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秒针从4走到9经过几秒
更新时间: 2020-10-28 00:00:00  

秒针从4走到9要经过25秒。9-4=5,每个数字之间走5秒走了5个数字,时钟秒针每个数字间隔是5秒,5×5=25,所以从4到9秒针共走了25秒。

钟表是一种计时的装置,也是计量和指示时间的精密仪器。钟表通常是以内机的大小来区别的。

关键词: 秒针 经过

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