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椭圆的定义
Author:
guomenglin
Topic:
Ellipse
GeoGebra
New Resources
画直线等分三角形的面积
兩組對邊相等和有直角的四邊形
GeoGebra笔记功能体验课件
球體建築師
異分母分數減法
Discover Resources
Square Root 平方根
長方體的切割(二)
线段
水流問題(黑板)
近期新增圖檔
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Multiplication
Logarithm
Vectors 2D (Two-Dimensional)
Plane Figures or Shapes
Coordinates