Second, it is best to take both elective courses of 1 required by the college entrance examination outline, so that you can compare which subject you like better, and once you like which subject, you will prefer which one, and then get better grades.
Third, although the current college entrance examination policy has many drawbacks, based on the national conditions of China, although the policy has changed over the years, the overall trend has remained basically unchanged. As long as you learn the textbook knowledge well, don't worry about it.