—Mrs.Smith didn't come to the meeting, _____?

—No, _____.She was ill.[ ]

A. did he; he didn't            

B. did he; he did

C. didn't she; she didn't        

D. did she; she didn't

伤寒确诊的依据是（）

A.血培养

B.粪便培养

C.尿培养

D.临床表现

E.肥达反应