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播放：16 时间：2024-06-19简介： -
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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%2F9776f7ba807a36d5c0eeb09adbb3e9ab1d242846.jpg%40672w_378h_1c_%21web-search-common-cover)
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![[全294集]2025暑假必看【北师大版四年级数学上册/下册数学]四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%2Fi0.hdslb.com%2Fbfs%2Farchive%2F5479205812b404b45dcd828c07867aa285c89ece.jpg%40672w_378h_1c_%21web-search-common-cover)
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![全230集25版【六年级数学上册/下册]人教版小学数 学同步课堂+专项培优精讲课堂(配套讲义习作 PDF)人教版六年级上册数学考点全梳理，跟着 学轻松逆袭!](//imgshow.1ydt.com/img?url=%2F%2Fi1.hdslb.com%2Fbfs%2Farchive%2Ff872ddd71b3337c474276732a85d7f33ae3ba7e9.jpg%40672w_378h_1c_%21web-search-common-cover)
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播放：2 时间：2025-08-19简介： -
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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%2F9776f7ba807a36d5c0eeb09adbb3e9ab1d242846.jpg%40672w_378h_1c_%21web-search-common-cover)
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