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關燈遊戲3x3 Lights Out Game
Author:
侯杰材
GeoGebra
New Resources
找出對稱軸
拼砌四邊形
兩位數加法
三位數除以一位數（二）
【案例】2018年全国1卷理科12题
Discover Resources
Clock24hour
優良作品2
立方体截面
正三角形
研究杠杆平衡条件
Discover Topics
Cylinder
Pythagoras or Pythagorean Theorem
Secant Line or Secant
Reflection
Linear Programming or Linear Optimization