单项选择题
Which spoken emergency signal would you use to call a boat to come assist a man overboard?（）
A.Distress signal
B.Urgency signal
C.Safety signal
D.None of the above
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相关考题
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单项选择题
Which mooring line is likely to undergo the most strain when docking a ship under normal conditions?（）
A.Bow line
B.Breast line
C.Spring line
D.Stern line -
单项选择题
Which mooring line has the least elasticity?（）
A.Dacron
B.Nylon
C.Esterlene
D.Polypropylene -
单项选择题
Which method of adjusting mooring lines is MOST useful for leaving a boat free to rise and fall with the tide?（）
A.Crossing the spring lines
B.Slacking all forward running lines while keeping all after running lines taut
C.Doubling up on spring or breast lines
D.Slacking bow and stern lines
