第1题:[单选题]A chain bridle is used when towing astern because it ______. A.Is easy to connect B.Provides an effective catenary and absorbs shock due to its weight C.Makes rigging a swivel unnecessary D.Prevents the tow from yawing by the drag of the chains in a seaway 参考答案:B 【参考译文】链索由于尾拖是因为它的重量可提供有效的悬链并吸震。 【解 析】catenary悬链