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象限
Author:
李春培
GeoGebra
New Resources
球体的体积推导（优化版）
GeoGebra笔记功能体验课件
兩組對邊相等的四邊形
畫出對稱圖形
四邊形的特性
Discover Resources
相似三角形
Copy of 七巧板
六年級_截面_柱體_多邊形
If指令的應用1-1
三角形三边关系探究
Discover Topics
Special Points
Bar Chart or Bar Graph
Exponent
Solids or 3D Shapes
Rectangle