A.the man has been missing for a period of time
B.the sea water is very cold and the man is visible
C.there is thick fog
D.the wind was from astern on the original course
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A.correct trim will be obtained more easily
B.drag effect will be cancelled out
C.side forces will be eliminated
D.speed will be increased
A.trim the tow by the stern
B.trim the tow by the head
C.have the tow on an even keel
D.list the tow on the side it is yawing
A.should not be regarded as a vessel constrained by her draught
B.should be regarded as a vessel constrained by her draught
C.shall be regarded as a vessel restricted in her ability to maneuver
D.should be regarded as a non-displacement vessel
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Once a towline is connected between the towing vessel and the disabled vessel，the towing vessel should（）.
In towing，heaving lines are used for（）.
As a vessel falls off the wind from close-hauled to a beam reach，the tendency for the vessel to move sideways through the water will（）.
A vessel which through some exceptional circumstance is unable to maneuver as required by these Rules and is therefore unable to keep out of the way of another vessel is called（）.
In order for a vessel to be engaged in fishing she must be（）.
In towing it is desirable for the tug and the vessel to ride wave crests simultaneously because（）.
The best method to secure a tow line to a cleat is to（）.
If a vessel under tow starts jumping on its tow line，the most appropriate action to alleviate the condition is to（）.
The distance that a vessel travels from the time that the order to put engines full astern until the vessel is dead in the water is known as（）.
A vessel，which is unable to maneuver due to some exceptional circumstance，shall exhibit （）.