Not difficult. According to the information released by official website, Guizhou University, in view of the scores of postgraduate courses in the School of Computer Science and Technology, your school's scores are relatively low, and the re-examination is quite satisfactory, and the overall cost performance is good, so the re-examination is not difficult. Re-examination for postgraduate entrance examination is the last procedure, which is a further investigation of candidates' professional level and practical ability on the basis of passing the initial examination, and it is related to whether they can finally be selected as graduate students.