单项选择题
What is an advantage of having wire rope with a fiber core over that of a wire rope of the same size with a wire core（）.
A.Fiber core rope offers greater strength B.Fiber core rope offers greater flexibility C.Fiber core rope can be used at higher operating temperatures D.Fiber core rope is the only type authorized for cargo runners
单项选择题 What equipment is customarily used when seamen are working on a stage rigged over the side of a vessel（）.
单项选择题 What does the term end-for-end refer to in regard to a wire towing hawser（）.
单项选择题 What best describes an anchor buoy（）.
