What does it mean to write 4, 5 and 6 on the examinee's physical examination conclusion notice?

According to the "Guiding Opinions on Physical Examination for Enrollment of Ordinary Colleges and Universities" recently formulated by the Ministry of Education, the Ministry of Health and the China Disabled Persons' Federation, in the enrollment of ordinary colleges and universities in 2003, those suffering from the following diseases shall not be admitted to the relevant majors of the school:

1, majors with slight abnormal color vision (commonly known as weak color) that cannot be admitted: chemistry, chemical engineering and pharmacy, pharmacy, biological science, public security technology, geology, medicine and other majors with strict technical standards of color wavelength; Biological engineering, biomedical engineering, animal medicine, animal science, wildlife and nature reserve management, psychology, applied psychology, ecology, reconnaissance, special energy engineering and pyrotechnic technology, archaeology, marine science, marine technology, marine engineering, food science and engineering, light chemical industry, forest chemical industry, agronomy, horticulture, plant protection, tea science, forestry, horticulture, sericulture. Material chemistry, environmental engineering, polymer materials and engineering, process equipment and control engineering, preschool education, special education, physical education, sports training, sports human science, national traditional sports.

2. The majors that can't be admitted with abnormal color vision degree II (commonly known as color blindness) are fine arts, painting, art design, photography, animation, museum science, applied physics, astronomy, geographical science, applied meteorology, material physics, mineral processing engineering, resource exploration engineering, metallurgical engineering, inorganic nonmetallic material engineering, transportation, oil and gas storage and transportation engineering, etc. The specialty is the same as or similar to the above major.

3. Majors that can't accurately identify wires, keys, signal lights and geometric figures in any color of red, yellow, green, blue and purple can't be admitted: in addition to the two majors listed as mild color vision abnormality and color vision abnormality II, they also include economics, management science and engineering, business administration, public management, agricultural economic management and library and archival science. Those who can't accurately identify the numbers and letters in any color of red, yellow, green, blue and purple on the display can't be admitted to the computer science and technology major.

4. Anyone whose naked eye vision is less than 5.0 cannot be admitted to the major: flying technology, navigation technology, fire fighting engineering, criminal science and technology, and reconnaissance. Major: marine ship driving or above with the same or similar major (such as civil aviation air traffic control).

5. Anyone whose naked eye vision is less than 4.8 at a glance cannot be admitted to the major: marine engineering, sports training and national traditional sports. Major: cooking and nutrition, cooking technology, etc.

6, hepatitis B surface antigen carriers can not be admitted to the major: preschool education, navigation technology, flight technology, etc. Major: pastry technology, western food technology, cooking and nutrition, cooking technology, food science and engineering, etc.