It seems to be a paper written around 2003, and the effect is not very good. Later, the open book was cancelled and the closed book exam was used instead. Open-book examination is very difficult, the topic is biased, it is difficult to find a clear answer from the book, and it is a waste of time. A good back is king. The history and politics of junior high school are not difficult, and the topic of closing the book is also very simple. As long as you have the overall framework of the book in mind, it will be much easier to do the problem.