–So you didn’t say “Hi” to your partner when you saw her?

–Well,I stopped and smiled at her, but she         me and walked on with her head high.

A．refused

B．denied

C．missed

D．ignored

彩色多普勒在腹部的应用主要是用于（）

A.检测正常及异常血流

B.对血管及其他管道结构作鉴别

C.检测肿瘤血管血流

D.可提高所有腹部疾病的超声诊断准确性