Compulsory math courses 1, 2, 3, 4, 5 and elective courses 2- 1, 2-2, 2-3 are compulsory contents of science; Compulsory mathematics courses 1, 2, 3, 4, 5 and elective courses 1- 1, 1-2 are compulsory contents of liberal arts; Elective courses 4- 1, 4-4 and 4-5 are all contents of arts and sciences (but only three books were selected in the college entrance examination, so only one of these three books can be learned). Biology is compulsory, 1, 2, 3 is compulsory, and 1, 3 is optional (only one of these two books is selected in the college entrance examination). I hope I can solve your problem and wish you a smooth college entrance examination!