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百葉窗2
Author:
李春培
GeoGebra
New Resources
錐體建築師
兩位數除以一位數（一）
GeoGebra笔记功能体验课件
兩位數除以一位數（二）
【案例】圆柱体内放置一个大球六个小球
Discover Resources
Billiard Ball
拋物線
量度長度(厘米)
F1Ch8 Translation basic
盈利與虧蝕
Discover Topics
Similar Triangles
Equations
Root
Median Line
Diagrams