After you stay for four years, you will feel normal. The website of the Academic Affairs Office of Yangtze University is poor and famous. Just get used to it. But I can teach you a method, which may be faster: Baidu "Academic Affairs Office of Yangtze University" every time, and then click it. If you get stuck or the web page is not fully displayed, click it again, and you can enter it usually two or three times. I've tried many times. You can try. Choosing courses is the best!