單項(xiàng)選擇題Vessel towing with the current shall（）tow more than two boats and they must be towed alongside.

A.at times
B.at any time
C.at no time
D.at moment


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1.單項(xiàng)選擇題Vessels are required to illuminate their（）to aid identification.

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

2.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

4.單項(xiàng)選擇題VHF radio is one of the very important navigational instruments on board,（）messages can be sent.

A.by which
B.through which
C.by that
D.through that

5.單項(xiàng)選擇題When（）,the provision of the bill of lading will be used as a basis for settlement.

A.an event is in connection with the marine peril at sea
B.a matter is linked to a person injury
C.a fact is being contacted by charter party
D.a case is related to dispute about cargo