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单选题
What is NOT a distress signal?（）
A
Red flares or red rockets
B
Continuous sounding of fog signaling apparatus
C
International Code Flags November and Charlie
D
Basket hanging in the rigging
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单选题Which is NOT a distress signal? （）A
A continuous sounding with any fog signal apparatusB
A signal sent by radiotelephone consisting of the spoken word MaydayC
An International Code Signal of N.C.D
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单选题A distress signal（）.A
consists of 5 or more short blasts of the fog signal apparatusB
consists of the raising and lowering of a large white flagC
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单选题Which is a distress signal? （）A
A triangular flag above or below a ballB
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单选题What would NOT be a distress signal?（）A
MAYDAY sent by radiotelephoneB
Continuous sounding of fog hornC
Green star shells fired from a launcherD
Square flag and ball in a vertical line
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单选题Which signal is recognized as a distress signal?（）.A
Directing the beam of a searchlight at another vesselB
A smoke signal giving off orange colored smokeC
A whistle signal of one prolonged and three short blastsD
International Code Signal PAN spoken over the radiotelephone
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单选题After a vessel transmits the original distress message，what signal should be sent to allow ships to take RDF bearings?（）A
SOS three timesB
Additional transmissions to aid direction findingC
E for one minute，followed by T for one minuteD
Two tones，10-15 seconds each
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单选题A distress signal（）.A
consists of 5 or more short blasts of the fog signal apparatusB
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单选题Which is NOT a distress signal?（）A
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An International Code Signal of N.CD
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单选题Which radiotelephone signal indicates receipt of a distress message?（）A
Roger wilcoB
Romeo，romeo，romeoC
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Mayday roger
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COSPAS-SARSATB
ground receiving stationsC
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单选题What is NOT a distress signal?（）A
A continuous sounding of the fog hornB
Firing a gun every minuteC
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COSPAS-SARSATB
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spacecraftD
satellite SAR instrument
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transmit distress signalB
send response signalC
transmit the signal of ship‟s positionD
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