"Climb for me!" Ru Mengwan puffed out her cheeks and ran angrily after Xia Chu, who was full of black lines at the beginning of Xia, what is this?

However, with the enhancement of Xia Chu's physique, his endurance has also increased a lot, and Xia Chu felt not tired at all when he ran, but he quickly made Ru Mengwan tired and panting.

"You're going to have to exercise more, little sister. At the beginning of the summer, the man and animal smiled harmlessly at her, "I'll see you later." ”

Xia Chu is very satisfied and happy today, and he received two points of popularity on Ru Mengwan at once, and he made a lot of money, okay, maybe one day in the future, there will be a task about Ru Mengwan that will find him.

As soon as I returned to the classroom, the students all chattered around, and Xia Chu didn't explain anything, just entered the classroom and lay on the ground to do push-ups, which made everyone stunned, the last second was still pushing and shoving, and the next second why did you start exercising?

In the end, the students still didn't ask anything, in fact, anyone with a discerning eye could see a rough idea, but most of them were just curious.

"Jingle Bell ~ Jingle Bell ~"

When the class bell rang, the students all returned to their seats, and Xia Chu sat in his seat and opened a book without thinking.

This is a book of weapons manufacturing, which contains many cold weapons invented in the 90s in war-torn countries, and some of them also indicate the advantages and disadvantages and simple production methods.

Xia Chu borrowed this book just to find an opportunity to create a really handy weapon in the future, and a good weapon is often the key to winning a duel.

He fixed his gaze on a spider blade, this spider blade is composed of four sharp long blades of the same size, their knives are facing inward, the blades are facing outward, placed in four different directions, and the tips of their four knives are all at one point, whether it is horizontal or vertical chopping, or straight stabbing, they are all very sensitive, full of lethality, but its weakness is that the manufacturing process is extremely long, too material-intensive, it is very bulky, and it is not easy to carry, but if it can polish each blade of its blade to extremely thin, it will be a very interesting cold weapon。

Xia Chu took a brief look at its production process, and to be honest, Xia Chu really wants to make such a weapon now, but the process is very complicated, so he can only wait for when he has the opportunity to make it again in the future, and it is too difficult to make it.

Turning a few pages, Xia Chu quickly browsed, even if he was reading a book, Xia Chu would not waste time on meaningless things.

When he turned the page, Xia Chu noticed a weapon in the lower left corner of a certain page, this weapon felt familiar to him, as if he had seen it somewhere.

The cross sword, the staggered combination of two long swords, the shot is often unexpected, it has no real direction, as long as it is split, it is double damage, and its existence is suitable for people with a certain arm strength.

It's easy to make, the materials are average, the lethality is OK, it's a good weapon, but when I saw the book at the beginning of the summer, I was stunned for a long time, and you told me that there was no specific manufacturing method for such a simple thing?

At the beginning of the summer, he couldn't help others, but he couldn't help a book, so he immediately took out an A4 piece of paper and began to construct drawings based on the principles of other weapons.

In the process of drawing, Xia Chu really encountered a technical problem, the two swords do have a way to intersperse and merge, but there is a problem, how to fix it?

It's a question worth pondering, whether it's tied with rope or glued, it doesn't seem very reliable, but if you want to burn it on the handle, how to fix it is a problem, and the handle must be metal.

Natsuchu frowned and pondered, he memorized the concept of this weapon in his mind, and continued to flip through the books.

If he wants to go out to explore at this stage, he doesn't necessarily need a very powerful weapon, and at the beginning of the summer, his eyes caught a glimpse of a very ordinary weapon, this weapon is so ordinary that it can no longer be used as a weapon, it can also be used as a tool.

The axe, the first weapon made in the history of human existence, is not only versatile, but also simple to manufacture and easy to use, and at the same time, it can also use its own weight inertia to cause greater attack power.

At the beginning of summer, the eyes lit up, and it was it.

The axe is not difficult to manufacture, and even if two holes are made in the axe surface and fastened with rope, it is very strong and generally not damaged.

Xia Chu looked at the axe in the book, his thoughts drifted back to his previous life, a few years after the outbreak of the virus, many strong people were born, and the deepest image of Xia Chu was a man with a black axe, he not only has his own combat power, but also has an army built by himself, not only killing countless enemies, but also almost destroying the source of the virus, which can be described as a shining star in mankind.

However, in a large war in which he commanded the whole situation, he was suddenly shrouded in blood mist, and when the blood mist dissipated, he disappeared, and no one knew where he went, and there was no follow-up from then on.

His eyes are as black as ink, and he is known as the Blood Shura, Xia Chu guessed that he must also be a system boss, maybe other people's systems are better than his own.

If you can find him in this life, wouldn't you have a powerful help?

"Early summer!"

It seems that seeing the desertion at the beginning of Xia, the teacher on the stage seized the opportunity and deliberately made it difficult to ask Xia Chu to get up and answer questions.

At the beginning of the summer, he pulled back his thoughts that drifted farther and farther away, and stood up, there was a math teacher on the stage, his name was Rock Yi, his personality was stubborn, he was dressed very dirty, his every move was full of the breath of a countryman, his temper was stinky and hard, and the students called him Rock Head on weekdays.

"At the beginning of the summer, look at the problem on the blackboard and prove that 1/1 y1 plus 1/y2 equals 1/b. ”

Yantou had noticed before that this kid hadn't even listened to a single word of this question, so it was impossible for him to answer this question, and besides, he was still talking about an over-the-top question, so it was impossible for this kid to say the correct answer.

Rock Head looked at Xia Chu's frowning appearance, and smiled proudly in his heart, thinking to himself Xia Chu, you still have today, but he has waited too long.

However, Xia Chu looked at it for a while and just pouted: "Teacher, your question is wrong and you can't solve it." ”

Teacher: "?!!" still has this kind of operation?

Xia Chu saw the confused look of the teacher and the students, and he corrected: "This question is not solved at all, if you want to ask, it should be proved that one part of y1 plus one part of y2 is equal to one part of b." ”

At the beginning of the summer, he walked up to the podium and wrote the answers to the original questions on the blackboard, leaving a series of formulas at the end, which basically did not hold.

The students were dumbfounded when they saw it in the end, a student is a scholar, and the teacher's mistakes can still be seen through by you.

After checking the lesson plan, he finally realized that when he was excited just now, he actually said the wrong topic at once, and it was not terrible to say the wrong thing, but the terrible thing was that he didn't find it at all!

In order to make a step for himself, the rock head said to Xia Chu: "Since Xia Chu is so smart, then let Xia Chu answer this question, everyone is welcome!"

The audience burst into applause, and everyone looked at Xia Chu with anticipation.

The change in the situation is very big, and the students have become accustomed to it, who are you making it difficult, but you are going to make it difficult for the top students in our class?!

"Hey, isn't this class taught by you, Teacher Yan? Why should you let the students talk about it? If you continue like this, one today, one tomorrow, then what's the point of your teaching? Just let our students be teachers, and you can retire. ”

These words directly petrified Mr. Yan on the spot, and his current appearance is more in line with the word "rock".