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四年级-数学（人教版）-三角形的分类第二课时

视频地址：https://video.cache.bdschool.cn/vd/03b92f6543a14b825a71c794a2a7d120.mp4
附件：0608四年级数学（人教版）-三角形的分类第二课时-1教案.docx
附件：0608四年级数学（人教版）-三角形的分类第二课时-2PPT课件.pdf
附件：0608四年级数学（人教版）-三角形的分类第二课时-3学习任务单.docx

15 views Jul 15, 2021

四年级-数学（北京版）-植树问题第二课时四年级-数学（北京版）-设计和装饰《数学小报》（二）

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