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![人教生物七下《1.1人类的起源和发展》[孙老师]『市一等奖』优质课](//imgshow.1ydt.com/img?url=%2F%2Fi2.hdslb.com%2Fbfs%2Farchive%2F3c8b043647cf09023de48abc5cbcdf579b88faf1.jpg%40672w_378h_1c_%21web-search-common-cover)
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播放：2 时间：2024-06-27简介： -
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![人教生物七下《1.1人类的起源和发展》[孙老师]『市一等奖』优质课](http://imgshow.1ydt.com/img?url=%2F%2Fi2.hdslb.com%2Fbfs%2Farchive%2F3c8b043647cf09023de48abc5cbcdf579b88faf1.jpg%40672w_378h_1c_%21web-search-common-cover)
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