A.two B.three C.more than two D.more than three
A.Yamaguchi, Japan B.Beijing, China C.Nakhodka, Russia D.Perth, Australia
A.Do B.Have C.Make D.Get
A.Goonhilly, UK B.Yamaguchi, Japan C.Perth, Australia D.Southbury, USA
A.danger，stay away B.all is clear，it is safe to pass C.the vessel is anchored D.a distress signal
A.in an inside passageway B.in an approved bracket C.so that it is accessible from the bridge of the vessel D.so that it will float free if the vessel sinks
A.communications in the whole system will stop B.the global system will be damaged C.the back-up one will take its place D.the whole system will not work
A.WMO B.IHO C.IMO D.WARC
A.The Morse code distress series S-O-S repeated 3 times followed by DE and the vessel's call sign B.A line of blip code on a radar screen outward from the SART's position along its line of bearing C.A line of blip code on a radar screen inward from the SART's position to its own ship along its line of bearing D.None of these
A.operates on both military and civilian aircraft distress frequencies B.transmits both an alerting signal and a homing signal C.must be the float free type and automatically activated D.operates with a greater output of signal power
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