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refraction law
Author:
goldengrape
调整参数： 入射角 n1折射率 n2折射率
GeoGebra
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兩位數加法
異分母分數減法
GeoGebra笔记功能体验课件
柱體建築師
錐體建築師
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正n邊形內角與外角
三角函數
點座標旋轉公式
三角函數的繪圖2
Rotational Symmetry的副本
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Cylinder
Scatter Plot
Logarithmic Functions
Line Segment
Translation