题目内容:
A.A common rail engine, conventional engines
B.A conventional engine, common rail engines
C.A marine diesel engine, most other engines
D.A two-stroke engine, four-stroke engines
参考答案:
A.A common rail engine, conventional engines
B.A conventional engine, common rail engines
C.A marine diesel engine, most other engines
D.A two-stroke engine, four-stroke engines