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8条相切的抛物线
Author:
赵林
Topic:
Parabola
GeoGebra
New Resources
四邊形的特性
判斷球體
球體建築師
算柱 (兩位數)
柱體建築師
Discover Resources
愛上貝氏曲線 (Love for Bezier)
五角星
教學媒體10/02
百度(改良版)
刘校安排（1）
Discover Topics
Random Variables
Solids or 3D Shapes
Planes
Circumcircle or Circumscribed Circle
Calculus