航海英語海上搜索單項選擇題每日一練(2019.01.26)

來源：考試資料網(wǎng)

1 The self-contained breathing device should not be used in which situation（）.

2 When retrieving the survival craft，the winch operator should stop the winch and check（）.

3 In case of your steering gear failed，（）should be exhibited in shapes or lights.

4 （） is not a search manual.

5 When a rescue vessel approaches a lifeboat in heavy seas，the person in charge of the lifeboat should（）.