At the same time, at the University of Technology, Mr. Zhu came to the president's office. The president took out an envelope and said, "Mr. Zhu, this is your reward from the superior."
Mr. Zhu wondered, what is the reward?
When he opened the envelope, he saw that there was twenty yuan in it. Mr. Zhu dared not accept the reward of unknown origin. He put down the envelope and asked, "What are you, headmaster?"
"It's your student, Liu Hai, who made an invention. This is a reward from the Ministry of Education." The headmaster took out another certificate.
Open the red certificate. It says, "Make great contributions, give special awards, educate..."