It's a support for students.,It's also based on the efforts of readers (actually I'm too lazy to work) and will be updated every day for the next three days.。 As for how much to update...... Let's take a look at the recommended ticket. If you rush to the top 20, two cards a day, and the top 10 three cards a day. If the work is really breath-holding or you are really powerful...... Then maybe there will be no weekly changes in the future, but daily changes. Well, please pray that this book will be turned against the sky! By the way, it's a good idea to promote this book (laughs.)