A.1000mg/L或以内 B.1000-2000mg/L C.2000-3000mg/L D.3000-4000mg/L
A.1000mg/L B.2000mg/L C.3000mg/L D.4000mg/L E.5000mg/L
A.10min以内 B.10-30min C.30-60min D.60min及以上