"The thermohaline circulation is an important meridional circulation system to maintain the energy balance of the earth's climate system, and it ......"

A deep, old, slightly faint voice of a male teacher came through the back door of the lecture hall.

This post-disaster ecological and geographical environment reconstruction course is a very popular elective course of the First University of Southern United Highlands.

The professor is nearly seventy years old, an age that is destined to be impossible to embarrass students.

Chi Xiaoxian slowly pushed open the back door of the large classroom, holding the paper paper at the end of the course in his hand, looking for the last row of empty seats to sit in.

However, he miscalculated.

The last four rows were all filled, and there was not a single empty seat left in the heads of the blackened group. Probably because I have to hand in my final homework, it's rare to have a full class.

Chi Xiaoxian covered his face with his papers, and tiptoed to an empty seat in the middle of the classroom.

After sitting down silently, Chi Xiaoxian took down the paper that blocked his face and breathed a sigh of relief.

Fortunately, it was an empty seat on the side of the corridor, and if it was the middle one, he would have to let the people on the side stand up one by one and let him in—it was really a spectacular social death.

As soon as he sat down, he felt that there was something wrong with the atmosphere around him, to be precise, there was a very discordant magnetic field.

The discordant magnetic field came from his neighbor's seat.

The boy has an extremely superior side face, like a well-designed silhouette of a character in a poster. He was typing, and the light of the computer screen was shining in his focused eyes, shining with Qingyue.

Chi Xiaoxian glanced over, and there were dense words on the computer.

Actually taking class notes?

In the big water class that doesn't have to take the final exam and ends the class after handing in the paper, take class notes?!

Chi Xiaoxian couldn't help but gasp.

After sitting down, he played for a while before remembering the real purpose of the class - to hand in homework.

He looked around, the distance between the front and back rows of the podium was very long, and the easiest way to do this was to ask the boy next to him.

The boy had just finished drinking water, and Chi Xiaoxian disturbed him: "Hello classmates, who will I give the homework for this course?" ”

The boy's hand paused slightly, turned his head to look at him for a while, and then said lightly: "Teaching assistant." ”

"Who's the teaching assistant?"

"You don't know who the TA is?" The boy raised his eyebrows imperceptibly, "This is the third time I've handed in my homework." ”

“？”

"I've already handed in two assignments for this class?" Chi Xiaoxian couldn't believe it, "Didn't you say that you don't have your usual homework?" ”

When he chose the course, he heard the seniors say that this course only uses a small paper at the end of the semester, and he usually has nothing to do, and it is very relaxed.

"The reform of the education system, which was just added this semester, didn't you look at the system?" The boy saw something from Chi Xiaoxian's somewhat cracked expression, but he still had a faint tone. I can't hear a mockery, it's just a simple question.

Chi Xiaoxian froze for two seconds before quickly clicking on his mobile phone to log in to the education system. He had only checked the final tasks column before, and he didn't think about the usual tasks in this course at all.

He didn't miss much of his usual homework in other classes, because he took it with his roommate Zhang Wensheng. As soon as there is a task, Zhang Wensheng will remind him like an old mother that he doesn't need to read those messy course group messages in person. He even blocked all the news.

But Zhang Wensheng didn't choose this fire elective course......

The network in the big classroom is very poor, and Chi Xiaoxian couldn't click on the system for a while.

"How many points do those two assignments usually count?" He struggled to ask the boy, trying to save himself.

"There are thirty points in total, and the remaining seventy points are final papers." The boy said.

"Thirty points...... If I can get 60 points for my paper, then I still have a chance to pass. Chi Xiaoxian comforted himself optimistically, "It's okay, it's okay." ”

"That's right." He suddenly remembered, "Who is the teaching assistant?" I'll hand in my paper first. ”

"Me." The boy said lightly.

"Huh?!"

After handing in the paper, Chi Xiaoxian sat in his seat, and for a while he didn't know whether he should take out his mobile phone to play again.

The boy didn't say anything, took his paper, simply checked his name and student number, and was about to put it in the belly of the table, when he suddenly felt that as a teaching assistant, he needed to remind the ignorant classmate next to him.

"Have you written all the words?" The boy spoke.

"Not less than five thousand?" Chi Xiaoxian asked with some confusion, "I'm not mistaken." ”

"How much did you write?"

"Five thousand and one." Chi Xiaoxian said sincerely.

The boy stopped talking, only frowning, as if he was considering what to say.

"What's wrong? Am I mistaken? Chi Xiaoxian panicked.

You can't even remember the wrong word count of your final paper, right?! He remembered reading it several times at the time, and he specially finished writing his thesis with 5,000 in his hand......

The boy staggered and took out two books from his desk, and Chi Xiaoxian noticed that there was a large stack of papers in his desk.

The papers that were taken out by the boys, looking at the stacks high, were actually only two, and they were as thick as books.

Chi Xiaoxian flipped through and found that they were not only thick, but also very exquisitely bound, and the logo of the school emblem of the First Southern University on the cover was still colorful.

In contrast, the paper he had just handed in was so thin that it was only a few pages, and the staples were so empty that they wobbled a little......

Chi Xiao retracted his hand idly.

Gan, these people are really getting more and more involved for grades.

