--Excuse me ,could you tell me where the post office is ?

---Ok.Between the two white buildings ___ the post office.

A．are lying

B．lie

C．lies

D．lay

溃疡型肠结核主要的消化道症状为

A．呕吐

B．消瘦

C．腹痛、腹泻、大便呈糊状

D．便秘

E．腹部肿块