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Author:
puikam2012
GeoGebra
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双心四边形
第八周作业3
撒针估算面积实验
中华人民共和国国旗
斐波那契螺旋弧线(表格法-可动态调节)
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色彩視覺藝術:三色彩帶
對稱
橢圓的定義畫圖
Quiz on Scientific Notation 科學記數法:測驗
少了一個質數One less prime number
Discover Topics
Square
Angles
Cylinder
Cosine
Prism