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happy new year2
Author:
李春培
happy new year2
GeoGebra
New Resources
兩組對邊相等的四邊形
GeoGebra笔记功能体验课件
兩位數加法
三位數除以一位數(二)
画直线等分三角形的面积
Discover Resources
test
GGB研習繪本
正n邊形的組合
周界-平移法(練習四)
軌跡 拋物線 (與點及線等距)
Discover Topics
Integral Calculus
Probability
Expected Value
Square
Trapezoid