—I've heard that another brand of milk powder has been banned.

—It's a shame that some companies lack the sense of social responsibility and______.  [ ]

A. conscience  

B. command  

C. consideration  

D. consequence

患者，男，45岁。突感胸骨后疼痛来院就诊。胸部CT平扫图像如下图：

本例应诊断为（）

A.胸主动脉瘤

B.主动脉壁内血肿

C.胸主动脉夹层

D.胸主动脉破裂

E.主动脉炎