Answer: (1) The enrollment system in colleges and universities restricts the direction and content of basic education to some extent;

(2) The personal rate of return of higher education will affect students' enthusiasm and motivation for further study in the basic education stage;

(3) The teachers provided by higher education for basic education directly affect the teaching quality and level of basic education;

(4) The ideas and ways of thinking advocated by higher education and their adaptation to the changing trend of social development also affect the changes of ideas and ways of thinking instilled in basic education to some extent;

(5) The scale and number of institutions of higher learning affect the degree of competition in basic education.