脓毒症最具特征性的临床表现是（）

A.寒战后高热

B.白细胞计数达（20～30）×10⁹/L以上

C.可出现感染性休克

D.转移性脓肿

E.病情重而病程短

— You ought to have called her yesterday .

— Yes , I know I ____ .

A．ought to

B．ought to have

C．ought have done

D．ought to have called