— I don't think this TV set is of good quality. Can you replace it with a new one?

— _____. But I have to talk to my manager first. [ ]

A. I'm sorry

B. No way

C. No problem

D. That's a question

男，58岁，进食梗阻感，结合图像，最可能的诊断为()

A．正常食管

B．食管静脉曲张

C．食管平滑肌瘤

D．食管上段癌

E．食管下段癌