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CS-12-12
Author:
Jiezhe Wang
GeoGebra
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異分母分數減法
第八周作业
兩位數加法
四邊形的特性
兩位數除以一位數（一）
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消失的面積(一)
對稱及變換
Captain America
Clown
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Derivative
Area
Similar Triangles
Correlation
Orthocenter