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航海英語救生用語單項選擇題每日一練(2019.01.25)

來源：考試資料網(wǎng)

1 How many adult life jackets are required on board a ship?（）

2 Each life jacket light that has a non-replaceable power source must be replaced（）.

3 Which person may command a lifeboat in ocean service?（）

4 The maximum number of passengers a T-Boat may carry（）.

5 Life jackets should be marked with the（）.

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