单项选择题
The IOPP certificate is valid for （）
A.one year
B.two years
C.four years
D.five years
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相关考题
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单项选择题
The shipboard oil pollution emergency plan will be invalid after （）
A.one year
B.two years
C.four years
D.five years -
单项选择题
Prior to a ship’s departure, （） may not always be tested.
A.fire fighting pump
B.the steering gear
C.life boat engine
D.the main engine -
单项选择题
Prior to a ship’s departure from any port （） should be tested with deck officer to ensure satisfactory operation.
A.fire fighting pump
B.the steering gear
C.life boat engine
D.the main engine
