Wen Cheng was led by Su Meng to a wooden door, and the signboard on the side showed "Qualification Certification Office".

Su Meng pushed open the door, and there were dense various instruments in front of him, if it weren't for the light patterns on the ceramic shell, at first glance he thought he had come to the physical examination room of the hospital.

"Is there no one?" Su Meng smiled bitterly, "It seems that the manpower is really not enough."

"Will you use it?"

"I'll think about it slowly, come."

The first is the loop test, there is a white stone bed in front of him, Wen Cheng lay down and there was a coolness behind him, Su Meng held a white magnetic ring from Wen Cheng's left shoulder to his waist in the air, back and forth three times, and then helped him up.

"There's no strange feeling, it's just that the body is slightly hot."

"That's because it's slightly resonating with your circuit, and analyzing your circuit's qualifications through feedback data." Su Meng slapped the folds of the boy's sweatshirt off.

"By the way, how do you know where my circuit is?" The boy asked.

The movements were so skillful, since Su Meng could see the loops that others couldn't see, it wasn't surprising that he could see the loops on his body.

"This...... Su Meng smiled lightly, "Male left, female right, ......"

After a while, the cylinder connected to the white magnetic ring showed the lettering.

"Width E, resonance synchronization rate C, toughness C, composite D."

The width is easy to understand, and it should be the unit rate at which the source of the law is generated and gushed.

"What is the resonant synchronization rate?" He asked.

Although everything is failing, I still have to endure the shame and ask clearly......

"It's your ability to resonate surface sources to create extracorporeal spells." Su Meng replied quickly.

The boy was silent, probably able to understand seventy or eighty percent, it turned out that spells were still divided into internal and external spells.

"Okay, not bad." Su Meng smiled and patted Wen Cheng's chest.

"Not bad? This score should be very poor......

"As a beginner, this is naturally the case, Wen Cheng, don't be discouraged...... Su Meng said.

"Is this true for beginners?" Wen Cheng breathed a sigh of relief, "That'...... How much was Ryu Zhen when he was a beginner?"

"That...... Haha......" Su Meng smiled bitterly, "It's better not to ask......

"Hmm! I won't ask!" It's better not to do this kind of thing, the boy nodded desperately.

"What about you?" Wen Cheng asked.

"The first time I tested it, the width was D......," Su Meng said weakly.

In this case, it seems that Su Meng's qualifications are not much better, thinking that he can still carry her, the boy clenched his fists with great ambition.

"But...... The resonant synchronization rate is S." Su Meng smiled innocently.

"Let's go, next."

Next was the physical fitness test, and Su Meng led Wen Cheng to a small room.

"Treadmill?" He asked, pointing to a slowly spinning conveyor belt.

"yes, treadmill...... It's a matter of your stamina."

Fortunately, he was wearing sneakers, and the boy stepped on them directly, and he was full anyway, and the speed on the conveyor belt was enough for an hour.

Knock knock, knock knock, the conveyor belt spun faster and faster, and the boy's steps began to be disordered, and his breathing became rapid.

"This...... Call...... Can't you stop?" He said in a panic.

"Don't worry, it'll stay at your critical speed."

"The so-called critical velocity...... Call...... It's just the speed at which I can't breathe."

"Hmm...... It can be understood in this way, after all, it is to test it out faster, come on." Su Meng smiled.

When he stepped off the conveyor belt, Wen Cheng was already sweating profusely, his face was pale, and he endured the discomfort in his stomach and said, "I thought it would be ...... Call...... The so-called certification is to pass an instrument or something, and then automatically help me issue a report...... I didn't expect ...... It's going to be so painful......

"Huh? So you want that," Su Meng said, "Actually, there is that kind of thing."

「……」

"But it's not very accurate, and you don't have the basic data yet, when you finish these tests, you can use a comprehensive tester for the next test."

"Good is good, but aren't we in a space-time loop, that is, ......?"

"Uh...... I think so...... Looks like you're going to have to test it that way every time you come...... I'm really sorry, Wen Cheng, I don't know how to comfort you......

"Whew...... Let's do it......

Next is the transmission device, the principle is about the same as in the hospital, Wen Cheng lifted the dumbbell connected to the instrument, respectively, so that the muscles of the arm are in a state of tension and relaxation, the pressure is greater and greater each time, and it is extremely sore several times, and the long white rod with bright lines shines red light on his arm, and layer by layer irradiates into the epidermis, muscles, blood vessels, and bones.

Su Meng read on the last instrument, "Muscles and bones C, body method C, endurance C." With unclear intentions, he smiled at Wen Cheng.

The boy sniffed and went to the next small room.

Next is the programming ability, there is only a table in front of him, on which is a thick glass dial, Wen Cheng put his palm on the dial, and in an instant connected to his own circuit, the black glass disc emitted light patterns.

"This is a test of your etching power," Su Meng sat down across from Wen Cheng and looked at him, "Wen Cheng, now close your eyes and try to drive Ziyuan to carve a circle on the surface of the dial."

It's that simple?! The boy stuck out his tongue.

As the arms and shoulders transmitted a stream of heat, a sharp sensation came from the palm, accompanied by a slight burn, and in less than a second, the program was completed, and a perfect glowing ring appeared on the surface.

