How many books are there in Xinjiang, high school physics, high school mathematics, high school chemistry and high school biology? What are compulsory, what are optional, and what should be taken in the college entrance examination? Please specify the main points. There are books in senior high school physics, namely (B stands for compulsory, X stands for elective) B 1, B2, X3- 1, X3-2, X3-5,

There are five books on chemistry, namely B 1. B2 x2 . x3 . x4，

There are 1 1 books in mathematics, namely b1.b2.b3.b4.b5.x2-1,x2-2, x2-3, x4-2, x4-4 and x4-5.

You must take all the required courses. . . Elective courses should also be tested = =