—Let's go Dutch for this supper，OK?

—No，________ this time，as a reward for all your help.

A．it's my treat

B．it's up to you

C．let's talk about it

D．it doesn't matter

生于下列哪一部位的疔疮最易走黄（）

A.项后

B.四肢

C.颜面

D.少腹部

E.膻中