I know that if I start watching a soap opera, I immediately become hopelessly _____.

A．addicted

B．awful

C．delighted

D．talented

最常见的咯血原因是（）

A.支气管扩张

B.慢性支气管炎

C.肺结核

D.支气管肺癌

E.风湿性心脏病二尖瓣狭窄