Grandpa Liu Zichen took the Tian Jiajia sisters to the school's security office, and then said, "This is Teacher Yang's students, Tian Jiajia and Tian Wenwen, who have come to visit Teacher Yang." ”

At this time, there were two young men on duty in the security room, tall and large, sitting upright, and at first glance they were trained.

Hearing Liu Zichen's grandfather's words, a security guard nodded and said, "I know them, I've seen them on the Internet." ”

Another security guard immediately said, "Are you looking for Mr. Yang?" ”

Hearing the security guard's flower, Tian Wenwen on the side hurriedly stopped and said, "No, no, no, Mr. Yang doesn't know that we came to see him, and we want to surprise him." ”

"Oh, that's okay, I'll take you to Teacher Yang. The security guard said to Tian Wenwen.

Subsequently, led by the security guards, the group entered the campus.

Because it is summer vacation, many students have already taken vacation, so the campus seems to be very clean.

"Teacher Yang should be teaching the students in his class right now, let's just go to his class and find him. The security guard said to the others.

"Teacher Yang's class, isn't it good for us to disturb him? Dad Tian said.

"It's okay, Mr. Yang teaches students differently from other classes, Mr. Yang does not have a class or a class, and his students will study in the classroom all day as long as they want to study.

If you want to go to the toilet or go out to breathe, you can leave the classroom at any time, and you can leave on your own if you don't want to go to class. ”

"That's it, that's fine!"

As he spoke, the security guard had already left the back door of the school with a few people, and then entered the scope of Yang Xin's teaching laboratory.

Because the new teaching building has not yet been built, the classroom where Yang Xin teaches students is in the teaching laboratory building he built.

When a group of people came to a multimedia classroom converted from a large laboratory, Yang Xin was sitting in the middle of the classroom.

In the absence of others, his five-ring special effects have been quietly blessed to all students.

In the classroom, Yang Xin let them study on their own, and only students who don't know how to ask questions will come to ask him.

After the special effects of the five rings are full, anyone is a genius who will never forget, and his learning ability is off the charts, so he lectures to students will affect the students' learning progress.

Rather than that, it is better to sit among the students and bless them with an aura, and wait for the students to ask them if they have any questions that they really don't know.

"Teacher Yang!"

Just when Yang Xin was explaining the knowledge to individual students and adding halos to all students, a crisp shout suddenly sounded outside the classroom.

Yang Xin looked up and was stunned.

Hearing this, all the students in the classroom also looked at the door of the classroom.

"Teacher Yang, we're coming to see you!"

I saw that at the door of the classroom, two youthful girls were walking towards Yang Xin quickly.

"Jiajia, Wenwen, why are you here. Yang Xin stood up, a look of surprise on his face.

"We're here to see you during the summer vacation. Tian Jiajia said to Yang Xin with a smile.

And Tian Wenwen also stepped forward quickly and hugged Yang Xin.

"Teacher Yang, we miss you so much!"

"Hehe, the teacher misses you too. Yang Xin ran his hand across Tian Wenwen's cheek and straightened her loose hair.

Then he said with a smile: "You two, I haven't grown so much taller in a few years, and you have grown more beautiful." ”

"That's not it, the eighteenth year of the female college has changed. Tian Wenwen said with a smile.

As she spoke, she looked around, and then asked Yang Xin, "Are these all junior brothers and sisters?"

"Yes. ”

Yang Xin nodded, and seeing that everyone was looking at this side with curious eyes, he hurriedly introduced: "This is the teacher's former student, this is Tian Jiajia, this is Tian Wenwen, they are all your senior sisters." ”

"Hello senior sister!"

"Hello senior sister!"

I don't know who shouted, and the others shouted that the senior sister was good.

"Haha, hello junior brothers and sisters, my sister and I brought you a greeting gift. Tian Wenwen said with a smile.

Then he ran to the door, took a suitcase from his father, and opened it, which was filled with neat stacks of red red envelopes.

"This is a red envelope that my sister and I prepared for everyone, one per person. ”

"Thank you, Senior Sister, Senior Sister is magnificent. ”

Soon, the whole classroom became like a vegetable market.

Some students immediately opened the red envelope after receiving it, and inside was a stack of 100 yuan bills, which were 10 pieces, or 1,000 yuan.

"Although these red envelopes are not much, everyone can usually buy more snacks to eat. Tian Wenwen said to everyone.

"Thank you, Senior Sister, Senior Sister will always be young and beautiful. ”

"Thank you, senior sister, senior sister, I love you!"

"Hahaha!"

"Okay, your senior sister came to visit the teacher today, then today's study is here, let's go back to the dormitory to take a shower, and then change clothes, let's go to the cafeteria today to have dinner and wash the dust for the senior sister." Yang Xin said to all the students.

Then he instructed Zhang Yuheng and said, "Zhang Yuheng, you go and inform the classmates who are playing football in the playground and call them together." ”

"Okay!"

