单项选择题
An intermediate spring is（）.
A.Fitted in each leg of the towing bridle B.Generally located between the “fishplate” and the main towing hawser C.Secured at the “H” bitts D.Usually made of manila hawser
单项选择题 A spanner is a（）.
单项选择题 A long splice in a line（）.
单项选择题 A hook that will release quickly is a（）.
