It's good to follow the rules. I study theoretical knowledge on it, and I will tell you a lot of exam skills, and my grasp of knowledge points is also very accurate. I have read all the skills of these knowledge points and basically remembered them, then I went to do the problem, and then I passed four high marks in one subject. As for whether the tuition is expensive or not, it depends on whether you think it is worth it. Such a good platform can save you worry and effort, and I think the tuition is really not expensive.