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折扣 例5
Author:
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
異分母分數減法
GeoGebra笔记功能体验课件
兩位數除以一位數（一）
找出對稱軸
拼砌四邊形
Discover Resources
我的第一個GGB動畫
test
折線1
求公切線段長
球體
Discover Topics
Multiplication
Similar Triangles
Intersection
Planes
Diagrams