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國旗 做很久的
Author:
葉千岱
GeoGebra
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兩組對邊相等和有直角的四邊形
兩組對邊相等的四邊形
三位數除以一位數（一）
錐體建築師
找出對稱軸
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挑战中考压轴题1.1.3
T5 Geobra
testing
平行4
畢式定理 (12)的副本
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Arithmetic
Numbers
Interest Calculation
Functions
Linear Equations