If history is required, Neo-Confucianism in Song and Ming Dynasties is difficult to understand, mainly because it is difficult to distinguish the views of thinkers. There is also the Renaissance Enlightenment, which is easier to recite than to do.

In terms of geography, compulsory three mainly focuses on regional geography, but compulsory three is good, focusing on regional, agricultural and commercial location factors, regional development stages, west-to-east gas transmission, south-to-north water transfer, west-to-east electricity transmission and industrial transfer. See/question/193088184.html.

Politics required course 3 is cultural history, which is generally good. See /question/336833739.html for details.