• 2021-04-14 问题

    计算积分,其中D 是由所围成的闭区域。/ananas/latex/p/1196177/ananas/latex/p/39419

    计算积分,其中D 是由所围成的闭区域。/ananas/latex/p/1196177/ananas/latex/p/39419

  • 2022-05-27 问题

    在维普中文期刊服务平台上,按任意字段,搜索检索词“红楼梦”,期刊范围为全部期刊,能得到多少篇文章呢? A: 39429 B: 39439 C: 39419 D: 39449

    在维普中文期刊服务平台上,按任意字段,搜索检索词“红楼梦”,期刊范围为全部期刊,能得到多少篇文章呢? A: 39429 B: 39439 C: 39419 D: 39449

  • 2021-04-14 问题

    A:平面,B:球面,C:旋转椭球面,D:椭球面,E:圆柱面,F:抛物柱面,G:椭圆柱面,H:旋转抛物面,I:圆锥面,J:椭圆锥面,K:马鞍面。则: (1)是____; (2)是______; (3)是______; (4)是______; (5)是______; (6)是______; (7)是______; (8)是______; (9)是______; (10)是______; (11)是______; (12)是______; (13)是______;/ananas/latex/p/1045101/ananas/latex/p/28097/ananas/latex/p/958152/ananas/latex/p/39419/ananas/latex/p/973515/ananas/latex/p/47030/ananas/latex/p/645788/ananas/latex/p/36944/ananas/latex/p/34552/ananas/latex/p/422334/ananas/latex/p/1045357/ananas/latex/p/36098/ananas/latex/p/596597

    A:平面,B:球面,C:旋转椭球面,D:椭球面,E:圆柱面,F:抛物柱面,G:椭圆柱面,H:旋转抛物面,I:圆锥面,J:椭圆锥面,K:马鞍面。则: (1)是____; (2)是______; (3)是______; (4)是______; (5)是______; (6)是______; (7)是______; (8)是______; (9)是______; (10)是______; (11)是______; (12)是______; (13)是______;/ananas/latex/p/1045101/ananas/latex/p/28097/ananas/latex/p/958152/ananas/latex/p/39419/ananas/latex/p/973515/ananas/latex/p/47030/ananas/latex/p/645788/ananas/latex/p/36944/ananas/latex/p/34552/ananas/latex/p/422334/ananas/latex/p/1045357/ananas/latex/p/36098/ananas/latex/p/596597

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