单项选择题
A.Starting the disengaged windlass at high speed
B.Rigging a bull rope to pull it out
C.To grease the hawsepipe
D.To pry it loose with a short piece of pipe
单项选择题 When a davit-launched raft is lowered from a ship，upon becoming waterborne，the raft is released by（）.
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（）.
单项选择题 What equipment is customarily used when seamen are working on a stage rigged over the side of a vessel（）.