Candidates without a high school diploma are not uncommon in the annual joint exam. Through self-study or other means, such as learning in the process of labor, these candidates have basically obtained the knowledge and cultural level of high school in terms of knowledge content and knowledge structure. High school culture not only refers to ordinary high schools, but also includes the requirements of secondary vocational and technical education (technical secondary schools, vocational high schools and technical schools), which should be considered comprehensively in the examination syllabus. Therefore, as long as the actual educational level of candidates reaches the educational level of graduating from high school, they can apply for the exam.