以下所列药物中，治疗老年细菌性严重感染首选的是
A．多粘菌素 B．万古霉素C．氟喹诺酮类 D．氨基糖苷类E．静脉滴注大剂量青霉素
参考答案：C
-- Do you think I should get a good guidebook?
-- Yes, of course. __________ , you also need a good camera and comfortable shoes.
A．Furthermore
B．In other words
C．By the way
D．All in all
Kronig峡变窄主要见于
A．胸腔积液
B．肩胛宽
C．肺气肿
D．肺尖结核
E．肺炎
