—_______.  —thank you very much. I will. 

A．Congratulations!

B．Best wishes to you

C．Please say hello to your family.

D．What a good wish to your family!

美克尔憩室并发消化道出血的最主要原因是（）

A.憩室与周围肠管粘连

B.憩室炎

C.憩室内壁存在迷生组织

D.憩室内疝

E.憩室扭转