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根據百分率找數量（二）: 例2
Author:
GeoGebra Institute of Hong Kong
Topic:
Percentages
GeoGebra
New Resources
異分母分數減法
錐體建築師
画直线等分三角形的面积
兩位數除以一位數（一）
【案例】2013年安徽高考15题
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平移旋轉對稱
生日悖論
過圓內C點的弦中點軌跡
複合圖形(八)
旋轉正方形
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Reflection
Algebra
Constructions
Addition
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