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2048小游戏
Author:
孟宝兴
GeoGebra
New Resources
柱體建築師
兩位數除以一位數（一）
異分母分數減法
找出對稱軸
畫出對稱圖形
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橢圓
ex 7
Parameter
線對稱圖形
力的合成
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Right Triangles
Real Numbers
Kite
Trigonometry
Median Line