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Author:
许业成
GeoGebra
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第八周作业3
龙形曲线-分形龙2
异形操场
盈利與虧蝕
椭圆内切圆链
Discover Resources
正八面體
有趣的反例
特製的門 2
Circle123456789987654321
週長面積皆相等的不全等三角形
Discover Topics
Trapezoid
Pythagoras or Pythagorean Theorem
Vectors
Definite Integral
Quadrilaterals