— You haven't said a word about my new coat, Brenda. Do you like it?

— I'm sorry I ____ anything about it sooner, I certainly think it's pretty on you. [ ]

A. wasn't saying

B. don't say

C. won't say

D. didn't say

患儿女性，产后一周出现腹胀、瞌睡并出现轻度黄疸，伴呕吐胆汁样物，腹泻黏液血便。查体：腹胀明显，肠鸣音弱。诊断考虑：新生儿急性坏死性小肠炎。

首先应做的检查是（）

A.X线腹部平片

B.血常规化验

C.腹部B超

D.腹腔穿刺

E.膜部CT