单项选择题
The disinfection of various compartment in a vesel by filling them with a gaseous agents to destroy rats ect.means（）.
A.fire drills B.washing and cleaning C.fumigation D.quarantine
单项选择题 The expenses for the loading of trucks and heavy cargo and the necessary materials for lashing thereof will be charged to（）account.
单项选择题 The full utilization of berths can be achieved if（）.
单项选择题 The KM for a vessel may be determined by which of the following?（）.
