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cg_w
作者：
Juan OrCa
GeoGebra
最新資源
apec
רישום חופשי
z`]]
Translation and scaling
seo tool
探索資源
Recognise familiar 3D Objects using features
Construction: Draw a perpendicular line through a point on the line
Ellipse Polar Connection
Circles
Short Activities and Puzzles
探索主題
黎曼和（Riemann Sum）
二項分布
Sequences and Series
統計特徵
等腰三角形