单项选择题
The disinfection of various compartments in a vessel by filling with a gaseous agent to destroy rats and all insects pests which act as germ carriers means（）.
A.displacement B.fumigation C.discharging D.compensation
单项选择题 The equipment is very old. It’s not worth（）.
单项选择题 The expenses for such work done by stevedores are（）shipowners’（）.
单项选择题 The Greek ship drifted and struck the portside of a Chinese ship, which（）the bulwalk and stanchions.
