搜题

【单选题】

When possible，what is the FIRST step in fighting an engine fuel-pump fire which results from a broken fuel line?（）

A、Secure all engine room doors，hatches，and vents

B、Close the fuel line valve

C、Check the spread of the fire with foam

D、Cast the barge off the wharf

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第1题

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第9题

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A、A. What，Why，Who，Where，When，How many，How much B、B. What，Why，We，Where，When，How to，How much C、C. What，Why，We，Where，When，How，How much D、D. What，Why，Who，Where，When，How，How much

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