— Could I use a computer to get the latest news about the missing Malaysian Flight MH370?

— Sorry, sir. But we don't have any computer       here right now.

A．available

B．suitable

C．fashionable

D．valuable

确诊伤寒最可靠的依据是（）

A.粪便培养阳性

B.血培养阳性

C.发热、中毒症状、白细胞减少

D.胆汁培养阳性

E.肥达反应阳性