军团菌肺炎首选抗菌药物
A．红霉素
B．青霉素
C．丁胺卡那霉素
D．四环素
E．头孢菌素
参考答案：A
It can not be a(n) ___that four jewellery stores were robbed in one night.
A．coincidence
B．accident
C．incident
D．chance
关于内耳道扩大的标准，两侧扩大超过（）
A.1.5mm
B.2.0mm
C.2.5mm
D.3.0mm
E.1.0mm
