单项选择题
Which tool is used to open the strands of fiber lines when making an eye splice?（）
A.Belaying spike B.Fid C.Heaver D.Pricker
单项选择题 Which term describes a part of a natural fiber line?（）
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?（）
