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
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相关考题
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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 -
单项选择题
Which signal is recognized as a distress signal?（）.
A.Directing the beam of a searchlight at another vessel
B.A smoke signal giving off orange colored smoke
C.A whistle signal of one prolonged and three short blasts
D.International Code Signal PAN spoken over the radiotelephone
