单项选择题
A.shorlanded B.shortshipped C.shortdischareged D.shortoperated
The Captain ordered the dangerous cargo on deck（）to lig...
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
The air cylinder bottles in the survival craft should b...
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
The (auto)ignition temperature is that temperature atwh...
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
