单项选择题
The knot at the end of the heaving line used to pass the towing hawser is called a（）.
A.monkey's fist B.ball or baseball knot C.heaving knot D.three strand Turk's head
单项选择题 he heel block is located（）.
单项选择题 The disadvantage of using three strand nylon line for towing is its（）.
单项选择题 The correct way to make an eye in a wire rope with clips is to place the clips with the（）.
