单项选择题
A.P1=ρgH-P0 B.P1=P0+ρgH C.P0=ρgH+P1 D.P1=ρgH+P0+大气压
A.P1=P0+ρgH B.P1=P0-ρgH C.P0=ρgH-P1 D.P1=ρgH