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![2026寒假预习【北师大数学六年级下册数学同步精讲]】全238集视频+PDF资料包北师大版六年级上册+下册数学专项辅导，紧扣教材考点，梳理比例、圆柱圆锥、正反比](//imgshow.1ydt.com/img?url=%2F%2Fi2.hdslb.com%2Fbfs%2Farchive%2Fb976bd73c0e5ed271c4e58a56c25c1fc1feaf120.jpg%40672w_378h_1c_%21web-search-common-cover)
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![2026寒假预习【北师大数学六年级下册数学同步精讲]】全238集视频+PDF资料包北师大版六年级上册+下册数学专项辅导，紧扣教材考点，梳理比例、圆柱圆锥、正反比](http://imgshow.1ydt.com/img?url=%2F%2Fi2.hdslb.com%2Fbfs%2Farchive%2Fb976bd73c0e5ed271c4e58a56c25c1fc1feaf120.jpg%40672w_378h_1c_%21web-search-common-cover)
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