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
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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