There is no word count for paper papers, and the professor will not know if he has actually written 5,000 words, only that he is the thinnest of all people......

His thin paper has no sincerity at first glance!

At this point, Chi Xiaoxian could only save face for himself, and said: "Reverse, start with me." ”

The boy glanced at him and didn't comment.

The bell for the end of class finally rang, and Chi Xiaoxian breathed a sigh of relief. There was only one lunch left before he went back to the dormitory to lie down, but the professor was still talking about his thoughts on the end of the class.

"You may be the last class I bring, I was already retired, and I was invited back to class by the school, I didn't expect so many people to come to my class, I-"

He was chattering and suddenly became dumbfounded, as if the power had been cut off. Then, a strange sound welled up in his throat, gurgling, like bubbling cement.

"Teacher—" A student was the first to stand up, rushed to the podium and supported the professor.

He was about to inquire about the situation, but saw the old professor's eyes suddenly widen.

Those eyes were covered with a layer of gray gloom, strange and terrifying.

The classmate was so frightened that he took two steps back.

The students in the front row looked at each other, unable to tell what was going on for a moment.

Just when the classmates on the stage were at a loss, the professor bit him in the face.

"Ahh

Blood splattered, almost half of the boy's face was gnawed off, and his white shirt was dyed a large patch of red. He covered his bloody face, stumbled under the podium, and before he had taken two steps, as if he had lost his pain, he lowered his hand covering his face, and let half of the flesh hang on his face and sway.

Then he raised his eyes—lifeless, grayish-white gloom. The pupils are almost smaller than normal, and they look like indescribable ghosts.

Screams rang out in the classroom, making eardrums buzz.

The students in the last row bounced straight out of their seats and rushed to the back door of the classroom. Everyone flocked to the hallway, desperately squeezing in an attempt to escape from this strange place.

The professor and the boy who had been bitten at first staggered to catch up.

Suddenly, the sounds of crying and mourning and screaming were all in one.

Chi Xiaoxian also mixed in the crowd and squeezed out. However, the classroom is too big, and the door is too narrow to accommodate so many people to pass through at the same time, and everyone is almost blocked at the back door, and no one can get out for a while.

Someone was squeezed and fell to the ground, but the person behind him was still squeezing forward, stepping on his hand and stepping on his back.

"You can jump out of the window!" A cold loud voice sounded.

When Chi Xiaoxian turned around, he found that it was the little teaching assistant. The other party was not far behind him, and there were not a few people separated from him.

The windows of the lecture hall are located differently from ordinary classrooms, and are almost as high as a skylight. The teaching assistant boy stepped on the table, kicked his feet, jumped up to the window like a swallow, and unlocked the window.

Chi Xiaoxian was envious - his motor cells were not enough to support him to complete such a difficult action.

Just as he was thinking, someone behind him slammed into him and slammed his waist into the corner of the table.

Chi Xiaoxian arched his back and gasped in pain, but the crowd behind him was still pushing. He didn't stand still and almost fell.

"Get on the table!" The assistant boy noticed Chi Xiaoxian and shouted at him.

As soon as Chi Xiaoxian climbed onto the table, the accident happened again.

A student who had been bitten climbed onto the table at some point, his limbs writhing strangely, leaving crooked blood marks on the crawling table.

"Jump up!"

"It's too tall for me to climb up."

The assistant boy jumped down from the window edge with a thud, and half-crouched down to signal Chi Xiaoxian to step on his shoulder.

Chi Xiaoxian didn't have time to thank him, stepped on his shoulders and grabbed the window with both hands. The boy took him up with him, and after watching Chi Xiaoxian climb up, he jumped easily and climbed the window again.

The two of them jumped down from the high window, and this height made Chi Xiaoxian's ankles numb for two seconds, but before he could catch his breath, he saw a large wave of black people running frantically from the classroom at the end of the corridor to the staircase, shaking the floor.

Apparently this is not the only classroom that is experiencing anomalies.

"Emergency! Emergency! Please return to the dormitory immediately and do not go out for the time being! Emergency! Emergency—"

The radio suddenly rang out, and it was extremely piercing. Screams, footsteps, and shouts filled the hallway, like a pot of porridge.

Fortunately, their classroom was on the second floor, and Chi Xiaoxian and the assistant boy rushed down the floor almost without stopping and ran out of the teaching building smoothly.

There was also chaos in the square, everyone was rushing in the direction of the dormitory building, and a large number of mobility devices that had been placed next to the teaching building were all borrowed.

Chi Xiaoxian turned his head, but found that the teaching assistant was frowning, a little hesitant.

"Aren't you leaving?" Chi Xiaoxian said in a hurry. After this twist and turn, he almost regarded the other party as a comrade-in-arms.

"I need to go to the biology building." The boy said something that he didn't expect.

"But it's dangerous now, and the radio told us to go back to the dormitory immediately." Chi Xiaoxian kindly persuaded.

"Today's experimental data has not been counted yet."

Hurriedly dropped this sentence, and he ran in the opposite direction.

Looking at his figure without looking back, Chi Xiaoxian muttered, "Crazy." ”

At this time, who can take care of this kind of volume king, Chi Xiaoxian plunged into the crowd of people returning to the dormitory.