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三角形的心
Author:
数豆豆
GeoGebra
New Resources
折扣
异形操场
斐波那契螺旋弧线（表格法-可动态调节）
撒针估算面积实验
第八周作业1
Discover Resources
原子筆的長度
parallelogram
三次函數01
切割正十二面體(平)
函数情调
Discover Topics
Rectangle
Sphere
Binomial Distribution
Conic Sections
Functions