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風車2
Author:
李春培
風車2
GeoGebra
New Resources
兩位數加法
三位數除以一位數（二）
三位數除以一位數（一）
判斷球體
球體建築師
Discover Resources
畫三角形 題2c
Copy of 畫鐘面
內擺線觀察
同心圓
錐體建築師
Discover Topics
Secant Line or Secant
Optimization Problems
Linear Programming or Linear Optimization
Exponent
Rotation