单项选择题
Which term describes a part of a natural fiber line?（）
A.Lacings B.Lays C.Strands D.Twines
单项选择题 Which statement is TRUE with respect to the elasticity of nylon mooring lines?（）.
单项选择题 Which statement is TRUE concerning radiotelephones on board towing vessels?（）
单项选择题 Which statement is TRUE about placing the eyes of two mooring lines on the same bollard?（）
