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六年级-数学（北京版）-比的意义（三）

视频地址：https://video.cache.bdschool.cn/vd/6d43ff6a523e876a5020f9644866da7a.mp4
附件：0514六年级数学（北京版）-比的意义（三）-1 教案.pdf
附件：0514六年级数学（北京版）-比的意义（三）-2课件.pdf
附件：0514六年级数学（北京版）-比的意义（三）-3学习任务单.doc

15 views Jul 15, 2021

六年级-数学（人教版）-圆柱的体积（一）六年级-数学（人教版）-用比例解决问题

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