航海英語消防演習與作業(yè)單項選擇題每日一練(2019.01.24)

來源：考試資料網(wǎng)

1 After using a CO₂ extinguisher on a ship，it should be（）.

2 Generally，the first action in extinguishing an LFG fire caused by escaping gas is to（）.

3 An inflatable liferaft should be lifted back aboard the ship by using（）.

4 Except in rare cases，it is impossible to extinguish a shipboard fire by（）.

5 Fire alarm system thermostats are actuated by（）.