Chrome，
QQ浏览器
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播放：0 时间：2025-10-10简介： -
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![人教数学八上15.1.1章前引言及从分数到分式[陈老师]【市一等奖】优质课](//imgshow.1ydt.com/img?url=%2F%2Fi2.hdslb.com%2Fbfs%2Farchive%2Fc3bbe40bc3458f9abc0a77abb43c24eb12251387.jpg%40672w_378h_1c_%21web-search-common-cover)
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播放：2 时间：2025-11-20简介： -
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![人教数学八上15.1.1章前引言及从分数到分式[陈老师]【市一等奖】优质课](http://imgshow.1ydt.com/img?url=%2F%2Fi2.hdslb.com%2Fbfs%2Farchive%2Fc3bbe40bc3458f9abc0a77abb43c24eb12251387.jpg%40672w_378h_1c_%21web-search-common-cover)
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