Chrome，
QQ浏览器
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播放：26 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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播放：8 时间：2024-06-19简介： -
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![全199集【三年级数学上册/下册趣味动画]告别枯燥刷题，让数学知识“动”起来～ 专为三年级孩子设计，把抽象公式、复杂应用题变成生动剧情，孩子看得懂、记得牢](//imgshow.1ydt.com/img?url=%2F%2Fi0.hdslb.com%2Fbfs%2Farchive%2F132971c603bc7e5ec4b9df49817dbe5ed02cde57.jpg%40672w_378h_1c_%21web-search-common-cover)
播放：1 时间：2025-08-20简介： -
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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)
![全199集【三年级数学上册/下册趣味动画]告别枯燥刷题，让数学知识“动”起来～ 专为三年级孩子设计，把抽象公式、复杂应用题变成生动剧情，孩子看得懂、记得牢](http://imgshow.1ydt.com/img?url=%2F%2Fi0.hdslb.com%2Fbfs%2Farchive%2F132971c603bc7e5ec4b9df49817dbe5ed02cde57.jpg%40672w_378h_1c_%21web-search-common-cover)
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