nosebleed的精选

Doyouhavenosebleed?Ihadaheavynosebleed.WheneverIhaveacoldIgetanosebleed.Iheardyouflownosebleed,orcold,verynervous,why?Thecommonreasonofnosebleedwashypertention,aceontfor55.6%.Bloodsystem:nodizziness,n...