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Author:
celia.su
GeoGebra
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画直线等分三角形的面积
GeoGebra笔记功能体验课件
【案例】2013年安徽高考15题
畫出對稱圖形
錐體建築師
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圓內接四邊形 ABCD ...,求 sinθ=?
省政信箱
Addition and Subtraction of Directed Numbers (1) 有向數加減(1)
點的堆墮
工作紙-整數乘以真分數
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Set Theory
Square
Circle
Histogram
Planes