阐述领导职务的用法。

—Could you tell me _____?

—Yes, go along the street and turn left at the second crossing.

    You'll see it on your right. [ ]

A. where is the station

B. how I can get to the station

C. how far is the station

D. when I can get to the station

传播制度理论在分析问题时的四个切入点不包括以下哪个方面？（）

A.传播事业由谁主办？

B.传播媒介为谁讲话？

C.传播媒介起何种作用？

D.新闻媒介能否不接受控制而自由地讲话？

In international trade, the term FOB means （）.

A. free on board

B. freight contract

C. freight and cost

D. free carrier

气管支气管异物的临床表现包括（）

A.刺激性呛咳

B.咯血

C.肺不张

D.反复呼吸道感染

E.抽搐

临床工作中，流行病学方法可用于

A．探讨某种疾病的病因及危险因素
B．筛检某种疾病的病人
C．对诊断试验或方法进行评价
D．评价治疗效果与预后
E．以上均是