Chrome，
QQ瀏覽器
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![[0309]四年級數(shù)學(xué)(人教版)《運算定律整理與復(fù)習(xí)（一）》-王海萍[吉安縣實驗小學(xué)] | 贛教云](http://imgshow.1ydt.com/img?url=%2F%2Fi0.hdslb.com%2Fbfs%2Farchive%2F89572cdf96e2d1d0c892cdf9cdd1c320f63f99d9.jpg%40672w_378h_1c_%21web-search-common-cover)
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![[0311]四年級數(shù)學(xué)(人教版)《運算定律整理與復(fù)習(xí)（二）》-王海萍[吉安縣實驗小學(xué)] | 贛教云](http://imgshow.1ydt.com/img?url=%2F%2Fi1.hdslb.com%2Fbfs%2Farchive%2F51012b1eece5b0d971b913cb66804f7abd9b6d55.jpg%40672w_378h_1c_%21web-search-common-cover)
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播放：3 時間：2025-02-21簡介： -
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![人教小學(xué)數(shù)學(xué)四下《8.1平均數(shù)》[趙老師]『市一等獎』優(yōu)質(zhì)課](http://imgshow.1ydt.com/img?url=%2F%2Fi2.hdslb.com%2Fbfs%2Farchive%2Fe335403922dd75a6f2da033c7d30d131b00bf489.jpg%40672w_378h_1c_%21web-search-common-cover)
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![人教小學(xué)數(shù)學(xué)四下《9 數(shù)學(xué)廣角—雞兔同籠》[王老師]『市一等獎』優(yōu)質(zhì)課](http://imgshow.1ydt.com/img?url=%2F%2Fi2.hdslb.com%2Fbfs%2Farchive%2F122e68fe119ae408475f5b715c3992012758c4cf.jpg%40672w_378h_1c_%21web-search-common-cover)
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![[0226]四年級數(shù)學(xué)(人教版)《加法運算定律》-李美芳[吉安縣實驗小學(xué)] | 贛教云](http://imgshow.1ydt.com/img?url=%2F%2Fi1.hdslb.com%2Fbfs%2Farchive%2Fd6323ac4ed253cdad0ced8b900e1b3a5cf885fee.jpg%40672w_378h_1c_%21web-search-common-cover)
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播放：8 時間：2025-04-06簡介： -
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