According to the relevant provisions of the Administrative Measures for Degree Awarding issued by the State Council, under normal circumstances, graduation thesis has to go through the blind review procedure. If the first blind test fails, you can apply for a blind test again, and the school may not refuse the students' application for a blind test for any other reason.
However, it should be noted that the specific regulations of different schools may be different. For detailed and accurate information, please consult the educational administration department or relevant person in charge of the school or department.