1, the concept is different: being selected means being selected during the competition, and entering the exhibition means participating in the exhibition of the works, that is, the works have been selected in the exhibition venues.
2. Different influences: those who are selected may not be able to enter the venue, but can only participate in the review. Where there is no progress, they cannot publicize their works; Participating in the exhibition has a good influence on personal reputation, and you can better publicize your works.