A.≥2.0×1010 B.≥2.2×1010 C.≥4.0×1010 D.≥4.4×1010 E.≥5.0×1010
A.≥25g/L B.≥30g/L C.≥40g/L D.≥45g/L E.≥50g/L
A.0.40~0.50 B.0.50~0.60 C.0.50~0.65 D.0.55~0.65 E.0.55~0.70