还有就是PPT软件不能根据要对证据照片进行调整和批注等YijA
[2]YuH,etc.ThesubstantialhospitalizationburdenofinfluenzaincentralChina:surveillanceforsevere,acuterespiratoryinfection,andinfluenzaviruses,2010-2012.InfluenzaOtherRespirViruses.2014Jan;8(1):53-65.