问题描述：
[单选]
The term（）refers to one complete sequence of operations required to produce power in an engine．
A．diesel engine
B．stroke
C．cycle
D．compression ratio
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答案解析：无
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上一篇：The two-stroke cycle begins with the piston coming up from the bottom of its stroke， with scavenge ports in the sides of the cylinder being（）．
下一篇：The supercharger takes air out of the surrounding atmosphere and then feeds it to the engine’s（）．
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