
A.
B.
C.PM10
D.CO
E.
[单选题]A.B.C.当计算水一水换热器时,应计入水垢系数0.8~0.7D.实际换热面积应取计算面积的1.30~1.50倍
[单选题]A.B.C.当计算水一水换热器时,应计入水垢系数0.8~0.7D.实际换热面积应取计算面积的1.30~1.50倍
[单选题]A.260~320WB.430~470WC.840~880WD.1380~1420W
[单选题]A.260~320WB.430~470WC.840~880WD.1380~1420W
[单选题]A.49.531mB.49.571mC.49.546mD.49.568m
[单选题]A.49.531mB.49.571mC.49.546mD.49.568m