航海英語船舶設(shè)備名稱單項選擇題每日一練(2019.01.05)

來源：考試資料網(wǎng)

1 A strong back refers to a（）.

2 In ship operations，hoisting and lowering pipe in and out of the drilled hole is the main function of the（）.

3 The exhaust pipe must be gas tight throughout its entire length otherwise（）.

4 If the engine of a survival craft does not start，check to see（）.

5 The portable radio apparatus means（）.