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椭圆的定义
Author:
guomenglin
Topic:
Ellipse
GeoGebra
New Resources
畫出對稱圖形
【案例】2018年全国1卷理科12题
第八周作业
球体的体积推导（优化版）
錐體建築師
Discover Resources
角速度概念
if指令
Ext angle cyclic quad
Kumamon
函数作图工具的副本
Discover Topics
Square
Mathematics
Polygons
Exponential Functions
Geometry