单项选择题
A.2.499t B.0.324% C.13.042t D.15.072%
A.0.05吨 B.7.763吨 C.7.090吨 D.0.673吨
A.mg(MF×Cpi×Fa×CW) B.mg(MF×Fa×CW) C.Vi×ρ20×(MF×Fa×CW) D.Vi×ρ20×(MF×Cpi×Cti×Fa×CW)