填空題
單項(xiàng)選擇題
A.1.0m B.1.2m C.1.5m D.1.8m
A.1m2 B.1.2m2 C.1.25m2 D.1.44m2
A.19.5MPa B.21.5MPa C.23.5MPa D.27.5MPa
A.250kg/m3 B.260kg/m3 C.270kg/m3 D.280kg/m3
A.50kg/m B.51kg/m C.52kg/m D.53kg/m
A.270kg/m3 B.280kg/m3 C.290kg/m3 D.300kg/m3
A.14.5% B.15.5% C.16.5% D.17.5%
A.145kPa B.155kPa C.165kPa D.175kPa
A.1.50 B.1.58 C.1.70 D.1.80
A.2.0m B.2.3m C.2.5m D.2.6m