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數量與整體的相差百分率的副本
Author:
冯圣军
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
球体的体积推导（优化版）
四邊形的特性
兩組對邊相等的四邊形
算柱 (兩位數)
三位數除以一位數（一）
Discover Resources
斜射光三角量測
兩位小數GAME
探究平行四邊形的特性
Copy of 小數的認識
Copy of 分數認識
Discover Topics
Median Line
Straight Lines
Orthocenter
Algebra
Fractions