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正弦型函数
Author:
lzp80
GeoGebra
New Resources
撒针估算面积实验
正方形雪花图案
盈利與虧蝕
龙形曲线-分形龙
中华人民共和国国旗
Discover Resources
重複排列
國旗(青天白日)
平面直角坐标系
circle
Rotational Symmetry的副本
Discover Topics
Algebra
Line Segment
Integral Calculus
Reflection
Linear Equations