F9EED009C9A82FCA0A0.png title=QQ图片20160108174356.png alt=QQ图片20160108174356.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/E6F971FB23292AC5709EA0115127AB58.png title=QQ图片20160108154849.png alt=QQ图片20160108154849.png/><img src=https://huaweicloudobs.ahjxjy.cn/5CB2221C3D5876AD4ABC8F2B98D369AE.png title=QQ图片20160108154908.png alt=QQ图片20160108154908.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/9B3F683BB8BFB18660A35E24AD62557A.png title=QQ图片20160108154934.png alt=QQ图片20160108154934.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/A109FD62F164A97C17B9DFDBF40254CE.png title=QQ图片20160108154954.png alt=QQ图片20160108154954.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/0F3A702C9B959C5BA3AF810621C9AD06.png title=QQ图片20160108155039.png alt=QQ图片20160108155039.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/DEC11963ACB1713AA5E8D649B4C0BE8B.png title=QQ图片20160108155055.png alt=QQ图片20160108155055.png/>
随机题目
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/E7F0491E715315FFA82F744C95732193.png title=10-D.png alt=10-D.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/3ADA99E9BC6FA68164E9CA4CF96F091B.png title=10-1.png alt=10-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/407677CC8C0FE11E1AA3F31F4263CB0B.png title=10-2.png alt=10-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/6B59DC3E8EF54835FD3383B989973202.png title=10-3.png alt=10-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/E5BAAD502CCA3C0DF8BC5E0DD161A630.png title=10-4.png alt=10-4.png/>
【判断题】
<img src=https://huaweicloudobs.ahjxjy.cn/343F9FCBD050408CA48D27FC21EE6A34.png title=59-对.png alt=59-对.png/>
①
正确
②
错误
【判断题】
<img src=https://huaweicloudobs.ahjxjy.cn/FD737FC8B7DDB8575CE78B12B8B3498F.png title=81-对.png alt=81-对.png/>
①
正确
②
错误
【判断题】
<img src=https://huaweicloudobs.ahjxjy.cn/9799DD1CA114740FFC43637987F2B2D5.png title=67-错.png alt=67-错.png/>
①
正确
②
错误
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/8C0B7FDABE690FE270AA09AF3E6C1064.png title=6-C.png alt=6-C.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/3069D4BB531FC69CAA164124A95E05AA.png title=6-1.png alt=6-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/3A5A5543887F42B8EA741B320CD021C3.png title=6-2.png alt=6-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/0EED8D5A0162EEADD79D4EF6440C0534.png title=6-3.png alt=6-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/FA013C6383E84ECEC406B3B33C018C05.png title=6-4.png alt=6-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/190C5B56A6DB3046943E81A2378F1E56.png title=9-D.png alt=9-D.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/00D55548E7C2B157AEC22ECAD2829121.png title=9-1.png alt=9-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/699AC30A7662823F0EAC80DFAD49FE91.png title=9-2.png alt=9-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/8B58D916AA680D88F6A4DE0E015208EF.png title=9-3.png alt=9-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/E4EF734C9EDF91031257E8780307CADD.png title=9-4.png alt=9-4.png/>
【判断题】
<img src=https://huaweicloudobs.ahjxjy.cn/FEA7399FE26AE4A5DA1872208CBF2A18.png title=51-对.png alt=51-对.png/>
①
正确
②
错误
【判断题】
<img src=https://huaweicloudobs.ahjxjy.cn/B53C43793D7CF41A00BE6A0154C36AE7.png title=32-对.png alt=32-对.png/>
①
正确
②
错误
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/970FF059173CFC8B1F7708ECA7CC7857.png title=2-C.png alt=2-C.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/4AEB7983201BF4B2090B374B5B3D3C99.png title=2-1.png alt=2-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/E057D80EFB298F5C0FAC87D724F299DC.png title=2-2.png alt=2-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/F1AA16F0177951681494CB0EF220A0AE.png title=2-3.png alt=2-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/EAD1A4ADF228C981472C16B6A7894027.png title=2-4.png alt=2-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/D15E15E6C4E28F30B8C66C712E13C1E1.png title=2-B.png alt=2-B.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/71F96B01EC42624D2F43333C279904D8.png title=2-1.png alt=2-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/434DC9367A7013D83A4C86FA0710357B.png title=2-2.png alt=2-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/CCB45D994475E244267423BA4E6B4A5E.png title=2-3.png alt=2-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/0127ABAECB8C07F3EAB3DF13073029B9.png title=2-4.png alt=2-4.png/>