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五年级-数学（北京版）-长方体和正方体的认识（一）

视频地址：https://video.cache.bdschool.cn/vd/8f2715c7a91072372398ddb4c896efb6.mp4
附件：0420五年级数学（北京版）-长方体和正方体的认识1-1教案.docx
附件：0420五年级数学（北京版）-长方体和正方体的认识1-2PPT课件.pdf
附件：0420五年级数学（北京版）-长方体和正方体的认识1-3学习任务单.docx

20 views Jul 15, 2021

五年级-数学（人教版）观察物体（三）第一课五年级-数学（人教版）-分数的基本性质（二）

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