What questions should I ask when I go to Unicom for an interview and how to answer them? . I'm not very good at talking myself.

Look at the etiquette problems in the interview. Better wear a suit. The questions are usually about self-introduction, and then you will be asked about Unicom. In fact, the most important thing in an interview is not the content of your answer, but your attitude when you answer it. Be confident, articulate and don't be nervous. It's generally fine. By the way, I hope you can be my colleague.