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Author:
吕胜
GeoGebra
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正方形雪花图案
第八周作业2
科赫雪花
折扣
龙形曲线-分形龙2
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斜線圖的畫法
整數÷整數_ 工作紙(一)_題8
Triangle 02
Apollonius Problem 10 CCC wiki step 3
江苏省职校数学网络资源
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Incircle or Inscribed Circle
Polygons
Circle
Rectangle
Prism