美调查:婚姻比同居长久NewlywedskissaftergettingmarriedatoptheEmpireStateBuildinginNewYorkFebruary14,2006USmarriageslastlongerthanunionswherecoupleslivetogetheroutsidematrimony,theCentersforDiseaseControlreportedonTuesday.美国疾病控制中心本周二发布报告称,美国的婚姻关系比非婚同居关系维持得更为长久。About78percentofmarriageslastedfiveyearsormore,comparedwithlessthan30percentofwhattheCDCcalledcoha...