— Do you know how to pronounce this word?

— Yes. I             in the dictionary yesterday. [ ]

A. looked it up

B. worked it out

C. gave it away

D. picked it up

警衔是区分人民警察( )、表明人民警察身份的称号、标志和国家给予人民警察的荣誉。

A．等级

B．职务

C．级别

D．工龄