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拼貼11939
Author:
11939葉宗弘
拼貼
GeoGebra
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兩位數加法
四邉形 (四年級) 教師版
三位數除以一位數（二）
球体的体积推导（优化版）
球体的体积推导
Discover Resources
Apollonius Problem 7 CCP Inversion simple
平行線的截線性質
找规律（数阵与点阵）
三角柱
翰林數學_2下_CH3-4_大角對大邊
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Median Line
Expected Value
Random Variables
Addition
Terms