【简答题】
<img src="https://huaweicloudobs.ahjxjy.cn/5D2E5A5B9035D3651746C5C8EA34B414.png" title="7.png" alt="7.png"/><img src="https://huaweicloudobs.ahjxjy.cn/D9C7A24647F9605D1DF1809BE28C5B2D.png" title="8.png" alt="8.png"/>[填空1]
【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/F87F4FFFD9E71A5DC1339D0D3512E1FA.png title=2.png alt=2.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/6F10CA295CC8BFF2F80DE89633951398.png title=2-1.png alt=2-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/AC4BA420F0CBC0313D728B342BD04956.png title=2-2.png alt=2-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/8ACB02F1BE9A394475CBFC12E72BEDB9.png title=2-3.png alt=2-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/4BB7ABF2790D9E22A4E5FB0CDF3528F9.png title=2-4.png alt=2-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/34242C37DA3F3D2F6EE9F909BBEDF5ED.png title=2.png alt=2.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/EEFB780D1DB3E9EA4974593034195FBD.png title=2-1.png alt=2-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/84A46D8348CAC2962EA276EAD0295E57.png title=2-2.png alt=2-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/2BBD381DC7A0AF4EEE627190FA603027.png title=2-3.png alt=2-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/CFC8C7B97652511422B4C0A8B23F5FB8.png title=2-4.png alt=2-4.png/>
【多选题】
<img src=https://huaweicloudobs.ahjxjy.cn/4DE29EFA21CB7D8D919C14C049187750.png title=1.png alt=1.png/><img src=https://huaweicloudobs.ahjxjy.cn/E85495858960DABC7D0670895F1502DC.png title=2.png alt=2.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/5329CCB367DC78F31026DD8A280B9DB7.png title=4.png alt=4.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/F0279F9E99540B5C6AD90E91695A90B0.png title=3.png alt=3.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/201DB0FD15C18B3A27CC64EEA281F911.png title=5.png alt=5.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/7EAB1F1D0550A6C5C24EEB0FFE8B0D00.png title=6.png alt=6.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/CCB9A4B6C8BC3BBE192E0B028159DC32.png title=11.png alt=11.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/C6C4992631F5856791C96983D46D14F9.png title=11-1.png alt=11-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/39D7B31521211EE6037D7325833BE904.png title=11-2.png alt=11-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/E127F2DA6CAB00609889F3B49D377D52.png title=11-3.png alt=11-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/A4AFADAEA5FB905EA0130C2678CEA3D2.png title=11-4.png alt=11-4.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】
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/7C0E2B66155168CE159B6EB76AE16A06.png title=11.png alt=11.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/521D4470387014256A0F9D0566B48585.png title=11-1.png alt=11-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/8BEFBA1D75B715B9C4A04C9EC4350940.png title=11-2.png alt=11-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/5E1D900449F06E49F63CA2F13AD3ABE3.png title=11-3.png alt=11-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/FAA514735DA0501F2F603A292B480671.png title=11-4.png alt=11-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/7EDF8F9961D2ECF75E08F1BE5F5BA03D.png title=10.png alt=10.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/979D687F154AD4724FC1F9FD0CC18C71.png title=10-1.png alt=10-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/16EDCC09346F5B7822A018E1C7B0165A.png title=10-2.png alt=10-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/6138E49F82233887645099352316D48F.png title=10-3.png alt=10-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/B84D27807D06C91CD02500C8294C9A9F.png title=10-4.png alt=10-4.png/>