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Author:
李春培
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GeoGebra
New Resources
錐體建築師
兩位數除以一位數（二）
四邊形的特性
画直线等分三角形的面积
判斷球體
Discover Resources
beauty from WuLing.TW
拿破侖定理(外拿破侖)證明一
Triangles with the same height
corresponding angles
平行四邊形的面積的副本
Discover Topics
Scatter Plot
Definite Integral
Dilation
Division
Confidence Interval