1, the first batch of undergraduate students is referred to as a book, which is a national key university and a general university with good students, and is a key undergraduate;
2. The second batch of undergraduate courses is referred to as "two books". China's college entrance examination is attended by ordinary undergraduate colleges, and the enrollment accounts for about 78% of the total enrollment of the first and second batches of liberal arts, and science accounts for about 65%. Two are ordinary undergraduates;
3. The third batch of undergraduate courses, referred to as "three books" for short, are private colleges and universities established in recent years and belong to high-fee colleges and universities;
4. The college entrance examination in China is, in principle, a popular college with a large number of applicants from national key universities, an ordinary college and an undergraduate college upgraded from a junior college in recent years.