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![全176集]2025预习必看【北师大版五年级数学上册/下册数学]北京师范大学出版社北师大版五年级上册数学课本同步+专项培优精讲课堂视频配套讲义习题PDF](//imgshow.1ydt.com/img?url=%2F%2Fi1.hdslb.com%2Fbfs%2Farchive%2F4947155801ec707593d0fa8c1befff3a9ba49c65.jpg%40672w_378h_1c_%21web-search-common-cover)
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播放：15 时间：2024-06-19简介： -
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播放：4 时间：2024-09-21简介： -
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![全176集]2025预习必看【北师大版五年级数学上册/下册数学]北京师范大学出版社北师大版五年级上册数学课本同步+专项培优精讲课堂视频配套讲义习题PDF](http://imgshow.1ydt.com/img?url=%2F%2Fi1.hdslb.com%2Fbfs%2Farchive%2F4947155801ec707593d0fa8c1befff3a9ba49c65.jpg%40672w_378h_1c_%21web-search-common-cover)
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