单项选择题
Acknowledgement by you of receipt of a distress message from a vessel which，beyond any possible doubt，is not in your vicinity and is a long distance away must be made when（）.
A.Vessels nearer the distress vessel acknowledge receipt
B.Vessels nearer the distress vessel fail to acknowledge receipt
C.Even you have not reveived the distress
D.Even the vessel in distress expressly prohibit you from providing any salvage service
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相关考题
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单项选择题
If you are transmitting a distress message by radiotelephone you should（）.
A.use English language
B.always use the International Code
C.preface it by the word SOS
D.follow the transmission with the radio alarm signal -
单项选择题
A person who sees someone fall overboard should（）.
A.call for help and keep the individual in sight
B.run to the radio room to send an emergency message
C.immediately jump in the water to assist the individual
D.go to the bridge to report the captain -
单项选择题
（）is the most visible signal of distress from a lifeboat at sea in the daytime.
A.Smoke signal
B.Flash signal
C.Fire signal
D.Radio emergency transmission
