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龜甲
Author:
呂麗珠
GeoGebra
New Resources
兩位數加法
球體建築師
畫出對稱圖形
【案例】圆柱体内放置一个大球六个小球
三位數除以一位數（一）
Discover Resources
Conics
巧算周界
重难题组周练（1）——二次函数
基础知识
S3 Ex4.3 Q04(3D圖)
Discover Topics
Numbers
Piecewise Functions
Geometric Mean
Complex Numbers
Quadrilaterals