单项选择题
A vessel brought alongside should be fended off the towing vessel by（）.
A.crew members using their arms B.crew members using the strong muscles of their legs C.fenders D.No fending is necessary due to the rugged construction of most towing vessels
单项选择题 A mooring system that results in a spread system without anchor buoys is called a（）.
单项选择题 A mooring line is described as being 6x24，1-3/4 inch wire rope. What do the above numbersrefer to?（）
单项选择题 A Danforth lightweight anchor does NOT hold well in which type of bottom? （）
