Some middle school students will choose to repeat one year before taking the senior high school entrance examination; More candidates who have not crossed the line may enter various secondary vocational schools focusing on technical learning. Such schools include: vocational high schools, secondary vocational and technical schools and secondary technical schools. This kind of school is recognized by the state as a high school with the same level. Students studying in these three types of schools are collectively referred to as students from three schools. The students in the three schools are technical training schools which are different from ordinary high schools and mainly study cultural knowledge. The definition of "three schools" is to cultivate a group of high-quality high-tech talents on the basis of nine-year compulsory education, and their students have the skills to be competent after graduation. Ordinary senior high schools and three schools (vocational high schools, technical secondary schools and technical secondary schools) * * * form a complete education system, providing different educational choices for junior high school graduates. Students in secondary vocational schools mainly study vocational skills, but also learn Chinese, mathematics, foreign languages and other cultural knowledge. The academic system is usually 2.5 years of school study and 0.5 years of social practice. But because the students in the three schools usually focus on skill training, supplemented by cultural training. Therefore, in the way of further education, we suggest that candidates from three colleges and universities mainly take the single-recruit examination in March, and it is a good choice to enter the university through single-recruit.