单项选择题
The rope which is rove from the truck to be used with a bos’n chair is called a（）.
A.gantline B.life line C.strop D.whip
单项选择题 The rolling hitch could be used to（）.
单项选择题 The purpose of a devil’s claw is to（）.
单项选择题 The only wire rope termination which may be made in the field is（）.
