A distress signal().
相似题目
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One of the signals,other than a distress signal,that can be used by a vessel to attract attention is a(n)().
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One of the signals,other than a distress signal,that can be used by a rescue boat to attract attention is a/an().
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All of the following are distress signals under the Rules EXCEPT().
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When you are firing a pyrotechnic distress signal,it should be aimed().
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Which is NOT a distress signal? ()
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Which radiotelephone signal indicates receipt of a distress message?()
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()process the distress signal from EPIRB to determine its position and identity.
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What is NOT a distress signal?()
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If you are on the beach and are signaling to a small boat in distress that your present location is dangerous and they should land to the left,you would().
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After a vessel transmits the original distress message,what signal should be sent to allow ships to take RDF bearings?()
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When you are firing a pyrotechnic distress signal,it should be aimed at().
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A distress signal().
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A vessel in distress should send by radio telephone the two tone alarm signal followed immediately by the().
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All of the following are distress signals EXCEPT().
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()is the most visible signal of distress from a lifeboat at sea in the daytime.
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International distress signal in VHF calling for help is().
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What is NOT a distress signal?().
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When a vessel signals her distress by means of a gun or other explosive signal,the firing should be at intervals of approximately().
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GIVE DISTRESS SIGNALS FOR IDENTIFICATION.的意思是:发出遇险求救信号。