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航海英語船舶救生設(shè)備名稱單項選擇題每日一練(2019.01.23)

來源：考試資料網(wǎng)

1 Instead of whipping an end of a line，a temporary means of preventing the line from unraveling is to tie a（）.

2 Is it safe（）a rocket?

3 A hook that will release quickly is a（）.

4 A hydrostatic release mechanism for a liferaft（）.

5 A stopper is（）.