A.has left already
B.left already
C.had left already
D.would left already
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A.provide safety-related information automatically to shore stations，other vessels and aircraft
B.receive safety-related information automatically from similarly equipped vessels
C.exchange safety-related information with shore-based facilities
D.All of the above
A.AIS may be used to make passing arrangements via ship-to-ship text messaging thus relieving a vessel operator from sounding whistle signals or making contact via radiotelephone
B.AIS may be used to make passing arrangements via ship-to-ship text messaging but a vessel operator is still required to sound whistle signals unless the arrangement is made via radiotelephone
C.AIS cannot be used to make passing arrangements because the system does not have the ability to communicate from ship-to-ship in this manner
D.AIS cannot be used to make passing arrangements because the use of the ship-to-ship text messaging feature in this way is prohibited
A.waiting
B.wait
C.waited
D.to wait
A.one minute
B.three minutes
C.five minutes
D.eight minutes
A.which hatch will be loaded first
B.will which hatch be loaded first
C.will hatch of which be loaded first
D.first will which hatch be loaded
A.Vessel's type
B.Vessel's course
C.Navigational status
D.All of the above
A.waiting
B.awaiting
C.awaiting for
D.waited
A.isn't he
B.doesn't he
C.hasn't he
D.didn't he
A.AIS is a global tracking system that relies upon INMARSAT C service to communicate vessel position and other safety related information to similarly equipped vessels，aircraft and shore stations within the area
B.AIS is a short-range 3 cm X-band radar system that automatically sends a vessel's position and other safety related information to similarly equipped vessels，aircraft and shore stations within the area
C.AIS is a short-range VHF-FM system that automatically broadcasts a vessel's position and other safety related information frequently to similarly equipped vessels，aircraft and shore stations within the area
D.AIS is a one-way centrally managed system that requires the local VTS to send commands to instruct each vessel to broadcast position and other safety related information to similarly equipped vessels，aircraft and shore stations within the area
A.must
B.ought to
C.have to
D.never
最新試題
By regulation，you MUST keep a record of the use of your radiotelephone for at least（）.
Tell me（），please.
The following（）is a standard phrase.
Free communication effect is in direct proportion to（）.
Take tug’s towing line to（）.
Which of the following statements is TRUE regarding automatic identification systems (AIS) ?（）
PORT A BIT SLUGGISH means that port rudder（）.
To reduce the amount of catenary you may（）.
When may the automatic identification system (AIS) be switched off? （）
When should the emergency position-indicating radiobeacon be activated after abandoning a ship?（）