Dalian maritime re-examination ratio is 20% to 30%. Dalian Maritime University is expected to admit about 20%~30% students to participate in the postgraduate re-examination, that is, re-examination 12, and the last two students will be eliminated. Dalian Maritime University is close to other universities of the same grade in the proportion of admission for postgraduate entrance examination and re-examination, and all of them take the form of difference re-examination, so some people will be eliminated.