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一天二十四小时是多久
更新时间: 2020-11-04 00:00:00  

一天二十四小时是1440分钟,86400秒,因为小时、分钟、秒之间的换算进率均为60。运用乘法,列式可得:24小时=24*60=1440分钟。又因为1分钟=60秒,运用乘法,列式可得:24小时=24*60*60=86400秒,所以二十四小时有1440分钟,86400秒。

关键词: 四小 多久

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