Police Detective

　　 "Hello everyone." Bai Song bowed first, and the students immediately became quiet.

　　 Rarely saw the teacher come up and bow, so Bai Song still caught everyone's attention.

　　 "I'm a policeman." Bai Song said astonishingly. The following aroused the exclamation of many students. After reading for so many years, it was the first time that someone came up and said that he was a policeman.

　　 "Maybe no one knows me. In fact, last class, I also sat down to listen to the lecture. Professor Tang may have seen that I didn't listen carefully in class. No, he called me to the podium..."

　　 Bai Song's cold humor still amused everyone, and the atmosphere improved a lot.

　　 At this time, someone whispered, someone knew him! Speaking of it, Bai Song can be regarded as a small blogger, especially the last golden case, which caused a certain amount of discussion among many students majoring in chemistry.

　　Because of the problem of corrosion of floor slabs by hydrofluoric acid, even professionals did not dare to play this in actual operation. As a result, there were so many follow-ups in the end, which is actually an interesting case.

　　 This one came and went, everyone passed on to each other, and many people knew that Bai Song was indeed a policeman in Tianhua City, and he was also a criminal policeman, which caused many people to gossip.

　　 may be poisoned by TV dramas. Many people default to being a special policeman who is better than a criminal policeman, and a criminal policeman than a policeman... In fact, all policemen are called policemen. So when everyone mentioned that this was a criminal police officer, they immediately became more interested.

　　 Before I started to talk about it, there was a good classroom effect. Bai Song didn't expect this, and the nervousness that came up just now was basically gone.

　　 Bai Song put his hands 20 centimeters in front of his stomach, spread his hands upwards, signaled to be quiet, and then preached: "Today, let's talk about the chemistry in life."

　　Even if everyone is a high-achieving student, Bai Song has prepared a full week of class, there are still a lot of things to talk about, especially for plastic surgery, beauty and medicine, which really arouses a lot of people's interest.

　　 The class lasted for twenty minutes, and Bai Song's cell phone rang.

　　Because of work, Bai Song never mute the phone. Bai Song took a look at it. It was Liu Shuyuan. He didn't know what was going on, so he could only apologize to his classmates, turn off the microphone, and answer the phone.

　　 "What's the matter?" Bai Song looked a little serious.

　　 "It was cloudy today. We sent someone to the hospital, but the third floor was closed." Liu Shuyuan said.

　　 "It's okay, it's normal that it's not open on a cloudy day." Bai Song lowered his voice, covering his mouth, and said.

　　 "Could it be because we were stunned?" Liu Shuyuan was a little worried.

　　 "No, if we are stunned, yesterday they wouldn't let the truck out soon after we got out." Bai Song said: "It is cloudy, if the lights on the 13th floor are too bright, it will be easy to spot outside."

　　 "That's good," Liu Shuyuan...

Sighed softly: "By the way, what are you doing? Why is the voice so small?"

　　 "Don't talk about those first, I'm teaching." Bai Song returned to his normal volume.

　　 "Lecture, oh oh oh, you said yesterday..."

　　 "Well, that's it, let me know if there are other developments in the case."

　　 Bai Song hung up Liu Shuyuan's phone after speaking.

　　 "The policeman looks so handsome when he is serious..."

　　 "Yeah, I suddenly changed my face, it's really handsome..."

　　...

　　 Although Bai Song didn't open the wheat, he could still hear the first few rows of the words he said in normal volume. It was generally known that Bai Song was temporarily setting up a case, which aroused everyone's gossip.

　　 And his ears are good. When he calms down, he can basically hear everything in the conversation below. Now listening to the conversation below, he can't help but blush.

　　 Snap slap...

　　 Someone applauded.

　　 Bai Song took a look, who else is not Wang Huadong?

　　 Applause This thing is contagious. Everyone applauded one after another, booing one after another, and let Bai Song tell the case.

　　 "I'm sorry, this case is secretly involved." Bai Song apologized to everyone, "Let's talk about the topic just now."

　　Talking about these, Bai Song is still very comfortable, maybe everyone is of high quality and it is not difficult for him, so he can answer a few questions, and the classroom atmosphere is gradually restored.

　　 When talking about hypodermic drugs, Bai Song suddenly froze as he talked about it. He was still a little unskilled, so he had to turn over his own notebook and then went on to talk about it.

　　 Old Tang asked Bai Song to talk for an hour, and Bai Song planned to talk for 45 minutes. In the end, he went to talk for 50 minutes and the effect was not bad.

　　Bai Song even saw a few people taking notes, which really made him feel full of accomplishment.

　　 "Thank you for listening to my communication. Chemistry is a magic trick. I hope that everyone can use the magic wand in their hands to become talents in various fields. Thank you." Bowed again, and Bai Matsushita went down the stage.

　　 Hearing applause again, Bai Song gave Ding Jianguo a please gesture and handed the podium to her.

　　 As a result, just as the young lady stood up, the applause of the whole class rang out like thunder. They have not yet come to the podium, they are countless times better than Baisong's effect!

　　 And ~www.novelmtl.com~ The man in the first row of assistants almost slapped his hands!

　　 Bai Song wanted to express a little gratitude for Wang Huadong’s failure, but he was speechless when he saw this.

　　 Is this brother?

　　 Ding Jianguo’s voice is very contagious. Today, I am not going to teach some profound chemistry classes, but to tell the master-level chemistry researchers present some experience about graduation thesis writing and experiments.

　　 This is practical and useful knowledge. Everyone here, as long as they have not graduated with a Ph.D., faces this problem. And the above said...

The one in the class, it is said that the doctoral dissertation has also been published in internationally renowned journals, and SI and the like get soft.

　　 But this is not very useful for Bai Song, he is definitely not good at studying these professional knowledge.

　　Manpower is exhausted. Even Einstein is inferior to ordinary people in many places.

　　 For example... his Chinese is not as good as anyone sitting there!

　　 Wang Huadong turned Bai Song, wrote a few words in the notebook, and handed it to Bai Song.

　　 "I saw you were taken aback when you were giving a lecture. Is there something wrong?"

　　 He still knows Bai Song very well. Every time Bai Song is stunned, it is often that the brain circuit is connected to something, and this often leads to the cracking of a certain case.

　　 "When have you been so observant?" Bai Song took a pen and wrote on the notebook.

　　 "Don't forget what I do." Wang Huadong went on to write: "What is it, is it convenient to say?"

　　 "Don't worry." Bai Song wrote: "I have an idea that needs to be verified. If it is true, then there should be an opportunity to solve this case."