However, Qiao Ze could see that it was somewhat difficult for the professor to leave directly.
Quite a few students were already holding their exercise books and preparing to stop the professor on the stage.
Actually, under the suggestion of Edward Witten and Dou Dou, the School of Mathematics, including the Qiao Class, adopted several excellent systems from abroad, such as office hours.
In brief, it means that professors from the School of Mathematics must spend half a day each week in their office, ensuring that students can take this time to consult professors on issues they don't understand in recent courses.
But apparently, the students of the Qiao Class prefer surrounding the professor after class, getting a clear answer before letting them go. At most, it just delays the professor's lunch, but the Xilin University of Technology's small cafeteria stays open in the afternoon, so no one goes hungry.
