航海英語求生用語單項(xiàng)選擇題每日一練(2019.01.11)

來源：考試資料網(wǎng)

1 In order for combustion to occur inside a piping system such as a vapor collection header in a marine emmission control system，there must be（）.

2 Changing rescuers while carrying out artificial respiration should be done（）.

3 The maximum speed of lowering for a lifeboat on gravity davits is controlled by the（）.

4 Once you have established the daily ration of drinking water in a survival situation，how should you drink it?（）

5 In the first 24 hours after abandoning a vessel，water should be given only to personnel who are（）.