On hearing the fire signal, the crew should carry out their assigned duties immediately.（）

单项选择题船舶发生溢油事故时，水手的主要工作是清理油污。（）

A. When oilspilling happens on board, the sailors’ work is to do oil-cleaning.
B. When oilspilling happens on board, the sailors’ work is painting.
C. When oilspilling happens on board, the sailors’ work is to do some repair work.
D. When oilspilling happens on board, the captain is in over command of it.

单项选择题救火队员之间用灯光保持视觉联系。（）

A. Fire party members maintain contact with lamps.
B. Fire party members maintain visual contact use lamps.
C. Fire party members maintain visual contact with lamps.
D. Fire party members maintain visual contact by lamps.

单项选择题我在现场组织救火。（）

A. I’m on the spot organize firefighting.
B. I’m on the spot organizing firefighting.
C. I’m at the spot organizing firefighting.
D. I’m at the spot organize firefighting.

单项选择题救生圈在甲板栏杆上。（）

A. The lifebuoys are on the main deck.
B. The lifebuoys are on the forecastle.
C. The lifeboat is on the deck railing.
D. The lifebuoys are on the deck railing.

单项选择题生活区保持防火巡回检查。（）

A. Have fire patrols in the accommodation.
B. Have fire patrols for the accommodation.
C. Have fire watch in the accommodation.
D. None of them.