Datang: The prince of salted fish was overheard by Li Er

Li You didn't care about Kong Yingda's embarrassment, and continued to speak: "Students, take this opportunity today, and I will show you something new students will learn in the future."

After finishing speaking, Li You picked up an IOU brought by Ma Liu, and took out another IOU from the warehouse of Shence Mansion and said: "Many people at the scene have already seen these two IOUs, almost It's exactly the same, and I can't find any loopholes."

"Right?"

Li You finished speaking and looked at those people who had just verified.

"Yes, almost all the same."

"The only difference may be that the time stamp is different, but I think these should be added later, so they are different. They can't be used to distinguish the authenticity!"

One of the people who saw it said.

Li You nodded, expressing his affirmation.

"However, what you see is only the surface."

"Don't underestimate this IOU. The smallest denomination among them is thousands of guan. If you exchange it for copper coins, you can put it in a small box."

"How could such an important thing be easily counterfeited!"

"For this piece of paper, the best craftsmen in Shence Mansion worked hard for ten days."

"And the paper used for printing is also unique to Shence Mansion."

"As far as these two points are concerned, there is nothing wrong with the IOUs brought by Ma Liu."

Li You talked for a long time but confused everyone.

From this point of view, it is not easy to forge these IOUs. Could it be said that these are all true?

And Ma Liu on the side also started to get arrogant.

Cheng Yaojin couldn't help but take two more steps in his direction with that villain's triumphant appearance, and he was so frightened that he hurriedly backed away.

But at this time, Li You's words attracted everyone's attention.

Li You continued: "But, what is fake is fake."

"It can't be true, and it can't be true."

"The three major aspects of authenticity, the screen may find the same exquisite carving master, and the paper you can buy from Shence Mansion, but the ink I printed is not sold outside."

Just after Li You finished speaking, Ma Liu boldly said, "It's all black ink, what's the difference!"

Li You chuckled and said, "Of course it looks the same to the naked eye, but it's different under other conditions."

"I'll convince you to lose later."

After finishing speaking, Li You asked someone to take out the oil lamp, put a receipt on the oil lamp and baked it.

"What are you going to do, want to burn these IOUs, and then deny it!"

Ma Liu yelled loudly again.

He wasn't afraid that the thing would really be burned, he wouldn't get the money, he just wanted to make things worse.

However, Li You only roasted it for a while, then handed it over to Cheng Yaojin and asked, "Duke Lu, can you see the difference between these two IOUs now?"

Cheng Yaojin took it and looked at it again, and a look of joy appeared on his face immediately.

"Hey, now you have nothing to say."

"Ma Liu, your IOU is fake!"

At this moment, after being heated at a high temperature, the two IOUs have shown obvious differences.

One of them emerged with two big black divine strategies, while the other had nothing at all.

"This, how did you do it!"

"I don't believe it, it must be your trick."

At this moment, Ma Liu is still struggling.

But this time, Cheng Yaojin didn't listen to anyone, took his two sons to Ma Liu, and took him down.

"Hmph, whether it's fake or not, we'll know if we verify it one by one!"

"Come on, let's all do it together and see how many of the 500 million are genuine!"

After speaking, Cheng Yaojin made everyone start to act.

This time, no one stopped his action, on the contrary, many people joined his ranks.

While everyone was warming up to the fire one by one, Kong Yingda asked, "King Chu, why are there black characters on the real IOU?"

Li You didn't show off, but said loudly: "Actually, this king has long thought that someone would forge an IOU, so when it was first printed, these two words were printed in advance."

"And these two characters will only appear after heating, which is because a special material is used in the ink."

"The change of this material will also be a course we will open in the new school in the future."

"Please remember, this is not Taoism, but science!"

After Li You finished speaking, the students present became even more excited.

Not only the students were excited, but even the adults who were watching were also excited.

Cheng Yaojin patted his two sons and said: "See, you must have taught me this method."

"When marching and fighting to deliver documents, if you use this method, you don't have to worry about the enemy stealing information!"

"There is also the one who used the drum to make the sound just now, you should also study hard."

"In the future, it will be useful to count troops on the battlefield."

"If you can't learn well, go back home and take care of yourself!"

It has to be said that these two abilities that Li You showed at the opening ceremony today completely shocked Cheng Yaojin.

As for Cheng Chumo and the two brothers, it didn't matter if they were completely soy sauce from the beginning, and there was pressure to learn.

Soon, everyone roasted all the hundreds of IOUs brought by Ma Liu.

After statistics, among the 500 million guan, there are really 43 thousand guan.

On these real IOUs, the word "Shen Ce" appeared in all of them.

"It's coming to an end, what else do you have to say!"

This time it was Cheng Yaojinzhi's turn to speak proudly.

Seeing that the matter was brought to light, Ma Liu panicked a little.

But he was still struggling with his last hope.

"I don't know about this either. Only 40 of these IOUs are my own, and the rest were exchanged with me when I came here!"

"I'm also a miserable person, and I was tricked by those people too!"

"If you say it's fake, it becomes fake. What can I do!"

At this time, Li You couldn't help feeling a little admiration for Ma Liu.

From the poor acting skills at the beginning to the never giving up now, Li You asked himself that maybe he still couldn't do it.

Appreciation is appreciation, but Li You will not let him go: "Ma Liu, didn't you just say that they belong to your brother!"

"Why is it now changing for other people?"

Li You's words made Ma Liu seem to see a turning point, and he immediately said, "Back to the King of Chu, the young one is well-known in ten miles and eight towns, so they all recommended me to come."

"King Chu, they cheated on me, so don't cheat on me."

"Give me my money, it was brought back from the grassland by my brother who was born and died."

Li You nodded slightly, picked up the 43 real IOUs and asked, "Are you sure these IOUs belong to you, brother?"

Ma Liu nodded quickly and said, "Yes, these belong to my brother."

However, Li You's face suddenly turned cold: "Hmph, you are so courageous."

"When death is imminent, the mouth is still full of nonsense."

"In my opinion, you are not going to do business on the grassland at all, you are going to grab money!"