单项选择题
A.spends;in
B.spent;on
C.has spent;on
D.had spent;in
单项选择题 Water can’t be used to put out fires of ()
单项选择题 ()means the person designated as responsible for the development, implementation, revision and maintenance of the port facility security plan and for liaison with the ship security officers and company security officers.
单项选择题 () means the person designated by the Company for ensuring that a ship security assessment is carried out; that a ship security plan is developed, submitted for approval, and thereafter implemented and maintained and for liaison with port facility security officers and the ship security officer.