Would you mind（）some dunnage materials for us?

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When flammable liquids are handled in a compartment on a vessel，the ventilation for that area should be（）.

A.operated continuously while vapors may be present
B.operated intermittently to remove vapors
C.available on standby for immediate use
D.shut down if an explosive mixture is present

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

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Argon is classified as a（）.

A.corrosive
B.flammable gas
C.flammable liquid
D.nonflammable gas