单项选择题

If the situation arose where it became necessary to tow a disabled vessel，which statement is TRUE concerning the towing line?（）.

A.The towing line between the two vessels should be clear of the water
B.The towing line should be taut at all times between the vessels
C.There should be a catenary so the line dips into the water
D.None of the above

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单项选择题

If a tow sinks in shallow water，you should（）.

A.release it immediately
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C.pay out cable until it's on the bottom and place a buoy on the upper end
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