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六年级-数学（人教版）-比例的意义和基本性质（一）

视频地址：https://video.cache.bdschool.cn/vd/723920e3e9bf4ff4dfb07f3fd3613b98.mp4
附件：0520六年级数学（人教版）-比例的意义和基本性质（一）-1教案.docx
附件：0520六年级数学（人教版）-比例的意义和基本性质（一）-2PPT课件.pdf
附件：0520六年级数学（人教版）-比例的意义和基本性质（一）-3学习任务单.docx

16 views Jul 15, 2021

六年级-数学（北京版）-比的意义（二）六年级-数学（人教版）-圆柱、圆锥整理与复习

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