A.lifeboat B.medicine C.firefighting D.lifesaving
单项选择题（）(停顿) for a while when the boat leaves the surface.
A.Halting B.Halt C.Adjust D.Heave
单项选择题（）(所有船员) must know the locations as well as the operations of the life-saving and fire-fighting appliances.
A. All officers B. All engineers C. All the crew D. AB and C
单项选择题Second Officer, give one （）(长声).
A. blast B. short blast C. prolonged blast D. prolonged blasts
单项选择题Where do you post your （）(火势控制图)?
A. fire control plan B. fire control C. fire plan D. fire-fighting plan
单项选择题Send a fire （）(火势探测员) to see the situation .
A.detect B.detector C.watch D.inspector
