客人打电话要求服务员进房间时,服务员必须在()分钟内赶到客人房间。
A、3
B、4
C、5
D、6
参考答案:A
—What are you looking for on the Internet?
—I'm trying to find out _____. [ ]
A. what is the difference between British English and American English
B. how much is this book
C. how to use the new vacuum
致肺部感染的厌氧菌中,下列对青霉素不敏感的是()
A.微需氧链球菌
B.消化链球菌属
C.消化球菌属
D.核粒梭状杆菌
E.脆弱类杆菌