Both the real title circle and the cowhide roll are good. "True topic circle" and "cowhide roll" are two common reference materials, which one is better depends on personal study habits and needs. "True topic circle" refers to the materials that sort out and summarize the true questions over the years, usually including examination papers of various subjects and corresponding answer analysis. It can help candidates to be familiar with the test questions, understand the test difficulty and trend, and improve their problem-solving ability and skills through real problem analysis. The real question circle can be used as an important auxiliary material to help candidates improve their ability to take exams. "Cowhide Roll" is a kind of note material to sort out and summarize the main points of subject knowledge. Generally, it is written according to the chapters or knowledge points of the textbook, with detailed content and own summary and understanding. Cowhide roll focuses on combing and summarizing knowledge points, which is beneficial for candidates to master and memorize knowledge points and is suitable for review and consolidation. To choose which is better, you can choose according to your own learning needs and preferences. If you want to know more about the test questions and trends and improve your problem-solving ability, you can consider using the real question circle. If you want to review and master the main points of knowledge more systematically, you can choose to use cowhide rolls. Of course, you can also combine the two and make a choice according to your own situation. It is important to keep learning and reviewing in the process of preparing for the exam, and combine other materials and methods suitable for you.