______ is the power of TV that it can make a person suddenly famous.[ ]

A. Such  

B. This

C. That  

D. So

呕血最常见的疾病是（）。

A.胃底及食管静脉曲张破裂

B.慢性胃炎

C.消化性溃疡

D.急性胃黏膜病变

E.肠憩室病