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符成岗
Author:
符成岗
GeoGebra
New Resources
近似值：有效數字
兩位數除以一位數（一）
兩位數加法
判斷球體
小数 的副本
Discover Resources
x^4 vs. x^2
函數
國旗動畫
廣義角
任務4的副本
Discover Topics
Cylinder
Quadrilaterals
Arithmetic Mean
Geometric Transformations
Functions