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折射率的定義
Author:
Jia-ming Shiu
可以移動G、E、F 看出折射率的算法
GeoGebra
New Resources
算柱 (兩位數)
GeoGebra笔记功能体验课件
兩位數加法
異分母分數減法
【案例】2013年安徽高考15题
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學習單：三角形內(外)角合
All in one (centres of triangle)
滾動的圓
生日问题
翰林數學_2下_CH3-1_三角形的內角和
Discover Topics
Statistical Characteristics
Special Points
Integral Calculus
Tangent Function
Linear Equations