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二次函數02
Author:
翁瑞檡
GeoGebra
New Resources
球體建築師
柱體建築師
找出對稱軸
画直线等分三角形的面积
球体的体积推导（优化版）
Discover Resources
不規則填色
Conjugate Diameter—共轭直径
(3D) Tasks: Pyramid, Paper folding & Solid of revolution[20170615]
索瑪立方體
波的叠加
Discover Topics
Probability
Cuboid
Reflection
Polygons
Parallelogram