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椭圆的光学性质
Author:
孟宝兴
GeoGebra
New Resources
判斷球體
GeoGebra笔记功能体验课件
画直线等分三角形的面积
找出對稱軸
兩位數除以一位數（二）
Discover Resources
test
橢圓重心軌跡1
Copy of 圓的面積
圓與切線
加减乘除运输出题器
Discover Topics
Standard Deviation
Cube
Centroid or Barycenter
Geometric Transformations
Percentages