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Author:
chy198
GeoGebra
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折扣
第八周作业3
常见四边形是否是双心四边形
盈利與虧蝕
科赫雪花
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車輪
ie 9
学用数学 S0
S408 Penrose 階梯
球表面积的一种特殊推导
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Integral Calculus
Prism
Tangent Line or Tangent
Parametric Curves
Solids or 3D Shapes