A.at
B.for
C.in
D.on
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A.on
B.by
C.in
D.for
A.stop down
B.speed down
C.slow down
D.down slow
A.SOS，ZZZ，XXX
B.SOS，UUU，SSS
C.SOS，XXX，TTT
D.SOS，TTT，UUU
A.final topping off is occurring
B.first starting to receive fuel
C.hoses are being blown down
D.hoses are disconnected and being capped
A.at all times
B.during evening hours
C.unless another person is present
D.during drilling operations
最新試題
Where would you find the call sign or call letters of the radio station on your ship?（）
I would be very much（）if you could arrange for a radio technician to come on board as soon as possible for my radar repair.
Which mooring line is likely to undergo the most strain when docking a ship under normal conditions?（）
The radiotelegraphy safety messages for condition indicating distress，urgency and safety，respectively，are（）.
Which method is used to detect rot in manila lines?（）
Which statement is TRUE about placing the eyes of two mooring lines on the same bollard?（）
Which may ignite fuel vapors?（）
Which spoken emergency signal would you use to call a boat to come assist a man overboard?（）
In order to prevent galvanic corrosion，an aluminum boat must be insulated from the davits and gripes. Which of the following is acceptable as an insulator?（）
The ship is now down（）head.