单项选择题
Christopher Columbus （） eighteen years （） planning for that wonderful voyage which he made across the Atlantic Ocean.
A.spends；in
B.spent；on
C.has spent；on
D.had spent；in
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Water can’t be used to put out fires of （）
A.Class A
B.Class B
C.Class C
D.B+C -
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.
A.Ship security officer
B.Company security officer
C.Port facility security officer
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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.
A.Ship security officer
B.Company security officer
C.Port facility security officer
D.PSC officer
