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花园伞Gartenschirm
Author:
刘护灵
GeoGebra
New Resources
斐波那契螺旋弧线（表格法）
折扣
比較五件物件的重量
中华人民共和国国旗
双心四边形
Discover Resources
教學－旋轉
z=sin(sqrt(x^2+y^2))
sequence
Net of cylinder
带电粒子在匀强磁场中的运动
Discover Topics
Line Segment
Isosceles Triangles
Plane Figures or Shapes
Polygons
Vectors 2D (Two-Dimensional)