It's hard to say it's not difficult, because the library of Nanfinance and Economics will have valid documents for property inspection when it enters. But it was only a glimpse, so I taught the landlord a very tricky method, and I used this method to bring my classmates in. Just holding a thick card sleeve in his hand. Under normal circumstances, we enter the door with a meal card in our hand and go in at a glance. So as long as you put a booth in your hand, he doesn't have to check whether there is a meal card in your booth. Really can't. If you know someone in Nancai, you can borrow a meal card. I hope my clever idea is useful to you, haha. Besides, I wish you good luck in the exam.