A.5.0%B.4.9%C.4.8%D.5.1%
A.5% B.10% C.20% D.30%
A.7d B.10d C.5d D.30d
A.72h±30min B.72h±45min C.72h±1h D.72h±3h
A.多，小 B.多，大 C.少，大 D.多，不变
