- 问题详情:TheU.S.PostalService(USPS)islosingbillionsofdollarsayear.Thegovernmentcompanythatdelivers“smallmail”islosingouttoemailandothertypesofelectroniccommunication.First-classmailamountfellfromahighpointof104millionpiecesin2000tojust64millionpiece...
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