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1.可以用專門的計量儀器來精確稱一張紙的重量. 2.可以那一疊紙稱重,用他的總重量再除以紙的張數就可以知道一張紙到底有多重.(這種方法很實用,但比起專業的儀器比得出的數據,就沒有那麼精確) 你可以試試哦~
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