- 问题详情:Howmuchpaperdoyouuseeveryyear?Perhapsyoucan’tanswerthatquestionquickly.In1900theworld’suseofpaperwasaboutonekilogramforeachpersoninayear.Nowsomecountriesuseasmuchas100kilogramsofpaperforeachpersoninayear.Theamountofpaperacountryusesshowshow...
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