Political history is an open-book exam, and the questions basically follow the form of the previous closed-book exam, and some open-ended questions are introduced appropriately. Therefore, if you don't review carefully and systematically, it is very likely that multiple-choice questions will be solved by turning over books, which will not only delay the examination time, but also make you unable to understand the book knowledge.

Teachers usually review some enumerated questions and questions in the test paper, which reduces the requirements for students, so that students don't have to spend a lot of time memorizing these contents, just remember the big words, but it also creates a misunderstanding for students: the exam questions are not difficult, so I don't need to spend so much time reviewing. With the deepening of open-book examination, open-ended questions should be introduced appropriately, and the proportion of such questions will gradually increase. From this perspective, the difficulty has increased.