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Author:
汪为青
GeoGebra
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三位數除以一位數（一）
GeoGebra笔记功能体验课件
判斷球體
找出對稱軸
錐體建築師
Discover Resources
Locus 軌跡(2T)
Square pyramid
角平分線
極落戰艦-初階版
圆周展开
Discover Topics
Secant Line or Secant
Derivative
Subtraction
Natural Numbers
Trigonometry