A 1 is excellent, and A2 is excellent. In the results of the senior high school entrance examination, Chinese, mathematics, English, physics, chemistry, history, geography and biology are divided into five grades: ABCDE.

Among them, E is unqualified, so A2 can go to a good high school. A 1 is excellent, and A2 is excellent. The scores of Chinese, mathematics, English, physics, chemistry, history, geography and biology in the senior high school entrance examination are divided into five grades, ABCDE, among which E is unqualified, so A2 can go to a good high school.

Difference:

1A and 1B are merged into the first batch of undergraduate courses: national key undergraduate colleges such as "2 1 1 engineering" colleges and universities (or majors) approved by our province to participate in the first batch of admission.

2A is the second batch of undergraduate class A: ordinary undergraduate colleges and other approved colleges.

2B The second batch of undergraduate class B: independent colleges and private undergraduate colleges.

3A is the third batch of majors A: majors of central ministries and commissions, majors of provincial undergraduate colleges, majors of Guangdong provincial undergraduate colleges, majors of provincial colleges (including national demonstration vocational colleges or national key vocational colleges in other provinces), majors of teachers' majors of Guangdong provincial vocational colleges, majors of municipal vocational colleges that recruit students for the whole province (with the application of the school and the approval of the provincial recruitment office).

3B is the third batch of majors B: majors in independent colleges, majors in municipal colleges under the jurisdiction of Guangdong Province (including majors in local colleges that recruit students for this city), majors in higher vocational colleges outside the province, and majors in private higher vocational colleges inside and outside the province.