单项选择题
A.right the craft in case of capsizing B.increase area for radar detection C.act as a sail in case of a power loss D.steady the craft in heavy seas
A.a tack weld B.the self-locking characteristics of its taper C.a cotter pin D.a lead plug
A.be at least 3/8 inch diameter and properly secured around the sides and ends of the device B.be festooned in bights not longer than three feet long C.have a seine float in each bight unless the line is an inherently buoyant material D.All of the above