单项选择题

The GMDSS defines four sea area based on the（）.

A.location and capacity of the facilities located on board ships
B.Position and type of a sincre sintion
C.Capacity and location of shore based communication facilities
D.Position and capacity of mobile communication stations

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热门试题

单项选择题The position if the AOR-w satellite in the INMARSAT system is（）above the equator.

A.64.5E
B.178E
C.15.5W
D.54W

单项选择题There is actually an overlapped area of（）ocean regions somewhere in Western European Waters.

A.two
B.three
C.more than two
D.more than three

单项选择题There is actually an overlap of（）ocean regions somewhere in Western European Waters.

A.as many as three
B.more than two
C.less than two
D.up to four

单项选择题There are（）operational satellites in the INMARSAT system covering the whole globe except the polar regions.

A.3
B.4
C.8
D.12

单项选择题The satellites over the major ocean regions cover the globe（）.

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°