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Author:johnmayhk

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直角坐標平面上的旋轉變換
畫出對稱圖形
判斷球體
GeoGebra笔记功能体验课件
找出對稱軸

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sample mean T test
五年級
青字歌
拋物線2-焦點法
金惠吉：光的反射与折射

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Random Experiments
Translation
Logarithmic Functions
Trigonometric Functions
Diagrams

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