单项选择题
A.100%B.80%-90%C.70%-80%D.90%-100%
A.20℃下,85kPaB.22℃下,85kPaC.20℃下,95kPaD.22℃下,95kPa
A.182KWB.208KWC.156KW
A.0.25hB.1hC.0.5h
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