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航海英語消防用語單項(xiàng)選擇題每日一練(2019.01.04)

來源：考試資料網(wǎng)

1 The canvas covering of fire hose is called the（）.

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2 Removing which will extinguish a fire?（）.

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3 After using a Halon extinguisher，it should be（）.

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4 On a ship，when may a work vest be substituted for a required life preserver?（）

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5 A fire hose with a nozzle attached must be connected to each hydrant except when exposed to heavy weather or when the（）.

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