单项选择题
A.Carbon dioxide B.Distilled water C.Fresh water D.Salt water
Upon completion of fueling a gasoline driven vessel it ...
单项选择题Upon completion of fueling a gasoline driven vessel it is necessary to（）.
A.keep ports，doors，windows，and hatches closed B.start engines immediately C.ventilate before starting engine D.None of the above
There are（）rats on board.A.notB.noC.anyD.none
单项选择题There are（）rats on board.
A.not B.no C.any D.none
The vessel’s quarter is located（）.A.abeamB.dead asternC...
单项选择题The vessel’s quarter is located（）.
A.abeam B.dead astern C.just forward of the beam on either side D.on either side of the stern
