I failed a course, and the system became my study supervisor.

Chapter 23: School Selection Begins

"boom!"

The next morning, Xu Ling, who had just opened his eyes, suddenly shuddered and jumped up from the bed. He hurriedly touched his body from head to toe with both hands.

Xu Ling finally breathed a sigh of relief when he realized that he was not missing any limbs. What happened in his dream last night was too magical and he was still scared.

Since everything is fine, does that mean my body has been strengthened?

Xu Ling was very curious about what his body looked like.

His body was not covered in dirt like in martial arts novels after undergoing marrow cleansing.

After getting out of bed, Xu Ling used the materials available and started doing pull-ups by grabbing the edge of the bed.

One.

two.

……

Xu Ling did fifteen in a row. If the edge of the bed wasn't a bit uncomfortable, doing ten more would not be a problem.

I rely on!

Is this the power of the system?
If such a thing had not happened to him, Xu Ling would never believe it.

A fragile college student who would get out of breath after running a few steps suddenly possessed physical fitness that surpassed that of an ordinary person overnight.

Besides being shocked, Xu Ling was also indescribably excited. He had transformed his body overnight. What else could the system not do?

Are those imaginary black technologies far away?

However, a journey of a thousand miles begins with a single step. What needs to be solved now is the on-campus selection.

……

"I'm glad that the students are so enthusiastic about participating in the selection process, but we still need to abide by the rules. I hope everyone will answer the questions honestly and fully demonstrate their abilities."

A kind-looking old man was holding a thermos cup and talking about random things slowly. He took a sip of tea from time to time and then spat the tea leaves back.

The papers had not been distributed yet, Xu Ling looked around and found an acquaintance.

Qin Kai!

This guy is sitting right below Xu Ling.

Compared with Xu Ling's calmness, Qin Kai seemed a little nervous and embarrassed, with an unnatural look.

But when he saw Xu Ling turning around, Qin Kai seemed to find some sense of security, and his tension was visibly relieved a lot. He even kept winking at Xu Ling.

Seeing this, Xu Ling silently raised his middle finger in greeting.

"Okay, students, please put anything not related to the exam on the podium. The papers will be distributed soon. Work hard!"

The old man casually glanced at the clock above his head, put down the thermos, tapped his fingers in his mouth, and started counting on the test paper.

There were only about thirty papers in total, divided into five parts. The old man procrastinated for at least three minutes, and Xu Ling was so anxious that he almost started to urge him to finish.

Finally, I got the test paper.

Question 1: Take a box filled with identical objects (approximately small balls). Consider a method to determine the number of objects inside the box based solely on the sound produced by shaking the box. How accurate is the method? What factors are involved?

Ok?
This question is very interesting!

There is no dullness at all from the previous questions.

Xu Ling was very excited.

However, other people in the examination room were not as interested as Xu Ling, and most of them looked confused.

Why doesn't this problem give any known quantities? Are you kidding?
Let us build the model and complete the theoretical derivation entirely by ourselves?
Qin Kai, who had just been winking at Xu Ling, now had a serious look on his face.

He had never seen such a question before.

Qin Kai had no idea what to do, so he looked at Xu Ling in front of him on the left. He saw Xu Ling's eyes shining with joy as if he had found a treasure.

Qin Kai suddenly felt like there was something stuck in his throat, like a thorn in his back, and he felt very uncomfortable.

He hates it!
Why was I so presumptuous as to sign up for this exam? Why was I assigned to the same examination room with Xu Ling, a non-human?

Qin Kai was silent.

The reactions of the people around him didn't bother Xu Ling. He continued to work on his derivation with great interest. In just a few moments, he had already finished the first problem.

In fact, this first question is not as difficult as imagined. Many people are just shocked by the format.

For example, if the number of balls is small, you can shake the box containing 1, 2, etc. balls with the same strength and shaking method.

Then record the sounds, get their characteristic parameters, or directly draw a waveform graph.

Finally, by comparing, we can know how many balls are in an unknown box.

However, this method is not accurate and is greatly affected by external conditions, such as the materials of the ball and box, the noise in the external space, and so on.

"Question 2: By observing a single water droplet placed on a glass surface, we discovered that it can act as an imaging system. Try to study the magnification and resolution of this water droplet lens."

This question is a classic optical problem. Although it looks simple, the actual research is very complicated.

After seeing this question, many people who had just had hope for the questions after the first one have completely lost confidence.

Many people have already stood up from their chairs, put their papers on the podium, and walked out in a leisurely manner.

This surprised Xu Ling, who thought these people had really done it.

But Qin Kai was still resisting stubbornly, with a frown on his face and his hands still scribbling and revising.

However, the successive people who went out in such a carefree manner had disturbed his mind.

"Depend on!"

Finally, Qin Kai couldn't write anymore. He shouted suddenly and was about to slam the table, but suddenly remembered that he was still taking an exam. He withdrew his hand and walked out awkwardly under the gaze of the invigilator.

"Depend on!"

After Qin Kai walked out of the door, he cursed again, and the old man on the podium frowned.

I guess what he was thinking was that this child has very poor psychological quality!
The exam continued, and about half of the time had passed, and Xu Ling had finished the second half of the test paper.

There were only about a dozen people left in the classroom.

At this time, the invigilator who had been sitting on the podium for a long time walked down from the podium and began to patrol. Every time he passed a student's seat, he would look at the answers written by the students.

The key is, he just looked at it, but he also shook his head from time to time and made a clicking sound with his mouth.

Many students had just managed to calm down, but this wave of outrageous actions disrupted their composure.

Ok?
Did this child answer every question?
You wouldn't write it randomly, would you?

Let me take a look.

The old man stopped beside Xu Ling and looked at him carefully.

Eh? Seems correct?

Although the method for the first question is a bit rough, the discussion of the subsequent questions is of a higher level.

The old man's expression was full of approval.

What a good seedling!

Is your name Xu Ling?

It seems that Lao Liu and Lao Xu are working on a paper recently. It seems that it was written by a kid named Xu Ling. Is it this kid?
The old man's expression kept changing.

Xu Ling was not affected. He was now completely focused, and everything around him disappeared from his perception.

(End of this chapter)