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心電感應
Author:
李春培
GeoGebra
New Resources
異分母分數減法
畫出對稱圖形
找出對稱軸
兩位數除以一位數（二）
判斷球體
Discover Resources
平方數2平方數2
正四面體、正六面體、正八面體
剪刀石頭布
单晨制作网板网板甘肃刘玉平供题
Sunrays with different angles
Discover Topics
Geometric Distribution
Combinatorics
Mode
Equations
Subtraction