A physics examination

A Physics Examination 一次物理考试

Once in a physics examination，Nick finished the first question very soon， while his classmates were thinking it hard.

The question was：When it thunders，why do we see the lightning first，then hear the thunder rolls？

Nick's answer：Because our eyes are before ears.


在一次物理考试时，当同学们都还在苦思冥想时，尼克很快就答好了第一个问题。

这个问题是：为什么在打雷时，我们总是先看到闪电后听到雷声？

尼克的回答是：因为眼睛在前，耳朵在后。