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高二数学（人教A版）-离散型随机变量的方差

视频地址：https://video.cache.bdschool.cn/vd/5f6be4da1af3937f74985821f1f6c272.mp4
附件：0619高二数学（选修-人教A版）-离散型随机变量的方差-1教案.doc
附件：0619高二数学（选修-人教A版）-离散型随机变量的方差-2PPT.pptx
附件：0619高二数学（选修-人教A版）-离散型随机变量的方差-3学习任务单.doc

20 views Jul 15, 2021

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