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test04
Author:
hungkamchuen
GeoGebra
New Resources
兩位數加法
異分母分數減法
四邊形的特性
画直线等分三角形的面积
三位數除以一位數（一）
Discover Resources
用極座標做時鐘
距離和
幾何萬花筒(難度90%)
asdasd
属于与不属于
Discover Topics
Conic Sections
Difference and Slope
Curve Sketching
Quadrilaterals
Plane Figures or Shapes