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手表每隔一秒就滴答一下。一场正规的篮球赛时间要精确到十分之一秒,而跑步接力赛要准确到百分之一秒。计算机过去工作在千分之一秒的量级,
The watch ticks every second. A regular basketball game should be accurate to the tenth of a second, while running the relay to be accurate to one hundredth of a second. Computers used to work on the order of thousandths of a second,