A.keep radio silence
B.keep radio silent
C.keep radio be silent
D.keep silent the radio
您可能感興趣的試卷
你可能感興趣的試題
A.make out
B.submit
C.produce
D.endorse
A.in
B.into
C.to
D.for
A.much appreciated
B.much appreciating
C.many appreciated
D.many appreciating
A.appreciate
B.appreciated
C.appreciating
D.being appreciated
A.to
B.for
C.of
D.on
最新試題
The company should establish and maintain procedures to control all documents and date which are relevant to（）.
It is dangerous for vessels without the operational radar（）the estuary.
Which of the following is not an operation mode of AIS?（）
Your vessel is docking, but not yet alongside. Which line will be the most useful when maneuvering the vessel alongside the pier?（）.
When steering by autopilot,how often should the steering be checked?（）
Which of the following shall not the officers in charge of the navigational watch do?（）
Before any loading takes place any signs of the previous cargo should do（）.
Berthing means bringing a vessel to her berth until（）.
When the wave period and the apparent rolling period are the same（）.
Shipboard Emergency Drills must be carried out at least（）on board cargo ship.