— I hear that Tony was seriously injured in an accident the other day. 

— Yes, _____ news came as _____ shock (震惊) to all of us. [ ]

A. the; the

B. a; 不填

C. the; a

D. 不填; a

扩张型心肌病的最主要特征是（）

A.附壁血栓

B.心肌舒张期泵功能衰

C.心肌收缩期泵功能衰竭

D.呼吸困难

E.心房纤颤