- 问题详情: Doctorssayyouhadbetteruseitbeforeyouloseit.Themoreyousiteachday,themorechanceyouhaveofgettingsick.RichardRosenkranzofKansasStateUniversitywasamongtheresearchers.Hesaidpeoplewhosatforlongperiodswereatgreatriskofdiseaseswhencomparedwithth...
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