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關燈遊戲3x3 Lights Out Game
Author:
侯杰材
GeoGebra
New Resources
畫出對稱圖形
【案例】2013年安徽高考15题
画直线等分三角形的面积
異分母分數減法
兩位數除以一位數（一）
Discover Resources
二項分布標準化
test area
test
莫比烏斯帶02
sinx
Discover Topics
Boxplot
Parabola
Pythagoras or Pythagorean Theorem
Surface
Arithmetic