Chrome，
QQ浏览器
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播放：1 时间：2025-10-02简介： -
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![全176集2025版新课提前学【北师大版五年级数学上册]北师大版五年级数学同步课堂+专项培优 暑假预习/复习精讲课堂(配套讲义习作 PDF)](//imgshow.1ydt.com/img?url=%2F%2Fi0.hdslb.com%2Fbfs%2Farchive%2Fbc03fba231d9516e9382d993e0b8521fed7bb5b4.jpg%40672w_378h_1c_%21web-search-common-cover)
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，知识点紧扣教材，步骤清晰易理解，助力孩子夯实数学基础，提升解题能力～](//imgshow.1ydt.com/img?url=%2F%2Fi2.hdslb.com%2Fbfs%2Farchive%2F781b20236527785b7d3aa4e30ccc135dd69c7e20.jpg%40672w_378h_1c_%21web-search-common-cover)
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播放：3 时间：2025-09-22简介： -
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![全176集2025版新课提前学【北师大版五年级数学上册]北师大版五年级数学同步课堂+专项培优 暑假预习/复习精讲课堂(配套讲义习作 PDF)](http://imgshow.1ydt.com/img?url=%2F%2Fi0.hdslb.com%2Fbfs%2Farchive%2Fbc03fba231d9516e9382d993e0b8521fed7bb5b4.jpg%40672w_378h_1c_%21web-search-common-cover)
，知识点紧扣教材，步骤清晰易理解，助力孩子夯实数学基础，提升解题能力～](http://imgshow.1ydt.com/img?url=%2F%2Fi2.hdslb.com%2Fbfs%2Farchive%2F781b20236527785b7d3aa4e30ccc135dd69c7e20.jpg%40672w_378h_1c_%21web-search-common-cover)
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