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2016-10-12-02
Author:
pentiumevo
GeoGebra
New Resources
兩組對邊相等的四邊形
三位數除以一位數（二）
第八周作业
算柱 (兩位數)
畫出對稱圖形
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圓錐體內切球
四邊形外接正方形
高中多項式
六芒星
正四面體變菱形12面體
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Sphere
Differential Equation
Orthocenter
Translation
Numbers