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椭圆的离心率
Author:
孟宝兴
GeoGebra
New Resources
球体的体积推导
兩組對邊相等的四邊形
柱體建築師
三位數除以一位數（一）
錐體建築師
Discover Resources
三角函數
Prism and Cylinder 5
中國火柴遊戲一
Test
y=a(x-h)²+k的副本
Discover Topics
Conic Sections
Interest Calculation
Incircle or Inscribed Circle
Calculus
Coordinates