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椭圆的定义
Author:
guomenglin
Topic:
Ellipse
GeoGebra
New Resources
判斷球體
第八周作业
小数 的副本
拼砌四邊形
畫出對稱圖形
Discover Resources
tttttrr
圓柱體斜切塊體積
Cycloid
圆锥曲线的第二定义
海螺
Discover Topics
Frequency Distribution
Secant Line or Secant
Calculus
Similar Triangles
Scalene Triangles