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播放：10 时间：2024-06-19简介： -
播放：11 时间：2024-06-19简介： -
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![[基础]高中数学必修第二册 8.3简单几何体的表面积和体积](//imgshow.1ydt.com/img?url=%2F%2Fi0.hdslb.com%2Fbfs%2Farchive%2Fe1d539e10817b62e2c3c6c322f4dcfba0363eeb9.jpg%40672w_378h_1c_%21web-search-common-cover)
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![[基础]高中数学必修第二册 8.2立体图形的直观图](http://imgshow.1ydt.com/img?url=%2F%2Fi1.hdslb.com%2Fbfs%2Farchive%2Fc5cfeb35192983a067253d00c0f1201ab57ee1ed.jpg%40672w_378h_1c_%21web-search-common-cover)
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