你可能感興趣的試題

單項(xiàng)選擇題

The main engine is cooled with fresh water （）is added suitable small quantities of chemicals to prevent corrosion.

A.in which
B.on which
C.to which
D.by which

單項(xiàng)選擇題

（）during the last repair?

A.Did you have No.4 cylinder repair
B.Do you have No.4 cylinder repaired
C.Didn’t you have No.4 cylinder repairing
D.Didn’t you have No.4 cylinder repaired

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The exhaust ports are located around the lower part of the cylinder liner, （）the products of combustion are driven by scavenging air.

你可能感興趣的試題

The main engine is cooled with fresh water （）is added suitable small quantities of chemicals to prevent corrosion.

（）during the last repair?

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