下列关于伤寒肥达反应的叙述,不正确的是() ["“O”效价≥1:80,“H”效价≥1:160,才有诊断价值","只有“O”抗体效价升高可能是疾病的早期","仅有“H”抗体效价增高可能是接种过伤寒菌苗的回忆反应","区别伤寒或副伤寒需依鞭毛抗体凝集效价而定","“O”抗体和“H”抗体均为阴性可排除伤寒"]
煤矿瓦斯是怎样产生的?
《中国药典》规定,称取"2.0g"是指称取() ["1.5~2.5g","1.95~2.05g","1.4~2.4g","1.995~2.005g","1.94~2.06g"]
每个组织都是由人来组成的,指挥和协调这些人是管理者的工作,这是什么功能() ["计划","领导","控制","组织"]
组成药物中含有生地、当归、丹皮、黄连、升麻的方剂是()。 ["凉膈散","泻白散","龙胆泻肝汤","芍药汤","清胃散"]
岩基