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Author:
杨晓晨
GeoGebra
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兩位數除以一位數（二）
兩組對邊相等和有直角的四邊形
【案例】2013年安徽高考15题
球体的体积推导（优化版）
畫出對稱圖形
Discover Resources
面積
分數乘法3
鏡頭控制
摺長方形
平移
Discover Topics
Straight Lines
Parabola
Expected Value
Vectors 2D (Two-Dimensional)
Equilateral Triangles