"Okay," Su Meng said, looking at the instructions on the side, "Let's draw a cube."

"Cube?" The boy asked, "So you're going to engrave the source into the dial?"

"That's right," Su Meng pushed his glasses, "It's not difficult."

Of course it wasn't difficult, the boy smiled and blinked, the surface of the glass plate was emitting heat, and lines were slowly drawn inside, and finally connected into a cube that glowed with white light.

The boy breathed a sigh of relief, the dial quickly cooled down, the cube disappeared, and a chill regained from his palm.

Anyway, I've written a lot of code myself, but my imagination and brain memory are still difficult.

"I'll take some time in the future," Su Meng hesitated for a moment and said, "Wen Cheng, you're going to draw a positive twenty-four cell body."

"Twenty-four?! Cell body?!" The boy's mouth suddenly opened wide.

"Don't leave the palm, otherwise it will be judged a failure," Su Meng hurriedly said, and held up the manual, "Look, this is the Schlegel projection of the positive twenty-four cells."

(Note: The surface of the regular twenty-four cell body is composed of 24 regular octahedrons, which is a geometric product in a four-dimensional space.) The Schlegel projection is the projection of a four-dimensional object in a three-dimensional world. ）

The boy smacked his lips as he looked at the instruction manual.

"Wen Cheng," Su Meng said in a gentle voice, "Unlike the hypercube, which can be compared to a cube, there is no three-dimensional analogy between the twenty-four cells, this question is a free assignment, even if you make a mistake, it doesn't matter, there is enough time, calm down and think slowly."

"Hmm!" The boy nodded vigorously.

Exhale, inhale, exhale, he closed his eyes.

The composition of the high-dimensional space is the biggest difficulty, especially the extra axis, according to the ascending operation, it must be spread in all directions.

No, no, no, the problem is not the spatial ascension, because the dial under the palm of the hand is obviously a three-dimensional object! The brain is racing.

There are a total of 24 octahedra, what does the octahedron look like, there is no doubt that it is the kind of special dice, there are a total of eight faces, oh yes, it should be two pyramids up and down, each face is a regular triangle, each face of the four-dimensional space is the same as each side of the three-dimensional space, so each face is connected with two bodies, so the total number of faces is 24 times 8 divided by 2, the answer is 96 regular triangles.

To form 24 regular octahedron from 96 regular triangles, since it is a projection, you don't have to worry about the size of each body.

The boy slowly spliced and formed in his mind, and a light appeared in the glass, slowly and slowly outlining a three-dimensional labyrinth, like a nesting device carved by a skilled craftsman, layer by layer.

"Really...... Perfect......" Su Meng covered her mouth and looked at the glass plate under the boy's palm.

"However, it seems to be completely different from the manual......" Wen Cheng frowned.

"No," Su Meng shook his head, "There is no standard answer to this question. Come and see what you're doing."

Wen Cheng put his palm away, and the glass dial displayed "Etched S, Memory B, Focus A, Comprehensive A."

"That's great, Wen Cheng!" Su Meng's fingers were interlocked, and his face was happy.

"So can it be understood that I am suitable for the path of a craftsman?" Wen Cheng shrugged.

Su Meng nodded.

It seems that Liu Zhen's instinct is right, no matter what, he will play to his strengths first. The boy let out a long breath.

Finally, there were frequency bands and tests, and Su Meng led him to the last room, where there was a row of disc-shaped targets in front of him.

"Wen Cheng, use your double magic bullet to hit these targets, each target corresponds to a different resistance."

"What are the different resistances?"

"That's right, even if it's a pure magic bullet, you can inadvertently inject it into the frequency band that suits you."

I see, no wonder Liu Zhen's magic bullet has a red light, and Su Meng's magic bullet has a blue light, but why is his own white?

Wen Cheng nodded, took a deep breath, and calmly hit the ten targets in front of him, and after a few white lights, only the diffuse gunpowder smoke remained in the room, and the targets stood firmly upright.

"Didn't fall?" The boy was shocked, is it not powerful enough?

"No," Su Meng smiled and pressed his arm, "This is for testing, and it won't fall."

The white panel on the side reads: "Frequency band distribution: flame D, light A, wind D, water C, ice D, earth E, wood E, air C, thunder E, dark A."

"No wonder," Su Meng looked at Wen Cheng and smiled, "Wen Cheng, it seems that you are most suitable for light and dark spells."

What is the system of light? What is the dark system? Wen Cheng was stunned.

"I'll tell you about this later, come, and finally evaluate your skills."

Coming to the last room, it was a huge humanoid target, and because there was only one skill, Wen Cheng called his double magic bullet on it.

When everything was over, Su Meng pulled out a piece of paper from the instrument at the end.

"Congratulations, Moon Seung!" Su Meng looked up at the boy with joy.

"What is it?"

"From now on, you're an apprentice to the third dan!"

"......" The boy drooped.

"Don't be discouraged," Su Meng looked at him, "it's not your forte, after all."

Wen Cheng nodded silently, Su Meng took his sleeve, came to the door called "Props", and pushed it open, while throwing a smile at the boy,

"Next, it's your world."