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正20面体
Author:
2143550746
GeoGebra
New Resources
第八周作业2
中华人民共和国国旗
龙形曲线-分形龙2
斐波那契螺旋弧线(表格法)
第八周作业1
Discover Resources
方格紙上畫平行四邊形1
物件的平移概念
第一本
仿生機械
折纸—直三棱锥
Discover Topics
General Quadrilateral
Constructions
Coordinates
Subtraction
Cone