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Author:
hou yi ting
EASY
GeoGebra
New Resources
異分母分數減法
算柱 (兩位數)
畫出對稱圖形
兩位數除以一位數（二）
柱體建築師
Discover Resources
Circle Properties
競賽題-1
擴分
弧長與圓周角成比例
計算圖形周界（小六下）
Discover Topics
Random Variables
Fractions
Circle
Vectors 3D (Three-Dimensional)
Sphere