A.cargo which occupies a large volume of space B.cargo which requires refrigeration C.cargo which is very dense D.homogeneous cargo not enclosed in a container
单项选择题If a vessel takes a sudden severe list or trim from an unknown cause,you should FIRST().
A.determine the cause before taking countermeasures B.assume the shift is due to off-center loading C.counterflood on the side opposite the list or trim D.assume the cause is environmental forces
单项选择题The disinfection of various compartments in a vessel by filling them with a gaseous agents to destroy rats etc.means().
A.fire drills B.washing and cleaning C.fumigation D.quarantine