Does the subject want to ask "the reason why Shenbo of Nankai University Business School can't read back"? Did not pass the preliminary examination and postgraduate examination.

1. Unqualified in the preliminary examination: the applicant fails to pass the preliminary examination of doctoral students in Nankai University Business School, that is, he is not eligible to enter the next round of evaluation.

2. Failed to pass the postgraduate examination: the applicant failed to pass the doctoral examination of Nankai University Business School, that is, it did not meet the admission criteria for doctoral students of Nankai University Business School.