单项选择题
A.smelling the bottom B.squatting C.bank suction D.bank cushion
A vessel towing astern in an operation which severely r...
单项选择题A vessel towing astern in an operation which severely restricts the towing vessel and her tow in their ability to change course shall，when making way，exhibit（）.
A.the masthead lights for a towing vessel B.the lights for a vessel restricted in its ability to maneuver C.sidelights，sternlight and towing light D.All of the above
A vessel is equipped with a single right-handed screw. ...
单项选择题A vessel is equipped with a single right-handed screw. With rudder amidships and calm wind，the vessel will most likely back（）.
A.straight astern B.to port C.to starboard D.in no particular direction
A vessel is considered to be restricted in her ability ...
单项选择题A vessel is considered to be restricted in her ability to maneuver under the Rules if she is （）.
A.at anchor B.mine-clearing C.engaged in fishing D.engaged in towing
