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一根绳子对折3次有几段

更新时间: 2020-07-05 00:00:00     

计算方法如下:

1、一根绳子对折第一次,展开为两段;

2、对折第二次,即已有的两段对折,展开后为四段;

3、对折第三次,即已有的四段一起对折后,为四个两段,即八段。

关键词: 绳子

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