202 km Shanghai—Hangzhou high-speed railway, with       deign speed of 350 km per hour, began its operation on Oct 26,2010.

A．The; a

B．The; the

C．A; a

D．A; the

伤寒患者在病程第2～3周体温逐渐下降，尚未达到正常温度，体温又再次升高，持续5～7天后才正常，血培养阳性。其诊断是

A．伤寒复发

B．伤寒再燃

C．并发肠出血

D．并发肠穿孔

E．中毒性肝炎