單項(xiàng)選擇題
A.automatically suppressed B.finished by the operator C.manually suppressed D.done again
A.Ship stations B.Coast stations C.NCSs D.NCC
A.NBDP B.EGC receiver C.NBDP or both D.EGC receiver or both
A.the ship has received the DSC distress call on a HF frequency B.the coast station concerned has not acknowledged it within 5 minutes C.the ship will take command of search and rescue in 5 minutes D.A and B
A.INMARSAT B.IMO C.MSC D.CES
A.3 B.2 C.1 D.4
A.IMO Headquarters in London B.Inmarsat Headquarters building in London C.Western European Maritime Organization D.International Maritime Safety Committee
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.55.5W B.64.5E C.15.5W D.178E
A.two B.three C.more than two D.more than three
A.Space Segment, NCC, RCC, SES, and CES B.Space Segment, a satellite system, C system, NCC and NCS C.Space Segment, NCC, NCS, CES and SES D.A system, C system, satellite system, earth stations and NCS