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热带风暴storm
Author:
赵林
GeoGebra
New Resources
斐波那契螺旋弧线(表格法)
撒针估算面积实验
双心四边形
龙形曲线-分形龙
异形操场
Discover Resources
abc731797
優良作品3
zuiduan
正四面體的旋轉對稱
題二
Discover Topics
Reflection
Equilateral Triangles
Trigonometry
Polygons
Parametric Curves