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測試1
Author:
shihfeng
test
GeoGebra
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画直线等分三角形的面积
直角坐標平面上的旋轉變換
算柱 (兩位數)
三位數除以一位數（一）
【案例】2013年安徽高考15题
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證明三角形內角和180度
Locus (Two points 2)
Ellipse_Horizontal
基础知识
S0E02 勾股定理
Discover Topics
Sequences and Series
Arithmetic Mean
Correlation
Fractal Geometry
Conditional Probability