單項(xiàng)選擇題
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
A.64.5E B.178E C.15.5W D.54W
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
A.meteorological warnings B.navigational warnings C.search and rescue information D.meteorological forecast
A.300 B.400 C.500 D.600
A.on the bridge B.in the coast station C.on the forecastle D.on starboard side
A.subject for B.liable to C.easy to meet D.always encounter
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