中国大学MOOC:"已知函数http://edu-image.nosdn.127.net/_PhotoUploadUtils_21a10ed6-67fc-4bfc-b31d-58b18726a639.png由方程http://edu-image.nosdn.127.net/_PhotoUploadUtils_d75b75cf-f0c7-4fec-aacf-6b2f25929d58.png所确定，则曲线http://edu-image.nosdn.127.net/_PhotoUploadUtils_21a10ed6-67fc-4bfc-b31d-58b18726a639.png上点http://edu-image.nosdn.127.net/_PhotoUploadUtils_e0e458e0-349f-4a98-9337-9a98a7c71668.png处的法线方程是http://edu-image.nosdn.127.net/_PhotoUploadUtils_4813833f-66bd-4a96-84c4-0eb3fe7d2056.png。";
举一反三
- 中国大学MOOC: 4、函数http://edu-image.nosdn.127.net/_PhotoUploadUtils_329edcbc-8af7-48c7-ab12-90699308a1b5.png在http://edu-image.nosdn.127.net/_PhotoUploadUtils_84fc348a-8d91-435a-adaa-bdf92e730779.png处连续，则http://edu-image.nosdn.127.net/_PhotoUploadUtils_329edcbc-8af7-48c7-ab12-90699308a1b5.png在http://edu-image.nosdn.127.net/_PhotoUploadUtils_84fc348a-8d91-435a-adaa-bdf92e730779.png处可微。
- 设[img src="http://edu-image.nosdn.127.net/_PhotoUploadUtils_067016aa-77f2-4aff-bd36-e3fa5f1bd893.png"],[img src="http://edu-image.nosdn.127.net/_PhotoUploadUtils_358ab06c-7f19-4ae6-ba82-424c72bd4d18.png"],则[img src="http://edu-image.nosdn.127.net/_PhotoUploadUtils_2b561af0-b65d-4e5e-936b-72b15b4f0f56.png"][img src="http://edu-image.nosdn.127.net/_PhotoUploadUtils_92284d1b-6fe3-4dc1-a732-618796cd01a4.png"] A: 6 B: 10 C: 8 D: 4
- 常用的国际域名（）？ A: COM，.ORG B: ORG，.NET C: NET，.EDU D: EDU，.INT
- 中国大学MOOC: 已知方程http://edu-image.nosdn.127.net/_PhotoUploadUtils_abe0425d-b41b-459d-9226-ece79c50b2a5.png，则http://edu-image.nosdn.127.net/_PhotoUploadUtils_6caa52b0-2f78-4818-9ec4-de4a86f69092.png。
- 中国大学MOOC: 设函数z = z(x,y)由方程http://edu-image.nosdn.127.net/_PhotoUploadUtils_96a9a240-1a3f-410b-8090-6e6052443cbd.png所确定,则http://edu-image.nosdn.127.net/_PhotoUploadUtils_1015fedf-4942-42c9-8a3a-c69478e0af91.png