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
单项选择题Close the port side ()(通风口) .
A.ventilators B. designated station C. fire outfit
单项选择题The emergency alarm is sounded on ()(汽笛) according to master’s order.
A.VHF B.whistle C.broadcast D.sextant
单项选择题There is a smell of gas in the hold. You must wear your ()(氧气面罩).
A. fire mask B. breathing apparatus C. life-jacket D. fire drill