The rest of Xu San didn't see much.
Just kidding, this is high school winter vacation homework. Even if Xu San knew how to do it, he wouldn't be able to finish it after staying up two nights.
"I took a look at it, including the questions you don't know. Your trigonometric function is very poor. It can be said that you have no introduction at all."
"I'm too stupid! I can't understand it at all." Song Chunlin said with shame.
Xu San squeezed his head hard, and after a while he said slowly: "Trigonometric functions are functions, with quadrant symbol coordinates. The function image is the unit circle, and the odd-even period increases and decreases..."
After saying the first four sentences, Xu San saw the two students beside him looking at him eagerly like good babies.
"Damn it, why are you looking at me? Remember! I might forget it after I finish saying this. Hurry, hurry..." Xu San hated the iron and roared at these two unsatisfactory things.
"Oh, okay." The two students didn't waste any time. They quickly took out pens and paper and began to record Xu San's next words.
After Xu San slowly finished reciting a set of formulas and theorem memorization formulas, the two students also stopped writing in their hands. It seemed that they had finished memorizing them.
The hand speed is good, so you don’t have to worry about it twice.
Although this is not a problem-solving process, this set of formulas is something that high school mathematics teachers are obsessed with and must be taught.
As the essence summarized by later generations of teachers, Xu San believes that it should have some effect on education in this era. He hopes that these two students can tell their teachers this mantra so that it can be spread.
As for the fact that the two of them were in a Japanese school, he didn't really care. As long as they had a sense of patriotism, it was enough.
"Have you finished remembering it?"
"I've finished memorizing it!" the two students replied in unison.
"Get out of here as soon as you finish remembering. Don't bother Sister Hua to drink with me. Do you know how difficult it is for me to take a vacation? The rare time to be intimate with Sister Hua has been wasted by you two idiots." Xu San said, waving his wrist. He asked the two of them to leave quickly, and then put his hands on Sister Hua's slender waist to show affection.
The two students wanted to say something else, but when they saw Xu San, the other one had already taken out his gun.
So they quickly put away their papers and straw paper, put on their schoolbags and fled from Sister Hua's yard.
Before leaving, I didn't forget to look at Xu San and thought to myself, this person's face changes at every turn. When he was reciting the incantation just now, he was a good example to others, but why did he become so evil in the next moment?
Look at Sister Hua again, she is still so enchanting and charming.
Alas, what the old man said is indeed true, women are all tigers.
Looking at the two people leaving, Xu San breathed out quietly, "Hey, I'm finally gone." He turned to look at Sister Hua, "I'm sorry for delaying your business."
"Knowing that it's delaying business, why don't you hand over all your little yellow croakers quickly to make up for our losses." Xiao Hong, who was watching the excitement on the side, immediately started to cheer.
"I think you are too late to clean up. I should leave you with some homework."
Xiao Hong looked at Xu San teasingly: "Do you know how to send a message? Do you know how to change plain text into cipher text, and how to change cipher text into plain text? Hehe, if you don't understand, you won't know even if I'm talking nonsense."
"I don't understand, but your little boyfriend does."
"He's in Datong! He doesn't have time to take care of me. Haha~" Xiao Hong smiled wildly, which made Sister Hua just shake her head, feeling that the child was too old to be taken care of.
"Do you know what the male-to-female ratio is in the second subject?" Xu San suddenly asked.
"How much?" Xiaohong asked warily.
"About 1:8, that is to say, among the nine people, there is one male gay and eight female gays. It can be said that the male gays in the second department are like living in a country of daughters." Xu San started to talk nonsense and scaremongering.
After listening to Xu San's words, Xiao Hong moved slightly and frowned. She seemed to see Lin Dong wearing headphones and working selflessly among the warblers and swallows. Then a heroic female soldier in military uniform walked away. He came over and handed over a message. Lin Dong answered the message. Then the female warrior took this opportunity to touch Lin Dong's little hand and took advantage of him.
So, the more Xiao Hong thought about it, the more she thought about it. Gradually, the thoughts in her little head began to go wrong and headed in an unhealthy direction.
