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單項(xiàng)選擇題

The fuel injection system is very important, so any trouble of it will （） the operation of the main engine.

A.be affected
B.affect
C.be effected
D.effect

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單項(xiàng)選擇題

If you don’t understand the meaning of the technical terms of the diesel engine, you can （） the dictionary of machine technology.

A.look for
B.find out
C.consult
D.read

單項(xiàng)選擇題

The fuel oil pressure and forced draught pressure should be matched to ensure good combustion with a full steady flameIn the sentence the word “match” means （）

A.join with
B.mix
C.be equal to
D.be constant