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![北师大数学七下《1.3同底数幂的除法》[张老师]【市一等奖】优质课](//imgshow.1ydt.com/img?url=%2F%2Fi0.hdslb.com%2Fbfs%2Farchive%2F7f1c1dce-18a17cfcdc3.jpeg%40672w_378h_1c_%21web-search-common-cover)
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播放：1 时间：2025-10-09简介： -
播放：0 时间：2025-10-08简介：
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![北师大数学七下《1.3同底数幂的除法》[张老师]【市一等奖】优质课](http://imgshow.1ydt.com/img?url=%2F%2Fi0.hdslb.com%2Fbfs%2Farchive%2F7f1c1dce-18a17cfcdc3.jpeg%40672w_378h_1c_%21web-search-common-cover)
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