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Author:
杨晓晨
GeoGebra
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兩組對邊相等的四邊形
【案例】2013年安徽高考15题
球体的体积推导（优化版）
GeoGebra笔记功能体验课件
錐體建築師
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垂直1
畢氏定理的證明
小四平面圖形學習單
SIN伸縮平移
Copy of 相關係數
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General Quadrilateral
Subtraction
Difference and Slope
Interest Calculation
Planes