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足球有几块白皮
更新时间: 2021-01-07 05:27:48  

1、一个足球上的白皮有20块。

2、足球是由32块黑白相间的牛皮缝制而成的,黑块是五边形,白块是六边形,每块黑块的五条边和五块白皮的一条边重合.每块白皮的三条边分别与三块黑皮缝在一起.整个足球表面是封闭的,黑皮和白皮紧密相连。

关键词: 足球

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