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1977天津4
Author:
常振虎
GeoGebra
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直角坐標平面上的旋轉變換
【案例】2013年安徽高考15题
算柱 (兩位數)
兩位數除以一位數（二）
畫出對稱圖形
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河內塔 (Tower of Hanoi)
推移（y 方向）
長方形和正方形的面積_題F
DSE Circle-ACT02A Relationship Between Angles and Centre and Circumference
平行四邊形的面積的副本
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Similar Triangles
Geometric Distribution
Median Line
Boxplot
Random Variables