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航海英語求生用語單項(xiàng)選擇題每日一練(2019.01.19)

來源：考試資料網(wǎng)

1 Seawater may be used for drinking（）.

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2 Limit switches（）.

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3 A tourniquet should be used to control bleeding ONLY（）.

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4 In rough weather，when a ship is able to maneuver，it is best to launch a lifeboat（）.

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5 The bottom row of plating next to the keel of a lifeboat is known as the（）.

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