Two copies generally refer to undergraduate advance, and undergraduate advance refers to earlier than ordinary batches. Generally, after the college entrance examination, batch registration is made in advance. If there is no early admission, it will not affect the admission of other batches.

The schools and majors admitted in advance are mainly military academies, small languages, political diplomacy, security and national defense, including some ordinary colleges, military academies, public security colleges, judicial colleges and civil aviation and air force recruitment colleges. Advance approval mainly includes: art, sports, military, public security, armed police and others (reconnaissance, public security, law, etc. ).

Schools generally need to test candidates before enrolling in batches in advance. Art candidates take the art professional exam. Physical education major candidates take an additional test in sports events. Military schools need military inspection, political examination and interview. Recruitment requires interviews and physical examinations. Public security colleges need interview, political examination and physical fitness test. The enrollment of the Institute of Electronic Science and Technology needs political review and interview.

Guangdong Ocean University Library:

The museum has a total construction area of 25,604 square meters, of which the main campus is 20,087 square meters. The main campus has 18 functional areas such as literature borrowing, literature reading, electronic reading, special reading and leisure reading, all of which are in a large studio structure of 640 square meters and have more than 3,000 reading seats.

The high-speed LAN uses 1000M optical fiber to connect the computer room of the school network center, and there are more than 600 network ports in three campuses. It has systems such as CD-ROM resource management, book purchase duplicate checking, book recommendation and purchase, and electronic reading room management. Using the management software of Shenzhen University Library, a series of networked computer management such as purchasing, cataloging, circulation, periodical management and collection retrieval have been realized.

There are 2.2 million books in the collection, 2/kloc-0 databases in Chinese and foreign languages, 4 self-built paper literature topics and more than 3,000 newspapers and periodicals in Chinese and foreign languages. Computer management system, monitoring system, fire alarm system and background music system integrate book collection, lending service and utilization of network information resources, and construct four highly modern functional systems: service, teaching, business and security.