A.Abandon vessel
B.Adrift
C.Beach to
D.Assembly station
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A.displaying a large red flag
B.displaying three black balls in a vertical line
C.sounding four or more short rapid blasts on the whistle
D.continuously sounding the fog whistle
最新試題
Wat is NOT required in the radiotelephone log?（）
Distress flares and smoke signals for small passenger vessels（）.
The Navigation Rules state that a vessel shall be operated at a safe speed at all times so that she can be stopped within（）.
Which condition represents the appropriate time for setting off distress flares and rockets? （）
Which is NOT a distress signal? （）
Which of the following statements about transmitting distress messages by radiotelephone is INCORRECT?（）
When a vessel signals her distress by means of a gun or other explosive signal，the firing should be at intervals of approximately（）.
What is the calling and distress frequency on a single side band (SSB) marine radiotelephone?（）
Which of the following statements about transmitting distress messages by radiotelephone is INCORRECT?（）
If you are transmitting a distress message by radiotelephone you should（）.