Chapter 403: Agricultural Science Popularization Listening to Li Shen’s words, Professor Yuan fell into deep thought. The promotional method used for the Academic Subject Live Stream had given him a bit of an epiphany. Marketing was all the same in principle. If one targeted the parents of students directly instead of mindlessly handing out flyers on the street, the results would be vastly different. Even if random street promotion achieved some results and attracted a group of people to…