A.will be coming to periscope depth
B.will be coming to the surface
C.is on the bottom in distress
D.is in distress and will try to surface
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A.pulling a submarine cable
B.engaged in diving operations
C.engaged in underway replenishment
D.transferring explosives
A.identity
B.time of origin
C.reply
D.procedure code
A.reply
B.text
C.time
D.answer
A.poor
B.bad
C.fair
D.good
A.RCC
B.OSC
C.CSS
D.GPS
最新試題
Sorry to have kept you（）for a long time.
The Vessel Bridge-to-Bridge Radiotelephone Act applies to（）.
Which of the following statements is TRUE regarding automatic identification systems (AIS) ? （）
The Vessel Bridge-to-Bridge Radiotelephone Act applies to which towboat?（）
Shall we（）wait at the roadstead till there is a free berth for us?
The light rhythm of Morse (A) is shown on（）.
The range of a SSB transmission is MOST affected by（）.
That ship arrived there（）6 p.m.yesterday.
Tell me（），please.
The unit of duration of a dash in Morse Code is（）.