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七巧板揖人
Author:
李春培
七巧板揖人
GeoGebra
New Resources
兩位數除以一位數（二）
兩組對邊相等和有直角的四邊形
兩位數加法
錐體建築師
【案例】2013年安徽高考15题
Discover Resources
I am superman
拋物線上的弓形區域
拼貼11939
Angles in a Circle:Property 2
正十二面體裁邊 (Chamfered Dodecahedron)
Discover Topics
Frequency Distribution
Coordinates
Perimeter
Piecewise Functions
Similar Triangles