你可能感興趣的試題

單項(xiàng)選擇題

It is NOT advisable to use nylon for alongside towing because it（）.

A.stretches too much
B.is too difficult to make fast
C.parts too readily
D.is too susceptible to mildew

單項(xiàng)選擇題

It is good practice to use long towlines for ocean tows because the（）.

A.wear on the towline is equalized
B.weight of the towline increases the towing force
C.dip in the towline absorbs shock loads
D.danger of overriding is reduced