青霉素G过敏的患者革兰阳性稍感染时可选用()药物。
A.链霉素
B.头孢菌素
C.红霉素
D.氢氨苄青霉素
E.多粘菌素
参考答案:C
____________ to do the repair, and what you need is only a hammer and some nails.
A.It is hard
B.That is easy
C.That is hard
D.It is easy
发散思维中,基于光栅性质的研究方法有()。