"Ding~~"

"Congratulations to the host, the math level has been improved by one level, comprehensive evaluation of s, and an additional reward of a random lottery opportunity!"

On Friday, at noon, in the library, when Liu Yichen finished painting the fourth set of Huanggang secret scrolls about compulsory 1, the mechanical metal sound of the system suddenly sounded in his mind.

"Damn~~What's going on? Why did you upgrade for no reason?" Liu Yichen was startled, then immersed in the system, and then saw the interface:

a:Mathematics:lv2(0/50)

b:Physics:lv1(2/20)

c:Biology:lv1(2/20)

d:Chemistry:lv1(2/20)

e: Chinese:lv0(4/10)

f:English:lv0(4/10)

Points: 31

Lifespan of the upper left corner: 366 days

According to the systematic judgment rules, if you reach lv2 in your own mathematics, it means that you have basically mastered the knowledge of high school mathematics.

Liu Yichen was a little confused. How did the system make this judgment? Is it because he made 4 sets of crown secret scrolls?

If this is the case, he is willing to write Huanggang Secret Books every day. Wouldn't he become a math master in just one month?

"System, lottery!" Liu Yichen said in his heart, and then he saw the familiar lottery roulette appearing on the system interface.

"Stop!" Liu Yichen shouted secretly.

"Congratulations to the host, I drew an Asus a8tm laptop, the laptop is priced at 14,300 yuan." The system sounded.

Liu Yichen almost spitted blood. This... Damn, the math level has been upgraded to lv2, the comprehensive evaluation level is S level, and the random lottery opportunity he won is to draw such a laptop?

Very disappointed!

Liu Yichen was so depressed that he vomited blood, but it was better than not. He went back to the dormitory, and his roommates were not there in the dormitory. Liu Yichen took out the lottery prize, a backpack containing an A8tm notebook, as well as a mouse, mouse pad, charger, LCD screen scrub solution, brush, etc., and a complete set, even the invoice and warranty card were all available.

"This laptop is so ugly!" Liu Yichen looked at the laptop and complained a lot. Judging from the perspective of more than ten years later, the real appearance of this laptop is simply disgusting.

I turned on the laptop and looked at the configuration. This configuration is pretty good. The LCD screen is a 14.1-inch mirror wide screen, paired with Asus' unique splendid bright color engine. The camera is the standard configuration of the A8 series. The pixels of the camera are only a pitiful 350,000 pixels, which is already a relatively high configuration in this era.

Let's look at other configurations. A8tm uses amd   Turion64    X2 processor, main frequency 2.0ghz, nvidia     Nforce   410    MCP chipset, nvidia     Geforce     7600 discrete graphics card, 2x1gb    ddr2   667mhz memory, 120g  

5400rpm     Sata hard disk, built-in DVD burner. As for the interface, it is equipped with 4in1 card reader, DVD burner, Express        Card slot, USB2.0 interface, Iee     1394 interface and audio interface, 4 USB2.0 interfaces and infrared ports, s-video, vga, dvi, network card, modem interface and keyhole are all configured.

"Just this thing, the market price is 14,300 yuan. If it is 10 years later, no one will want 3,000 yuan." Liu Yichen complained: "It seems that we have to find some time to go out to apply for a wireless Internet access."

It’s not possible to have a laptop, you still have to be able to access the Internet. However, there is no internet cable in the dormitory, which is obviously not possible. If you can handle it, it is wireless Internet access, based on the traffic.

Turn off the notebook and put it back in your backpack. Liu Yichen put the backpack in his cabinet and locked it. This thing cannot appear in front of the teacher, nor can it appear in front of the family in a short period of time, otherwise it would be difficult to explain.

In the afternoon class, Liu Yichen was still 5 minutes late, but he entered through the back door with a thick face. When the teacher saw it, Liu Yichen was not panicked and sat steadily in his seat. The teacher did not say anything, but continued to give lectures.

"Liu Yichen, come and answer this question!" Suddenly, Lu Jun's voice sounded.

When Liu Yichen saw a question that Lu Jun had just written, it was about logarithmic operations, but it was obvious that he had not finished this.

"Teacher Lu is really scrupulous. I thought he would pretend that he hadn't seen it, but in less than 10 minutes, his revenge came." Liu Yichen muttered to himself. He knew that once he had not solved this problem, Lu Jun would take advantage of it, and then he was punished to stand at the door, kill the chicken and scare the monkey, and establish his prestige.

Liu Yichen's face was very calm, he walked up to the podium and picked up the chalk, and wrote below: log2(4^7×2^5)=log2(4^7)log2(2^5)=7log2(4)5log2(2)=7×25×1=19.

Just a little bit, can you still find yourself with such simple logarithmic operations? I really think that I was doing it in vain.

A hint of surprise flashed in Lu Jun's eyes. He didn't expect that Liu Yichen could do the knowledge he had not taught yet.

The answer process written by Liu Yichen on the blackboard was so confused that the others were completely confused and didn't understand what it was.

Lu Jun did not explain, wiped off the blackboard with a blackboard, continued to talk about the exponential function, representing the two different situations with a Cartesian coordinate system, and then expanding it through the graphics and properties.

Exponential functions are an important part of functions. They involve the images, domains, value fields, and properties of exponential functions, which lay the foundation for the functions learned later. If you can't even understand the basic functions, you don't need to think about the more complex functions later.

Liu Yichen was not distracted because he had finished learning, but listened carefully to Teacher Lu's explanation. After all, there were inevitably some things that he did not understand well, otherwise there would not be any questions that Huanggang Secret Books that he would not do or did wrongly.

There was only one math class in the afternoon, and then it was physical education class. In this physical education class, Liu Yichen rarely took the initiative to step up and proposed to form a class basketball team. As the first year of high school entered the second month of the first semester, many high school classes actually had already formed a class basketball team. Now that they have only formed a basketball team in Class 18, it is already relatively late.

As a result, the class basketball team was formed relatively smoothly, recruiting 10 people. In addition, Lin Ningwei volunteered to be a logistics support staff, so the class basketball team was formed.

"Dear teammates, as the saying goes, a snake cannot do without a head. A basketball team also needs a captain to lead. I volunteer to be the captain of our basketball team. What do you think? I welcome everyone to challenge. Basketball depends on strength. As long as you defeat me with the basketball in your hand, you can become the captain." Liu Yichen said to 10 teammates.

As a result, none of them took the initiative to challenge Liu Yichen because they had seen Liu Yichen play as the main player of the school team, and no one thought they could beat Liu Yichen.

Liu Yichen then directed the players to train, and then explained some rules of basketball games, such as what walking is, what fouls is a thug, and of course he also personally demonstrated the common trick - three-step layup!
Chapter completed!