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频率与概率——投掷硬币的试验
Author:
Zhang Guangmin
Topic:
Probability
GeoGebra
New Resources
兩位數除以一位數（一）
柱體建築師
算柱 (兩位數)
畫出對稱圖形
四邉形 (四年級) 教師版
Discover Resources
拋物線定義
巧算周界
拋物線1--焦點法
基础知识
和两个圆都相切的圆
Discover Topics
Equilateral Triangles
Arithmetic
Hypergeometric Distribution
Cube
Tangent Function