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[单选题]

The working cycle of a four-stroke diesel engine consists of four events:（）

(1) compression

(2) expansion

(3) exhaust

(4) suctionThe correct sequence is

A . (4)-(2)-(3)-(1)

B . (4)-(3)-(1)-(2)

C . (4)-(3)-(2)-(1)

D . (4)-(1)-(2)-(3)

参考答案与解析：

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