单项选择题
A.moved and fitting again
B.removed and refitted
C.reproduced and put on again
D.return and attached again
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（）.
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（）.