单项选择题

A.C1=0.10mol/LV1=1Lρ2=40g/L
B.C2=0.10mol/LV2=1Lρ1=40g/L
C.C1=0.10mol/LV2=1Lρ2=40g/L
D.C2=0.10mol/LV1=1Lρ1=40g/L