Some senior two schools are talking about organic chemistry, and the third chapter of compulsory two is mixed with the second chapter of elective five, and benzene and its homologues are talked about;
Another part of the school is talking about the basic theory of chemistry. The first two chapters of elective four have been finished, and the first and second sections of chapter three of elective four are being talked about.
After reviewing the periodic table and periodic law of elements in the first round of senior three, it's time to talk about chemical theory, that is, it's time to review and take four courses!