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圓心在同一直線上且相切的圓(半徑可改變)
Author:
lee chao ming
GeoGebra
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三位數除以一位數（一）
異分母分數減法
GeoGebra笔记功能体验课件
找出對稱軸
四邉形 (四年級) 教師版
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比流器3相連接方法--U,Z,Y,Δ
簡單動畫
圓周 (圖形E)
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圓與切線
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Translation
General Quadrilateral
Numbers
Parabola
Scalene Triangles