单项选择题

正常人血渗透压一般多在下列哪项范围内( )

A.275~3050sm/kgH2O
B.320~4000sm/kgH2O
C.400~6000sm/kgH2O
D.600~10000sm/kgH2O
E.1000~20000sm/kgH2O