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ie 8
Author:
LAM YU SANG
GeoGebra
New Resources
判斷球體
異分母分數減法
錐體建築師
球体的体积推导
兩位數除以一位數（一）
Discover Resources
以電子學習照顧數學科學習差異
座標
Version 3
平行四边形面积演示
九點圓
Discover Topics
Linear Equations
Definite Integral
Rational Numbers
Rectangle
Optimization Problems