— No, I'm afraid he isn't in. This is his secretary speaking. Can I help you?

— _____.[ ]

A. Oh, you will.

B. Oh, that's a pity.

C. I should think so.

D. Well, I look forward to hearing from you.

食管穿孔的影像学征象包括（）。

A.尖刺状突

B.龛影形成

C.管扭曲成角

D.憩室样变

E.纵隔炎