"Mom, let's discuss something with you?" Cheng Nuo carefully rubbed Jiang Lan's shoulders and said with a smile.

"What's the matter? Tell me!" Jiang Lan was in a pretty good mood and nodded with a smile.

"That... can you give me two hundred yuan?" Cheng Nuo rubbed his hands and said, "Isn't this the college entrance examination almost? I want to buy some study materials."

"Really? Didn't I buy it enough last time?" Jiang Lan said in confusion.

Speaking of this, Cheng Nuo had a toothache.

Although Cheng Nuo's parents restricted their promised consumption in terms of pocket money, they could learn more, Cheng Nuo's parents were not stingy at all.

Due to the times, Cheng Nuo's parents' education was not high. Due to the times, both of them graduated from high school. So they put all their expectations on Cheng Nuo.

As long as it is a place where money is spent on studying, Cheng Nuo's parents do not offer any discounts at all. They even have it.

Can you imagine Cheng Nuo's mood when he saw the bookshelves of review materials?

He was a little doubtful at that time whether he was their biological child!

"Oh, this time it was the teacher who asked me to buy some information." Cheng Nuo has already practiced lying and not blushing, not beating, it is a skill that is not irritable.

Anyway, no matter what, just get the money.

One thing Cheng Nuo said was right. The reason why he asked Jiang Lan for money was indeed to buy some information. However, it was not learning information.

As for Cheng Nuo's review materials slowly on the bookshelf, it may not be possible to finish them until his grandchildren have bought them. Cheng Nuo is not as frustrated as he is idle.

Cheng Nuo has his own plans for the two hundred yuan.

Jiang Lan did not doubt the authenticity of Cheng Nuo's words. Since it was related to learning, Jiang Lan took out 200 yuan from her wallet without hesitation and handed it to Cheng Nuo.

"Take it. If the review materials are not enough, I will go to the bookstore another day."

"No, no, no..." Cheng Nuo waved his hands repeatedly with sweating, "Enough, these are enough."

"Okay, I'm going to study, you guys continue to talk, continue to talk."

Cheng Nuo quickly stopped the topic and took the schoolbag back to the bedroom.

"The number of layers is 12, 40.54 meters high, 62.48 meters long, 54.24 meters wide, covers an area of ​​3388.92 cubic meters, 36 households, 10 brightness..."

"Height 175.87 cm, weight 85.24 kg, lung capacity 4002...brightness 2..."

"Speed ​​54 km/h, weighing 3214 kg...brightness 15..."

On the balcony, Cheng Nuo was wearing a casual hooded jacket and lay on the railing and looked at the city in the night sky with his supernatural powers.

Even under the dark night sky, even things that cannot be seen by one's own eyes can be transformed into data and transmitted to Cheng Nuo's brain, giving Cheng Nuo a feeling that the whole world is under control.

Cheng Nuo opened his arms and embraced the world.

Suddenly, a cool breeze blew, and the cold breeze poured into Cheng Nuo's neckline.

"Ah Yeh! So cold, so cold!"

Cheng Nuo quickly closed the window and returned to the house with trembling cold.

"The wind speed is 8.7 meters per second, the temperature is 8.2 degrees Celsius." His eyes gave Cheng Nuo an accurate number.

"Is it going to rain?" Cheng Nuo wrapped himself in a blanket and looked up at the night sky outside where there was no moonlight.

The air humidity is 92.41%.

Seeing such a value, Cheng Nuo estimated that it was going to rain 80%.

Half an hour later, a spring rain fell from the sky.

"Volume 0.05 ml, weight 0.051 g, speed 8.52 m/s..."

"Volume 0.06 ml, weight 0.059 g, speed 9.54 m/s..."

"volume……"

Cheng Nuo lay on the bed and used raindrops to calculate how many sets of data he could collect at the same time.

Cheng Nuo finally came up with the answer - 100 groups.

At least for now.

Once this number is exceeded, Cheng Nuo's brain feels dizzy. Cheng Nuo is worried about what problems will occur, so he resists the idea of ​​resisting the dizziness and continuing to increase the data collected.

For Cheng Nuo, it is enough to be able to collect 100 sets of data at the same time.

…………………

The next day, Qingcheng was baptized by spring rain, and the dew was faded, and the city was filled with the fragrance of soil.

As soon as he arrived at the classroom, Cheng Nuo received the call from Lao Tang.

"Cheng Nuo, Lao Tang is looking for you again." Jiang Qingqing was the one who passed the message.

When saying this, Jiang Qingqing looked at Cheng Nuo in surprise. What did Cheng Nuo do? Last night, Lao Tang called for a class, and I still have to go today?

"Oh, Cheng Nuo, you are here, come here first."

In the office, when Lao Tang saw Cheng Nuo coming in, he immediately waved to Cheng Nuo with a smile.

Uh... Cheng Nuo paused for a moment.

Lao Tang’s attitude is really a little uncomfortable!

"Teacher, are you looking for me?" was still a familiar opening remark.

"Come on, Cheng Nuo, come and take a look at this question." Old Tang continued to smile.

Cheng Nuo continued to panic...

"Look at this question, can you solve it?" Cheng Nuo took the question handed over by Lao Tang and complained silently in his heart.

I just let me do this question last night, but I just want to let me go twice!

Although he complained in his heart, Cheng Nuo still picked up the question and started reading it.

"There are n≥2 line segments on the plane, and any two line segments intersect, and no third line segment intersects at the same point. Geoff selects an endpoint on each line segment and places a frog on this endpoint. The frog faces the other endpoint. Then Geoff will slap n-1 times with his hand. Whenever he slaps his hand, each frog immediately jumps to the next intersection point of the line segment where it is located. Each frog will not change the direction of the jump. Geoff's wish is to be able to place the frog appropriately so that at any time there will never be two frogs falling on the same intersection point:

(a) Proof: If n is an odd number, Geoff can always realize his wish.

(b) Proof: If n is an even number, then Geoff will not be able to realize his wish."

A question that can be called difficult by Lao Tang is definitely not a good deal.

Cheng Nuo calculated the matter in his mind, and had no idea. He pulled a chair and sat on the table in front of Lao Tang and solved it.

Old Tang also focused on Cheng Nuo's actions.

Yesterday, I didn’t expect Cheng Nuo to do it, so I didn’t focus on Cheng Nuo at all.

Now he wants to see if Cheng Nuo has become as genius as he imagined.

Cheng Nuo was writing and drawing on a blank piece of paper. Lao Tang was like a student at this time, looking at every number written by Cheng Nuo on the paper without blinking, and speculating on its rationality.

At this time, other teachers from the math group arrived one by one.

Seeing that Old Tang was staring at a student solving problems with concentration, he smiled and asked, "Old Tang, has this student made you angry again?"

The teacher thought that this student made a very simple and childish mistake when doing the test. Lao Tang called him to the office to direct the steps for the test.

……………………

ps: The unit I use for brightness is: sb (Xiti), and I will use this unit from now on.
Chapter completed!