Diesel engines are started by supplying （） into the cylinders in the appropriate sequence for the required direction.<br>A:cooling water<br>B:compressing air<br>C:compressed air<br>D:cylinder oil

Diesel engines are started by supplying （） into the cylinders in the appropriate sequence for the required direction.
A:cooling water
B:compressing air
C:compressed air
D:cylinder oil

出自：海船船员证

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