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Author:
孟宝兴
GeoGebra
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兩位數加法
GeoGebra笔记功能体验课件
錐體建築師
兩組對邊相等和有直角的四邊形
兩位數除以一位數（一）
Discover Resources
deductive geometry
模擬3D---切割與展開
一般線性變換
Angle Sum of Triangle
莱诺三角形 Reuleaux Triangle及其特性
双曲线定义
Discover Topics
Rectangle
Indefinite Integral
Quadratic Equations
Vectors
Sphere