问题 单项选择题

How is “radio silence” imposed?()

A.By the On Scene Coordinator (OSC)

B.By the Coast Earth Station (CES) controlling the distress communications on that frequency

C.It is imposed by the Public Correspondence Station (PCS) controlling the distress communications on that frequency or channel

D.It is imposed by the High Seas Service (HSS) controlling the distress communications on that frequency or channel

答案

参考答案:A

单项选择题 A3型题
单项选择题 A1型题