下列联合用药中不合理的是()
A.青霉素+链霉素
B.红霉素+氯霉素
C.青霉素+红霉素
D.红霉素+林可霉素
E.庆大霉素+羧苄西林
参考答案:B, C, D
They ________ to enter the building by the back door; however, the front door was locked.
A.are supposed
B.aren’t supposed
C.weren’t supposed
D.were supposed
朱砂的成人每次用量应是()。
A.1~5g
B.0.1~0.5g
C.0.003~0.01g
D.5~10g
E.15~30g