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【单选题】
由等温放热过程、绝热压缩过程、等温加热过程和绝热膨胀过程所组成的循环是A.
柴油机工作循环
B.
二次回热循环
C.
逆卡诺循环
D.
蒸汽动力循环
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B.
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B.
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C.
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B.
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C.
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D.
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A.
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B.
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C.
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D.
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