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

"What's the matter?" Jiang Lan was in a good mood, and nodded with a smile.

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

"Really, didn't you buy enough last time?" Jiang Lan said suspiciously.

Speaking of this, Cheng Nuo had a toothache.

Although Cheng Nuo's parents limit the promised consumption in terms of pocket money, Cheng Nuo's parents are not stingy at all in terms of re-study.

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

As long as it is a place to spend money on learning, Cheng Nuo's parents do not discount it at all. There are even more than that.

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

He was a little skeptical that he was their own!

"Oh, this time it's some materials that the teacher asked me to buy. "Cheng Nuo has practiced lying without blushing, his heart does not beat, no, it is a skill that is not dry.

Anyway, just get the money in hand.

Cheng Nuo is right about one thing. The reason why he asked Jiang Lan for money was indeed to buy some information. However, it is not a learning material.

As far as Cheng Nuo's review materials are concerned, he may not be able to finish them to his grandchildren. also bought review materials, Cheng Nuo was not as painful as he was idle.

For these two hundred yuan, Cheng Nuo has his own plans.

Jiang Lan did not doubt the authenticity of Cheng Nuo's words, since it was related to studying, Jiang Lan did not hesitate to take out two hundred yuan from her wallet and handed it to Cheng Nuo.

"Take it. If I don't have enough review materials, I'll go to the bookstore another day. ”

"No need, no need...... Cheng Nuo sweated profusely and waved his hand again and again, "Enough, these are enough." ”

"Okay, I'm going to study, you keep talking, keep talking. ”

Cheng Nuo hurriedly stopped the topic and returned to the bedroom with the schoolbag.

"The number of floors is 12, the height is 40.54 meters, the length is 62.48 meters, the width is 54.24 meters, the area is 3388.92 cubic meters, the number of households is 36, and the brightness is 10......"

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

"The speed is 54 km / h and the weight is 3214 kg...... Brightness: 15......"

On the balcony, Cheng Nuo was wearing a casual hooded jacket, lying on the railing and looking at the city in the night sky with his ability.

Even under the dark night sky, even some things that you can't see with your own eyes can be turned into data and transmitted to Cheng Nuo's brain. Let Cheng Nuo feel like the whole world is under control.

Cheng Nuo opened his arms and embraced the world.

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

"It's cold, it's cold!"

Cheng Nuo hurriedly closed the window and returned to the house shivering.

"The wind speed is 8.7 m/s and the temperature is 8.2 degrees Celsius. His own eyes gave Cheng Nuo an accurate number.

"Is it going to rain?" Cheng Nuo wrapped a blanket around himself 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 eighty percent of it was really going to rain.

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, using 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 was exceeded, Cheng Nuo's brain felt dizzy. Cheng Nuo was worried that something would go wrong, so he couldn't resist the idea of resisting the dizziness and continuing to increase the data included.

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

...............

The next day, after a baptism of spring rain, Qingcheng faded away the lead bloom, and the city was filled with the fragrance of earth.

As soon as he arrived at the classroom, Cheng Nuo received the call of Old Tang.

"Cheng Nuo, Old Tang is looking for you again. "It's Jiang Qingqing who is still the one who speaks.

When he said this, Jiang Qingqing also glanced at Cheng Nuo in surprise. Cheng Nuo: What the hell did he do? I was called to a class by Don last night, and I want to go today?

"Oh, Cheng Nuo, you're here, come on, come here, come here first. ”

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

Belch...... Cheng Nuo's footsteps paused.

Old Tang's attitude is really a little uncomfortable!

"Teacher, are you looking for me?" was still the familiar opening line.

"Come, Cheng Nuo, you can take a look at this question. Don continued to smile.

Cheng Nuo continued to panic in his heart......

"Look at this question, can you make it?" Cheng Nuo took the question handed over by Old Tang. I also complained silently in my heart.

Just let me do this question last night, and let me run twice!

Although he complained in his heart, Cheng Nuo still picked up this question and looked at it.

"There are n≥2 line segments on the plane, where any two line segments are crossed, and no third line segment intersects at the same point, Geoff picks an endpoint on each line segment and places a frog at this endpoint, the frog faces the other endpoint, then Geoff will clap his hand n-1 times, each frog immediately jumps to the next intersection of the line segment it is on, each frog does not change the direction of the jump, Geoff's wish is to be able to place the frog appropriately so that no two frogs will land on the same intersection at any time:

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

(b) Proof that if n is an even number, it is impossible for Geoff to grant his wish. ”

The question that can be called difficult by Lao Tang is definitely not a good stubble.

Cheng Nuo was calculating one side in his mind, and he didn't have any ideas, so he pulled a chair and sat on the table in front of Old Tang to solve it.

Old Tang also watched Cheng Nuo's movements intently.

Yesterday, because I didn't expect Cheng Nuo to do it, I didn't pay attention to 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, and Lao Tang was like a student at this time, looking at every number Cheng Nuo wrote on the paper without blinking, and speculated on its reasonableness.

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

Seeing that Old Tang was staring intently at a student solving a problem, he asked with a smile, "Old Tang, did this student make you angry again?"

The teacher thought that the student should have made a very simple and naïve mistake when doing the problem, and the old Tang called him to the office and instructed him to do the steps.

..................

ps: The unit I use here for brightness is: sb (Xiti), and I will use this unit in the future.