Next, all the students quickly left the classroom and went to the dormitory to take a shower and change clothes.

"Teacher Yang, long time no see. At this time, Tian Jiajia's father greeted Yang Xin and said.

"Mr. Tian looks a lot younger than before. Yang Xin said with a smile to Tian's father.

"It's all thanks to the blessings of our two daughters, and their mothers and I don't need to be exposed to the wind and sun, isn't this what it is? Father Tian said.

"You guys come here to play for a while this time, I'll give you a sleeping place first, and we'll go to dinner again." Yang Xin Chaotian's father said.

"Excuse me, Mr. Yang, Jiajia and the others are going to play here this summer. Father Tian said.

Under the leadership of Yang Xin, the group left the teaching laboratory building and then came to the school again.

Yang Xin arranged for Tian Jiajia and Tian Wenwen to go to the girls' dormitory.

Tian's father was arranged by him in the boys' dormitory.

The three of them were equipped with new quilts and daily necessities, and they would not be neglected.

"Teacher Yang, I'll go back first, there is still something to do at home. At this time, Liu Zichen's grandfather said to Yang Xin.

"The old man is not in a hurry to go back, he will go back after eating. Yang Xin retained.

"No, Liu Zichen and his grandmother are still in the city and haven't come back, and the pigs at home haven't been fed yet, so I have to go back to feed the pigs." ”

"That's okay!" Yang Xin said with a smile: "Your family earns a lot of money a year, why do you have to feed the pigs yourself?"

"When you're old, you have to find something to do for yourself, otherwise the old bones will be stiff, and the pork you feed yourself is delicious, I'll send you some during the New Year." Grandpa Liu Zichen said.

"Alright then, you can go back first. Yang Xin nodded.

In the afternoon, Yang Xin and all the students had dinner together in the cafeteria to pick up the wind and wash the dust for the sisters Tian Jiajia and Tian Wenwen.

In the evening, the three of them had time to talk alone.

"Teacher Yang, thank you!" Tian Jiajia said to Yang Xin.

"Thank you for what I did?" Yang Xin smiled.

"Thank you for teaching me the pharmacology knowledge of Chinese herbal medicine, otherwise I would not have been able to develop the technology of cultivating hematopoietic stem cells in vitro. Tian Jiajia said in a grateful tone.

"Hehe, no thanks, this is the inherited knowledge of the predecessors, if you can carry forward this knowledge in the future, the teacher will not teach you in vain. ”

"Teacher, I will, I'm about to graduate with a doctorate, and I spent 300 million to get a small laboratory in the capital last year. ”

Tian Jiajia said: "Teacher Yang, you don't know, I am now conquering HIV, I based on the pharmacological knowledge of more than 3,000 kinds of traditional Chinese medicine you taught me, simulated tens of thousands of drug groups, and thousands of experiments, and finally found the hope of curing AIDS, I believe that I will be able to produce results in a few years, and I will give the world a big surprise at that time." ”

Tian Jiajia looked excited.

"Very well, you really didn't disappoint me. Hearing Tian Jiajia's words, Yang Xin was very happy.

However, on the other side, Tian Wenwen said worriedly: "Teacher Yang, I'm quite worried about my sister." ”

"Why?"

"Because people living with HIV bring too much profit to the medical system, if my sister gets the curative medicine, I am worried that someone will be bad for my sister. ”

Tian Wenwen said: "Over the years, many times people have said that drugs to cure AIDS have been developed, but where are they? They are all inhibitory drugs that need to be taken for life, and I suspect that even if some companies develop curative drugs, they will not come up with them, because they will touch the interests of too many people." ”

"You think about this world too darkly!" Hearing Tian Wenwen's words, Tian Jiajia criticized her: "In our country, I don't have to worry about this at all, as long as I research it, the country will definitely be put into use immediately, I believe in our country." ”

"But what if someone secretly deals with you before you develop it, I don't want to watch the news one day and find out that you have been in a car accident or something. ”

Without waiting for Tian Jiajia to speak, Tian Wenwen continued: "Why is Mr. He's pharmaceutical company suppressed by so many people in foreign countries? Isn't it because it harms the interests of some big foreign conglomerates that such a good drug cannot even be sold at all in some countries?"

"Those European media say that Chinese rheumatoid arthritis drugs will kill people if they take them, why do they do this? Isn't it clear that the purpose is to suppress it? ”

"Do you know how profitable AIDS is in the medical industry? Although there are less than one million people in China, there are 40 million patients in the world! Every year, pharmaceutical companies all over the world have to make trillions of dollars in profits from these patients, and such a big profit is still long-term. If this is ruined by you, how many people will not hate you to death? How many people will not want to kill you?"

Hearing Tian Wenwen's flowers, Tian Jiajia retorted: "Then you can't stop doing it because you're afraid, right? As long as I don't go abroad, it's impossible for others to harm me." ”