关于pandemics的百科

• pandemics造句怎么写

• Bothflupandemicsandglobalwarmingarelethal.Everyhundredyearstherehavebeenthreeorfourpandemics.Evidencefrompreviouspandemicsfurthersupportstheconclusionthatpregnantwomenareatheightenedrisk.Pregnancyisalreadyawell-documentedriskfactorinseasonalinfluenza...
• 2017-09-0317248