A.<100×106/L B.<10×106/L C.<500×106/L D.<500×106/L E.>500×106/L
A.<10g/L B.<20g/L C.<25g/L D.>25g/L E.>30g/L
A.0.1~0.3 B.0.2~0.3 C.0.3~0.4 D.0.5~0.7 E.0.7~0.8