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test file
Author:
rchch2014
1
GeoGebra
New Resources
拼砌四邊形
三位數除以一位數（一）
兩位數加法
【案例】圆柱体内放置一个大球六个小球
畫出對稱圖形
Discover Resources
Angle between Lateral Faces 3
阿波羅圓
軌跡練習1
分數化百分數(以方程計算，增潤項目)
金惠吉：三维李萨如
Discover Topics
Similar Triangles
Standard Deviation
Orthocenter
Subtraction
Sphere