患者女，25岁，体检时行胸部X线片：左后上纵隔近胸廓入口处有一3cm×3cm的类圆形

— How I wish I had watched the football match last night.

— ________, today's examination would be a total disaster. [ ]

A. When necessary  

B. If so

C. If possible  

D. So what

—Please tell Nana she has won the first prize in the teaching skill contest in April.

—_________! She never did so well before.

A．Congratulations

B．Good luck

C．That’s right

D．What a good surprise

引起咯血最常见的支气管.肺部疾病是（）

A.肺梗死

B.肺寄生虫病

C.支气管扩张

D.良性支气管肿瘤

E.支气管非特异性炎症

对出台给予拾金不昧者以奖励的法案，你怎么看待？

水冷壁单根管向炉内突出的外鼓值超过（）者，应拉回复位和结合密封面的形式来选用。