The sign used to caution persons approaching the gangway of a tank barge during cargo transfer reads（）.

单项选择题The shipper must（）in a suitable manner dangerous goods as dangerous.

A.mark or label
B.write or sign
C.type or stamp
D.print or paint

单项选择题The nozzle of a gasoline hose or can should be kept（）.

A.in contact with the fill opening to guard against static spark
B.from making contact with the fill opening to guard against static spark
C.in contact with the fill opening to allow proper venting
D.None of the above

单项选择题The dangerous cargo manifest does NOT indicate（）.

A.the stowage location of hazardous material aboard the vessel
B.a description of the packaging
C.UN identification numbers
D.the net weight of each hazardous cargo

单项选择题The case for Dangerous Goods in question was badly crushed and was returned to dock shed and （）.

A.shorlanded
B.shortshipped
C.shortdischareged
D.shortoperated

单项选择题The Captain ordered the dangerous cargo on deck（）to lighten the ship and minimize the risk at sea.

A.be jettisoned
B.be dropped
C.be dived
D.be abandoned