单项选择题
A.0.75%B.0.55%C.0.95%D.1.05%
A.0.5%B.0.7%C.0.9%D.1.0%
A.0.4%B.0.6%C.0.8%D.0.9%
A.10.97MJ/kgB.11.97MJ/kgC.12.97MJ/kgD.13.97MJ/kg
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