单项选择题
A.80h B.100h C.120h D.150h
A.18.5kW B.5kW C.960kW D.1500kW
A.32~38L B.30~34L C.38.3~44.3L D.15~40L
A.0.5 B.0.7 C.0.8 D.0.9
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