近端空肠内疝形成

A．呕吐物为食物，无胆汁

B．呕吐物为胆汁，无食物

C．呕吐物既有胆汁，又有食物

D．呕吐物呈酸臭味，有宿食

E．无呕吐

—How do you spell watch?

—_____.[ ]

A. W-A-T-C-H

B. No, it's not a watch

C. It's my watch

D. Yes it's watch