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Author:
sealion1215
GeoGebra
New Resources
撒针估算面积实验
龙形曲线-分形龙
斐波那契螺旋弧线（表格法）
第八周作业
第八周作业1
Discover Resources
soccer(final)
簡單動畫
周界-平移法(練習三)
angles in the same segment
集合的运算
Discover Topics
Dilation
Random Variables
Vectors 2D (Two-Dimensional)
Numbers
Translation