A.advance
B.head reach
C.surge
D.transfer
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A.synchronism
B.harmony
C.check
D.step
A.acts as a reserve length of towing hawser when the tug applies more power，and it dampens the surge effect of the tow
B.gives an approximation of the amount of strain on the towing hawser
C.is the dip in the towing hawser between the tug and the tow
D.All of the above
A.the catenary dragging on the bottom
B.swamping of the tow
C.the tow tending to dive
D.yaw
A.take a turn around the cleat，then figure-eights，and a half-hitch
B.make figure-eights，followed by a half-hitch，then a figure-eight knot
C.take a turn，a half turn，and a figure-eight
D.take several turns around the cleat only
A.is the fastest method
B.is easy for a single-screw vessel to perform
C.requires the least shiphandling skills to perform
D.can be used in reduced visibility
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In ballasting to survival draft，while in transit，due to extreme wind and wave loads，thrusters or propulsion，if available，should be used to（）.
Once a towline is connected between the towing vessel and the disabled vessel，the towing vessel should（）.
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（）.
If the towing bridle legs are not of equal length（）.
If a vessel under tow starts jumping on its tow line，the most appropriate action to alleviate the condition is to（）.
A vessel travelling down a narrow channel，especially if the draft is nearly equal to the depth of the water，may set off the nearer side. This effect is known as（）.
In order to back a right-handed，single-screw vessel in a straight line，you will probably need to use（）.
If the towline parts，you should（）.
The best method to secure a tow line to a cleat is to（）.
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（）.