单项选择题
The sign used to caution persons approaching the gangway of a tank barge during cargo transfer reads（）.
A.Warning，Keep Off，Stay Clear
B.Danger，Do Not Board
C.Warning，No Smoking，No Open Lights，No Visitors
D.Dangerous Cargo Being Transferred
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相关考题
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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
