Subject network is really rubbish. At first it said it needed integration. When the integral is enough, say that you need to store the value. After 50 minutes, it said it needed 100 to become a senior member. Are naked interests. As long as he can make money, he will do anything, which is against the spirit of educational ethics. Now fish begins to stink at the head has told the truth of this article, and there are thousands of Qian Qian. Therefore, we should always keep an eye on it and be careful not to be cheated. If you wait to be cheated every time, you will lose a lot.