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橢圓動畫
Author:
chen mingchuan
GeoGebra
New Resources
【案例】2018年全国1卷理科12题
畫出對稱圖形
GeoGebra笔记功能体验课件
拼砌四邊形
三位數除以一位數（二）
Discover Resources
垂足三角形
棋盤的 L 形覆蓋
角平分線製作
小六容量與體積_裝箱問題
镂空正方体案例对比
Discover Topics
Triangles
Secant Line or Secant
Trigonometric Functions
Derivative
Matrices