A.64.5E
B.178E
C.15.5W
D.54W
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A.two
B.three
C.more than two
D.more than three
A.as many as three
B.more than two
C.less than two
D.up to four
A.3
B.4
C.8
D.12
A.besides the polar regions
B.including the North Pole and the South Pole
C.above 70°N and below 70°S
D.as for north and south as 70°
A.be transmitted at once though the frequency is not clear
B.be transmitted as soon as the frequency is cleared coordinately
C.be transmitted at its scheduled transmissions
D.be transmitted at next scheduled transmissions
最新試題
The vessel has stayed in port for seven days because she needs（）.
What following is not among the function of SOLAS ships?（）
Every lifeboat which is fitted with a fixed two-way（）radiotelephone apparatus with an antenna which is separately mounted shall be provided with arrangements for sitting and securing the antenna effectively in its operating position.
If the beacon is mounted at a wrong place, it may（）by sea water, chemicals, exhaust and vibrations.
Stations in the United States of America are grouped by states arranged in the alphabetical order of their（）.
The priority of EGC messages is classified by（）.
Particular care should be（）in selecting CESs in areas where Ocean Regions overlap.
Every lifeboat which is fitted with a fixed two-way vhf radiotelephone apparatus with（）which is separately mounted shall be provided with arrangements for sitting and securing the antenna effectively in its operating position.
Before GMDSS, if the radio officer on board is serious ill,（）.
The rescue coordination center may（）on stations which interfere with traffic.