单项选择题
A.7.74%~35.31% B.13.5%~88% C.40%~73.5% D.19%~71%
A.13.91×10-6m2/s B.18.31×10-6m2/s C.21.15×10-6m2/s D.23.47×10-6m2/s
A.0.285kg/m3 B.0.347kg/m3 C.0.493kg/m3 D.0.527kg/m3