單項(xiàng)選擇題

Vessels are required to illuminate their（）to aid identification.

A.funnels
B.tunnels
C.channels
D.handles

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單項(xiàng)選擇題

Vessels ramaining（）a few hours should moor with anchors.

A.much than
B.more than
C.many than
D.lot than

單項(xiàng)選擇題

Vessels should be manned（）duly qualified officers and crew adequate（）ensure the safety of navigation.

A.by/to
B.with/to
C.with/for
D.from/for

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