单项选择题
A.Come along B.Jigger C.Rigger's screw D.Sealing clamp
A.It makes for an easy connection B.It gives a spring effect to cushion the shock C.It eliminates the necessity of a swivel D.It does not chafe
A.A bowline knot B.A long splice C.An overhand knot with a wire rope clip D.Wire rope clips with a thimble eye