单项选择题
A.shown at the bow B.white in color C.shown in addition to the stern light D.an all-round light
A towing hook may be released from the（）.A.tugs enginer...
单项选择题A towing hook may be released from the（）.
A.tug's engineroom or the bow B.pilot house or aft steering station C.forecastle D.towing bitts by reaching over and releasing a lever
A tow that is properly aligned to pass through a narrow...
单项选择题A tow that is properly aligned to pass through a narrow opening between two bridge piers is “ （）”.
A.on course B.headed fair C.holding on D.in shape
A tow of 9 barges is made up three abreast by three lon...
单项选择题A tow of 9 barges is made up three abreast by three long. The towboat is faced up to the last barge of the center string. The outer two strings of barges are the（）.
A.port and starboard strings B.outer strings C.drag strings D.side strings
