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![全91集【2025新教材 北师大版数学七年级上册/下册]2025新教材北师大版数学，七年级数学上下册数学视频课本同步精讲(同步练习题)](//imgshow.1ydt.com/img?url=%2F%2Fi0.hdslb.com%2Fbfs%2Farchive%2F659f35a5c2a93b8ef34f0a99a3a67140c3dbccc9.jpg%40672w_378h_1c_%21web-search-common-cover)
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![全827集【四年级下册数学动画]（北师大版+人教版）小学数学动画数学课(1-6年级数学上下册全827集)跟着师徒一起学数学](//imgshow.1ydt.com/img?url=%2F%2Fi0.hdslb.com%2Fbfs%2Farchive%2Fa8448f795428c34a32cdad531a8d478dc17e92a8.png%40672w_378h_1c_%21web-search-common-cover)
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播放：7 时间：2024-06-21简介： -
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播放：18 时间：2024-06-19简介： -
![全196集2025新课提前学【四年级数学上册/下册]人教版四年级数学上下册同步课堂+专项培优精讲课堂(配套讲义习作 PDF)](//imgshow.1ydt.com/img?url=%2F%2Fi2.hdslb.com%2Fbfs%2Farchive%2F912b472356823368a4b7562b3c20f9541587999c.jpg%40672w_378h_1c_%21web-search-common-cover)
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![全91集【2025新教材 北师大版数学七年级上册/下册]2025新教材北师大版数学，七年级数学上下册数学视频课本同步精讲(同步练习题)](//imgshow.1ydt.com/img?url=%2F%2Fi1.hdslb.com%2Fbfs%2Farchive%2Fea8952520b4981dbf62ba5dbfb5dc7492a15c1e8.jpg%40672w_378h_1c_%21web-search-common-cover)
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![全91集【2025新教材 北师大版数学七年级上册/下册]2025新教材北师大版数学，七年级数学上下册数学视频课本同步精讲(同步练习题)](http://imgshow.1ydt.com/img?url=%2F%2Fi0.hdslb.com%2Fbfs%2Farchive%2F659f35a5c2a93b8ef34f0a99a3a67140c3dbccc9.jpg%40672w_378h_1c_%21web-search-common-cover)
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