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waaachen
Author:
陳兪宏
waaachen
GeoGebra
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画直线等分三角形的面积
判斷球體
拼砌四邊形
異分母分數減法
【案例】2013年安徽高考15题
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柱體高度與體積
Centres
circle
金惠吉:三维李萨如
數字鐘 的複本
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Statistics
Differential Equation
Angles
Geometry
Arithmetic