Mr. Smith doesn't go to his usual club, ________ it is being decorated these days.

A．for

B．yet

C．so

D．or

大量呕血又不易控制的常见病为（）

A.肠道感染出血

B.食管静脉曲张破裂出血

C.应激性溃疡出血

D.十二指肠溃疡球部以下出血

E.胃癌出血