The list of blind evaluation is subject to the school's issuance. According to the supplementary provisions of the Sampling Method for Doctoral and Master's Dissertations of Southwest Petroleum University (No.20191), the degree evaluation sub-committees of various colleges focus on checking several dissertations specified in the documents before convening; According to the principle of full coverage of degree authorization points, the rest of the dissertation is randomly selected in proportion, and the proportion of sampling is not less than 20% for doctors and not less than 10% for masters. The verification results are identified as "dissertations with suspected problems", which need to be rectified and qualified according to regulations, and then the defense is reorganized, and then submitted to the sub-committee for discussion after the defense is passed.