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圆锥曲线的第二定义的副本
Author:
GuiyuLiu
,
梁航宇
GeoGebra
New Resources
四邉形 (四年級) 教師版
四邊形的特性
錐體建築師
兩位數除以一位數（一）
算柱 (兩位數)
Discover Resources
堆疊(圓、正方形、正三角形)
Quiz on Signs of Coefficients of Quadratic Functions 二次函數係數的正負號：測驗
拋物線2--焦點法
欧拉线
活工(二)Q1
Discover Topics
Line Segment
Tree Diagrams
Linear Equations
Cuboid
Derivative