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Author:
johnmayhk
GeoGebra
New Resources
兩位數除以一位數（二）
兩位數加法
三位數除以一位數（二）
GeoGebra笔记功能体验课件
兩組對邊相等和有直角的四邊形
Discover Resources
隨機漫步
分割
拋物線教學_2016
杯麵
∠APB ≥ 30°
Discover Topics
Division
Stochastic Process or Random Process
Linear Programming or Linear Optimization
Subtraction
Probability