According to Sohu. Com, the "double-blind system" adopted in the second interview is that students draw lots to decide the examination room, and the tutor draws lots to decide which examination room to be in, thus avoiding the problem of unfair competition. The student doesn't know who the interview tutor is, and the tutor doesn't know who the student he interviewed is.
Postgraduate re-examination is an important part of the postgraduate examination system, that is, the second examination organized by the applicant institution after passing the postgraduate entrance examination (initial examination).