A.to
B.on
C.of
D.for
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A.urgency or an emergency
B.the vessel's national identity signal
C.a group from the general signal code
D.a group from the medical signal code
A.Hard rubber
B.Canvas
C.Leather
D.Sponge rubber
A.at the lowest point
B.near the batteries
C.at the highest point
D.only when charging is in progress
A.take part
B.watch
C.go to their quarters
D.stay out of the way and do what they want
A.obliged
B.obliging
C.oblige
D.being obliged
最新試題
Which term describes a part of a natural fiber line?（）
The radiotelegraphy safety messages for condition indicating distress，urgency and safety，respectively，are（）.
The ship is not very stable，please（）when making a turn.
Which statement is TRUE concerning radiotelephones on board towing vessels?（）
Which tool is used to open the strands of fiber lines when making an eye splice?（）
Geographic range is the maximum distance at which a light may be seen under（）.
Which method of adjusting mooring lines is MOST useful for leaving a boat free to rise and fall with the tide?（）
Proper use shall be made（）radar equipment if fitted and operational.
Which spoken emergency signal would you use to call a boat to come assist a man overboard?（）
Which mooring line is likely to undergo the most strain when docking a ship under normal conditions?（）