The majority of medium speed and high speed marine diesel engines for main or auxiliary drive operate on the （） cycle.<br>A:two-stroke<br>B:four-stoke<br>C:long-stroke<br>D:short-stroke

The majority of medium speed and high speed marine diesel engines for main or auxiliary drive operate on the （） cycle.
A:two-stroke
B:four-stoke
C:long-stroke
D:short-stroke

出自：海船船员证

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