A、vessel being towed
B、fishing vessel engaged in trawling
C、vessel at anchor warning of her location
D、power-driven pilot vessel on station underway
更多“A fog signal consisting of one prolonged blast followed by four short blasts would indicate thepresence of a（）.”相关的问题
A、consists of 5 or more short blasts of the fog signal apparatus B、consists of the raising and lowering of a large white flag C、may be used separately or with other distress signals D、is used to indicate doubt about another vessel's intentions
A、consists of 5 or more short blasts of the fog signal apparatus B、may be used separately or with other distress signals C、consists of the raising and lowering of a large white flag D、is used to indicate doubt about another vessel's intentions
A、consists of 5 or more short blasts of the fog signal apparatus B、consists of the raising and lowering of a large white flag C、may be used individually or in conjunction with other distress signals D、is used to indicate doubt about another vessel's intentions
A、A continuous sounding with any fog signal apparatus B、A signal sent by radiotelephone consisting of the spoken word Mayday C、An International Code Signal of N.C D、The firing of green star rockets or shells
A、A continuous sounding with any fog signal apparatus B、A signal sent by radiotelephone consisting of the spoken word "Mayday" C、An International Code Signal of N.C. D、The firing of green star rockets or shells
A、Mention signal stations and ice，storm，traffic and port signals B、Give the international numbers of lights C、Give the correction of the lights and fog signals D、Give the information on the lights and fog signals
A、Ocean Passages for the World B、Admiralty List of Radio Signals C、IALA Maritime Buoyage System D、Admiralty List of Lights and Fog Signals
A、When the towing vessel enters the fog B、When the drilling rig enters the fog C、When the towing vessel can no longer be seen from the rig D、Immediately
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