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play tennis
Author:
李春培
play tennis
GeoGebra
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畫出對稱圖形
【案例】2013年安徽高考15题
兩位數除以一位數（一）
兩組對邊相等的四邊形
判斷球體
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正弦函数图像
triangle
點到直線距離4：同心圓擴大
Brahmagupta 四邊形的構造方法
打包成jar包后，不能使用3D视图3D view cannot be used after it is packaged into a jar bag
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Statistics
Intersection
Hyperbola
Exponent
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