A.at all times
B.during evening hours
C.unless another person is present
D.during drilling operations
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A.shall
B.should
C.may
D.would
A.of
B.to
C.on
D.with
A.to
B.on
C.of
D.for
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
A.repair
B.repaired
C.repairing
D.to repair
A.good getting ground
B.good holding ground
C.good grabbing ground
D.good handling ground
最新试题
The ship is now down（）head.
Three SHORT BLASTS mean（）.
Which statement is TRUE concerning radiotelephones on board towing vessels?（）
The ship will be（）demurrage soon.
Good anchorage may be obtained anywhere in this water area，the bottom being generally mud and sand，vessel may have（）.
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?（）
To safely anchor a vessel there must be sufficient scope in the anchor cable. Scope is the ratio of（）.
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 statement is TRUE with respect to the elasticity of nylon mooring lines?（）.
The radiotelegraphy safety messages for condition indicating distress，urgency and safety，respectively，are（）.