患者，45岁，近4d因装修出现发作性呼吸困难，可闻及哮鸣音，查体：BP 130/80mmHg，P100/min，双肺满布哮鸣音，该患者可能患有

A．急性左心衰竭

B．大叶性肺炎

C．支气管哮喘

D．糖尿病酮症酸中毒

E．胸膜炎

         for the free tickets, I would not have gone to the films so often.

A．If it is not

B．Were it not

C．Had it not been

D．Should it not be