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合 24（淺中深）
Author:
Anthony OR 柯志明
GeoGebra
New Resources
四邉形 (四年級) 教師版
錐體建築師
拼砌四邊形
兩組對邊相等和有直角的四邊形
畫出對稱圖形
Discover Resources
分割
教學－直線方程性質
蝴蝶定理證明2：綜合法
平行線的斜率_hui sir
φ的影响
Discover Topics
LCM and GCD
Poisson Distribution
Rectangle
Parametric Curves
Hyperbola