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1982全国文9
Author:
常振虎
GeoGebra
New Resources
畫出對稱圖形
兩組對邊相等和有直角的四邊形
算柱 (兩位數)
異分母分數減法
GeoGebra笔记功能体验课件
Discover Resources
三角形的外接圓
小數在數線上的位置2
向量分解：解聯立
相似形的應用
Copy of 三角形的面積
Discover Topics
Confidence Interval
Solids or 3D Shapes
Orthocenter
Set Theory
Diagrams