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单选题
A vessel is approaching from dead ahead． Both of her sidelights are visible and her range lights are in line. Which of the following could you do first?（）.
A
Sound one blast of the whistle
B
Alter course to starboard
C
Construct a radar plot
D
Sound the danger signal
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The other vessel must give way，since your vessel is stoppedC
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考题
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Sound one blast of the whistleB
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考题
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only the lights for a vessel towingB
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考题
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directly under the boomB
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考题
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考题
单选题Risk of collision may exist（）.A
if the compass bearing of an approaching vessel does not appreciably changeB
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考题
单选题A vessel is equipped with twin propellers，both turning outboard with the engines half ahead. If there is no wind or current and the rudders are amidships，what will happen?（）A
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考题
单选题Approaching an anchorage in fog，you hear one short，one prolonged，and one short blast in that sequence on a ship’s whistle． This indicates（）.A
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keep the buoy on the vessel's starboard side when approaching a port and on the vessel's port side when leavingB
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keep the buoy on the vessel's starboard side when approaching and leavingD
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By backing down the track and cutting out ice on either bowB
By approaching from the stern and crossing ahead at an angle of 20°to 30°to the beset ship's courseC
By overtaking the beset ship，running ahead and then backing down the track to the beset vesselD
By approaching the vessel from astern and towing the beset vessel stern first
考题
单选题The term of landfall means（）.A
land first sighted when vessel approaching from seawardB
land last sighted when vessel leaving from a portC
in sight of one another when vessel underwayD
in sight of an island during a ship on her voyage
考题
单选题A vessel is equipped with twin propellers，both turning outboard with the engines half ahead. If there is no wind or current and the rudders are amidships，what will happen?（）.A
The bow will swing to starboardB
The bow will swing to portC
The vessel will steer a zigzag courseD
The vessel will steer a fairly straight course
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