The sky has gradually darkened, but in the classroom of Bailu Academy, it is a brightly lit scene, and on the surrounding walls, blazing torches are lit, illuminating the entire classroom as if it were day.

Su Ziheng stood on the podium and pointed to the whiteboard behind him with a teaching whip, on which he wrote twenty-six letters and Arabic numerals from 0 to 9 with charcoal.

Looking at the more than 50 people in the classroom, he smiled slightly: "Today I want to talk to you about the understanding and basic use of these special symbols and numbers, numbers must be familiar to everyone, many craftsmen working in the workshop, should have been in contact with our unified weights and measures, they use these values to convert......

Su Ziheng began to explain the convenience of Arabic numerals to everyone present, in fact, in addition to a few Taoists in Longgong Temple, it turned out that the craftsmen of Sufu had begun to accept and use Arabic numerals, and even many could complete addition, subtraction, multiplication and division operations within ten.

They came tonight mainly to learn the twenty-six letters. These strange symbols are the most curious to them.

For Su Ziheng, he taught everyone to learn the twenty-six letters, not because he had any psychology of admiring foreigners. In chemistry, the elements are all expressed in letters, and if he didn't teach everyone the alphabet and Arabic numerals, he wouldn't be able to teach chemistry.

The importance of several subjects such as mathematics, chemistry, and physics is self-evident. If Su Ziheng really wants to create his own and at the same time transcendent Taoyuan World, the first thing is to reproduce all the advanced technologies he brought from the earth in his previous life, relying on the alien base in his hand, to this world one by one.

Isn't there a saying that if you don't have the strength to pretend to be a fool, you are called a fool; If you have the strength to pretend to be forced, that's called bullshit.

Su Ziheng has no ambition to dominate the world, he just wants to protect his own one-third of an acre. Although he had not actually traveled the world, he could know from the descriptions in various books that the continent he was on was much larger than the previous life of the earth, Asia.

He didn't think he could rule an entire continent with just one alien base and some of the advanced weapons inside. Perhaps the base transforms into a combat form, and the dragon warship can capture any city on the mainland.

But what about the down? How do you keep it?

In the history of the earth in the previous life, there has never been a shortage of people with great talents and outstanding military achievements, such as Qin Shi Huang, who ruled the world, and Genghis Khan, who swept the world later, was very powerful when he fought the world, but how many of them could keep the foundation of eternity?

Not to mention the eternal life, the second Qin Dynasty died; The Yuan Dynasty is only a hundred years old.

What's more, on this planet, there is also a sword of Damocles hanging overhead. The Zerg that suddenly landed without knowing when, even if it wasn't a large army, just an advance army, one or two interstellar warships, with the existing technological civilization of this planet, it would not be able to stop them from destroying the world.

In this case, why should Su Ziheng be so fortunate to fight the world? Wouldn't it be better to live this life in peace and comfort?

……

……

The advance army of the 200 Mengyuan sneak attack team in disguise stopped at the gate of Sichuan County, and to their great surprise, before it was time to close the city gate, the city gate had been closed, and the drawbridge of the moat was also pulled high.

"Stop! Who are you? ”

The city guards who were patrolling the city wall of Sichuan County saw someone approaching below, and immediately asked loudly. Recently, because of the locust plague, there are homeless people approaching everywhere, and the county magistrate has ordered that no one is allowed to enter.

Coupled with Meng Yuan's declaration of war on Great Xia, Sichuan County happened to be the front line of the battlefield, and Xiang Tao, the magistrate of Sichuan County, did not even let the city gate open during the day in order to prevent the Meng Yuan soldiers from mixing with the displaced people to enter the city.

Bo Yalun saw the closed city gate and locked her eyebrows, she didn't expect Xiang Tao, the magistrate of Sichuan County, to be so cautious and close the city gate early, so that people would not have a chance to seize the door at all.

And in order not to attract the attention of the Sichuan County guards, Bo Yalun deliberately did not arrange a large number of troops to come, and it was very difficult to take the city by force, so it seemed that he had to outwit it!

Bo Yalun glanced at one of the guards who came with him, and saw the guard stand up and shout in a hoarse voice: "One hundred thousand troops are urgent!" A certain person came to Sichuan County to ask for help on the order of Lord Ouyang, and quickly opened the city gate, so that I could ask to see Lord Xiang. ”

When the guards above heard that there was an urgent military report, they did not dare to delay any longer, and shouted loudly: "You wait a while, I will go and ask the county lieutenant." ”

In this era, before the outbreak of war, the garrison of each county town was composed of local village soldiers, and in peacetime it was under the direct jurisdiction of the county lieutenant, and the number was only a thousand.

Only when the war broke out, the defenders of the state capital would be stationed in various counties, such as the Liangzhou Army and the Zhongjia Army on the Xiliang side, and so on.

This time, the war launched by the Mengyuan Empire was too fast, and the Liangzhou Army and the Zhongjia Army were still following Zhonggang to conquer the Mengxi Coalition Army, and they had not yet had time to withdraw from Yangshang County and other places. Therefore, for the time being, it is still guarded by the township soldiers of each county.

Soon, Ran Fa, the county lieutenant of Sichuan County, and Xiang Tao, the magistrate of Sichuan County, who received the news, came to the gate of the city. At this moment, it was getting late, the light was dim, and I could only see the vague figure below, and I couldn't see the specific appearance.

"Someone, light a torch." The magistrate commanded to Tao.

After the torch was burned, Xiang Tao looked down by the light of the fire and saw that he was dressed, which was indeed the costume of the village soldiers. And the clothes were stained with blood, and there were marks of being cut by a sharp blade, apparently after a hard fight.

However, he still had a little more heart, pretended to be puzzled, and asked, "Who are you?" Why has I never seen you? ”

The guard was slightly stunned, and then quickly reacted, and before coming, just in case, Bo Yalun also explained to him the plan for dealing with similar things.

"Back to this adult's words, the little one is Peng Xing, the leader of the township soldiers under the county lieutenant Ouyang of Kangxian County. This time, on the orders of the county and the county governor, I came to ask for help. ”

Ouyang Yi, the county lieutenant of Kangxian County, and Peng Xing, the leader of the township soldiers, according to the news investigated by Bo Yalun, there were indeed these two people, so they did not ask Tao about it.

Xiang Tao glanced back at the county lieutenant Ranfa, and saw that he nodded at himself, and he had already let go of half of his heart, "Since you said that you are here to ask for help, do you have a seal?" ”

The guard hurriedly took out a bloodstained letter from his bosom and said loudly: "This is a letter written by the county magistrate himself, stamped with a seal, and please check it out." ”

Soon a hanging basket was placed on the wall and the letter was lifted. Xiang Tao took it and looked at it, the blood stains on the envelope blurred the handwriting, and he only vaguely saw the words "Brother Tao personally opened", which was indeed written for himself.

When I opened the letter, the handwriting inside was very sloppy, and it was somewhat similar to the handwriting of Lu Haoquan, the magistrate of Kang County, which must have been caused by the eagerness of the person who wrote it. Looking at the final payment and seal, it is indeed the county seal of Kang County.

Xiang Tao breathed a sigh of relief and ordered: "Come on, put down the drawbridge, open the city gate and let them in." ”