单项选择题
A.0.75m/d B.1.38m/d C.2.65m/d D.3.00m/d
A.0.912 1.5g/cm3 1.85g/cm3 B.0.912 1.6g/cm3 1.85g/cm3 C.0.819 1.6g/cm3 1.95g/cm3 D.0.819 1.5g/cm3 1.95g/cm3
A.100kPa B.110kPa C.120kPa D.130kPa