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初二-数学(人教版)方差的概念

视频地址：https://video.cache.bdschool.cn/vd/8a94a0b287cc26cdd041ec95114b5028.mp4
附件：0630初二数学（人教版）方差的概念-1教案.docx
附件：0630初二数学（人教版）方差的概念-2PPT.pptx
附件：0630初二数学（人教版）方差的概念-3学习任务单.docx

13 views Jul 15, 2021

初二-数学(北京版)一元二次方程解法——根的判别式初二-数学(人教版)一次函数与方程、不等式

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