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生日悖論
Author:
李春培
生日悖論
GeoGebra
New Resources
兩位數除以一位數（一）
兩位數除以一位數（二）
四邊形的特性
兩位數加法
找出對稱軸
Discover Resources
複合棒形圖: 圖二
時鐘問題
Classifying Quadrilaterals
整數除真分數
題10
Discover Topics
Percentages
Piecewise Functions
Terms
Orthocenter
Real Numbers