治疗流行性脑膜炎的最佳联合用药是()
A.青霉素+氧氟沙星
B.青霉素+磺胺嘧啶
C.青霉素+四环素
D.青霉素+链霉素
E.头孢菌素+林可霉素
参考答案:B
— Can you read the sign, sir? No smoking allowed in the lift!
— _____. [ ]
A. Never mind
B. Don't mention it
C. Sure, I don't smoke
D. Pardon me
原始粒细胞()
A.CD33
B.CD3
C.CD19
D.CD41
E.CD4