单项选择题
A.chain B.wire C.nylon D.manila
On a light tow，what could you substitute for a fishplat...
单项选择题On a light tow，what could you substitute for a fishplate?（）
A.heart-shaped shackle B.pelican hook C.swivel D.ring
Nylon rope is often used in the makeup of a towline bec...
单项选择题Nylon rope is often used in the makeup of a towline because it（）.
A.floats B.stretches C.handles easily D.resists rot
