A.the stowage location of hazardous material aboard the……

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

单项选择题The air cylinder bottles in the survival craft should be refilled with（）.

A.oxygen
B.nitrogen
C.compressed air
D.nitrogen and oxygen

单项选择题The (auto)ignition temperature is that temperature atwhich（）.

A.no spark or flame is required to ignite gas or vapor
B.a fuel begins to give off explosive vapors
C.a fuel if ignited will continue to burn
D.a 1% mixture of the fuel with air will explode

单项选择题Sulfuric acid is a（）.

A.clear syrupy liquid with no odor
B.colorless-to-brown liquid with a choking odor when hot
C.colorless liquid with a pleasant fruity odor
D.whitish liquid with a faint，pleasant odor