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椭圆的定义
Author:
guomenglin
Topic:
Ellipse
GeoGebra
New Resources
兩位數加法
算柱 (兩位數)
四邊形的特性
兩組對邊相等的四邊形
三位數除以一位數(一)
Discover Resources
Sequence指令練習(一維)
圆锥曲线定义的拓展(卡西尼卵形线)
園內接三角形
加減併式與估算
相遇问题
Discover Topics
Sphere
Combinatorics
Translation
Trapezoid
Mode