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 UID15248 帖子19457 积分58820 学分190082 个 金币1000 个 性别男 在线时间20296 小时 
       
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                  A physics Examination 
 
 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 lighting first, then hear the thunderrolls?
 
 
 
 Nick's answer: Because our eyes are before ears.
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