题目内容

What's English for A-型构架?

A. Cylinder block.
B. A-shaped Frame.
C. Entablature.
D. Bedplate.

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A. Bearing bush.
B. Crosshead bearing
C. Thrust bearing.
D. Bearing caps.

A. Poppet valve.
B. Non-return valve.
C. Butterfly valve.
D. Ball valve.

A. These are boilers.
B. They are valves.
C. There are lubricating oil pumps.
D. They are cylinder liners.

A. I don't know Mr. Stevenson.
B. Mr. Stevenson works for PSC.
C. Mr. Stevenson comes from PSC.
D. Mr. Stevenson is a seaman.