Personally, I study science. I think your present situation is normal. High school physical chemistry is above 90, especially physics, which is rarely endless. The key point is your mastery of book knowledge, understanding and evolution of formulas in books. Physics doesn't need to expect high marks, just normal levels. On the contrary, chemistry is not difficult to tell the truth. Just remember all the chemical equations in the book and memorize the properties of each element. Not difficult. Chemistry is far less changeable than physics, but biology seems not difficult. In fact, it is still a memory theme. The key points and difficulties are all in books. It is not difficult to understand everything in the book.

English is not good, the bird that can only get up early gets the worm. Chinese is so worry-free, no one dares to say that math is ok.

If you apply for science, the college entrance examination can choose a wider range. Some subjects are liberal arts, but only science students can apply. The suggestion is to choose the right course. No, you can change the text in senior three. If you want to change it back, basically every course will be changed.