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Ebbinghaus illusion

Author:acchu

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畫出對稱圖形
兩組對邊相等的四邊形
【案例】圆柱体内放置一个大球六个小球
兩組對邊相等和有直角的四邊形
四邉形 (四年級) 教師版

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例題11
三角形的分割與組合(1)
呵呵
IMO2014C
|sin(z)|

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Mode
Hypergeometric Distribution
Vectors 2D (Two-Dimensional)
Triangles
Volume

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