A．An engine room.B．A big kitchen.C．A great theatr

A supercharged engine differs from an un－supercharged engine it operates at an increases pressure.

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Before starting a diesel engine that has an engine driven lube oil pump, the engineer shou

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At the back of the theatre was the bar with a half－glass______ to separate the drinkers an

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Before starting an engine by air, the engine must .A.be turned by a turning gear for at le

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What does the womans father do？A．An architect.B．An engineer.C．An artist.D．A scientist.

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The engineers Amade two big plans Bfor the dam,one of Cwhat was never put Din use.A．B．C．D．

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For a goalkeeper. It’s a great （优势）to have big hands.

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