单项选择题
From the ship owner’s point of view,（）is the most important advantage Inmarsat providing with.
A.business opportunity
B.good-quality radio telephone conversations
C.telex service
D.both B and C
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相关考题
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单项选择题
Ships sailing in（）are able to receive and print out EGC message.
A.a fixed area or Navarea in any ocean region
B.a Navarea or weather forecast area
C.the designated area or given geographic position
D.anywhere of the world -
单项选择题
As each MSI message will have a unique identity, the printing of messages already received correctly is（）.
A.automatically suppressed
B.finished by the operator
C.manually suppressed
D.done again -
单项选择题
DSC distress acknowledgements are normally transmitted by（）in respond to a receiver DSC distress call.
A.Ship stations
B.Coast stations
C.NCSs
D.NCC
