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教授秒針
Author:
marcolee201314
GeoGebra
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异形操场
龙形曲线-分形龙
科赫雪花
斐波那契螺旋弧线(表格法)
第八周作业
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圓與切線
阿波羅圓
正八面體
我的傑作6C04
不可能系列-滾球
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Congruence
Division
Statistical Characteristics
Right Triangles
Planes