航海英語海上搜索單項選擇題每日一練(2019.01.07)

來源：考試資料網(wǎng)

1 The only type of helicopter that may be refueled with the engine running and the blades turning is（）.

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

3 An uncontrolled flow of gas，oil，or other well fluids into the atmosphere is called a（）.

4 All the traces are（）old ones.

5 An emergency sea anchor may be constructed by using（）.

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