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一筆畫
Author:
周錦鋒
GeoGebra
GeoGebra
New Resources
拼砌四邊形
球體建築師
球体的体积推导
三位數除以一位數（一）
找出對稱軸
Discover Resources
利用工作表制作二分树
函數(簡易微積分)
空間中的平面
圓心
廣義三角：sin, cos
【初中】动点问题
Discover Topics
Mode
Normal Distribution
Derivative
Perimeter
Subtraction