Chrome，
QQ浏览器
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![[P8]8-数学广角--优化（完）](//imgshow.1ydt.com/img?url=%2F%2Fi0.hdslb.com%2Fbfs%2Farchive%2F19e4a0de3ecfef31736e20c6534905cfa12dc39d.jpg%40672w_378h_1c_%21web-search-common-cover)
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播放：5 时间：2025-12-11简介： -
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播放：1 时间：2025-12-06简介： -
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![[415集]小学1-6年级上下学期数学同步动画高清完整无水印版[人教版,北师版，冀教版，苏教版，青岛版]](//imgshow.1ydt.com/img?url=%2F%2Fi2.hdslb.com%2Fbfs%2Farchive%2F2b6232730aeb010b86f2a25ace4299c0eecc959c.png%40672w_378h_1c_%21web-search-common-cover)
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播放：3 时间：2025-12-09简介： -
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![[415集]小学1-6年级上下学期数学同步动画高清完整无水印版[人教版,北师版，冀教版，苏教版，青岛版]](http://imgshow.1ydt.com/img?url=%2F%2Fi2.hdslb.com%2Fbfs%2Farchive%2F2b6232730aeb010b86f2a25ace4299c0eecc959c.png%40672w_378h_1c_%21web-search-common-cover)
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