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
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.
Smoking in bed on a ship is prohibited（）.
Which statement is TRUE concerning radiotelephones on board towing vessels?（）
Good anchorage may be obtained anywhere in this water area，the bottom being generally mud and sand，vessel may have（）.
To safely anchor a vessel there must be sufficient scope in the anchor cable. Scope is the ratio of（）.
The radiotelegraphy safety messages for condition indicating distress，urgency and safety，respectively，are（）.
Which may ignite fuel vapors?（）
The most likely time for oil pollution while bunkering is when（）.
If passengers are on board when an abandon ship drill is carried out，they should（）.