單項選擇題On a light tow，what could you substitute for a fishplate?（）
A.heart-shaped shackle
B.pelican hook
C.swivel
D.ring
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1.單項選擇題Nylon rope is often used in the makeup of a towline because it（）.
A.floats
B.stretches
C.handles easily
D.resists rot
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