单项选择题
A.actual total loss B.constructive total loss C.general average D.particular average
A backlash below a lock is defined as a（）.A.current set...
单项选择题A backlash below a lock is defined as a（）.
A.current setting your vessel on the wall B.current setting into the lock chamber C.an eddy working along the lower guide wall D.current setting counterclockwise
A “spring line” is（）.A.any wire rope used for mooringB....
单项选择题A “spring line” is（）.
A.any wire rope used for mooring B.a fire-warp C.a mooring line running diagonally to the keel D.a mooring line perpendicular to the keel
A “sheepshank” is used to（）.A.keep a line from frayingB...
单项选择题A “sheepshank” is used to（）.
A.keep a line from fraying B.join lines of unequal size C.stop off a line D.shorten a line
