I don't know where you are from. I come from Hefei. It's not good for elites to upgrade to undergraduate courses. Many of my classmates reported that they were all elites when they were promoted to undergraduate courses. Some of their teachers are very irresponsible. They will say that they have a lot of internal information before you sign up, and the topics predicted by their teachers before each exam are completely irrelevant. The probability is extremely small and the registration fee is extremely expensive! Anyway, I'm suggesting that you never go to the elite when you are promoted to undergraduate!