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初一-数学（人教版）垂线的概念与性质

视频地址：https://video.cache.bdschool.cn/vd/426306bc31749c9f2e21dd270bb1d115.mp4
附件：0422初一数学（人教版）-垂线的概念与性质-1教案.docx
附件：0422初一数学（人教版）-垂线的概念与性质-2PPT.pptx
附件：0422初一数学（人教版）-垂线的概念与性质-3学习任务单.docx

20 views Jul 15, 2021

初一-数学(北京版)二元一次方程和它的解初一-数学（北京版）4.2不等式的基本性质

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