Finally, she couldn't help but her eye circles began to turn red, and she said fiercely to Xu San: "Ah~ you are lying!"
"Why are you lying to me? The second subject is quite special, so there are mostly women who are meticulous." Xu San continued to talk nonsense seriously.
Xiaohong pursed her lips, and a tear fell from the corner of her eye.
Seeing Xiaohong like this, Xu San quickly said: "Okay, okay, I'm lying to you. It's not that exaggerated, but there are indeed more female comrades in the second department. You can recall that I studied at the same time as you Are there more female comrades among the students who send reports?"
Xiaohong sniffed, held back her tears, and thought about it for a moment. Xu San was indeed right, but it was not as exaggerated as Xu San's 1:8.
Xu San could see the relationship between Xiaohong and Lin Dong as early as the first time they met.
I say this this time out of love for my subordinates and out of understanding of human nature.
After all, we have seen a lot of bloody scenes in later generations, so Xu San still reminded Xiao Hong, "I want you to have a sense of crisis. Don't indulge yourself. If you fall behind, you will be beaten! Then a good man will be snatched away by another woman. Well, don’t blame me, the leader, for not reminding you.”
"Why am I lagging behind?" Xiao Hong glanced down at her figure, and then touched her little face.
"I'm talking about professional knowledge and skills! Not face and figure." Xu San said with an irony.
"I'm a woman. If I don't compare to these, what should I compare to?" Xiao Hong already understood the meaning of Xu San's words, but now she still refused to admit it.
"Comrade Xiaohong, should we keep our attitude in check?"
"I'm very upright!" Xiao Hong said harshly.
Because the identity of the two was so different, Xu San wanted to say that they were not suitable, but he didn't know how to say this. In the end, he could only hope that the long-distance relationship would become dull as time went by.
Damn, the family is worried about the little girl’s studies; here they have to worry about Xiaohong’s love issues. Xu San feels miserable. They say that time travel is about enjoying blessings, but he still feels that he is here to suffer through time travel. Of.
Looking at Xiao Hong, Xu San said: "Although I don't know encryption and decryption, I am your leader and I can assign tasks to you!"
"Make sure to complete the task!" When it came to the task, Xiaohong still put away her playful attitude.
"That's right, this is the attitude that Eighth Route Army soldiers should have. My task is very simple, which is to become familiar with your message sending and receiving business. Also, prepare a few more code books for backup."
Xiaohong blinked and thought it was very simple, but which codebook should I use?
Xu San looked at Sister Hua and took out a few pages of paper from her bag, "Sister Hua, these are Japanese katakana and hiragana, and there are about a hundred common words. I have phonetic notations for these, but this phonetic notation may not be the same. Standard, there's nothing we can do about it. I can't write some Chinese characters with pronunciation, so let's just make do with it for now. After my job is adjusted for a period of time, I will have more time. By then, I will guide you. .”
"Okay, no problem! I promise to complete the task." Sister Hua agreed, feeling very happy. He did not expect that Xu San actually planned to teach them Japanese in person.
"Leader, is there any important task for you to teach us Japanese?" Xiaohong asked.
"Not yet. It's always more convenient to know Japanese. Especially for you, if you want to get back to your sweetheart as soon as possible, you'd better learn it as soon as possible."
"Ah, boss, you don't want me anymore?" Xiaohong's eyes were filled with tears, as if she was about to cry.
"Yes, yes, don't do this to me, Third Master, I won't eat it!"
Sister Hua walked up behind Xiaohong, leaned over and said in her ear: "Boss, this is all for your own good. Don't be so petty. What we did in Qingfeng Building won't work on him."
"When you have learned enough, I will apply to transfer you out of Ping An City." Xu San continued.
"Leaving Ping An, where are you going?" Sister Hua asked.
"The back, a safe place."
"But if I leave, who will take over my job?" Xiaohong was a little embarrassed. She and Sister Hua didn't want to go to the rear because it was inconsistent with their original intentions.
"Sending a report is not difficult. I want to learn and I can learn it quickly, so I can take your place. In fact... I don't want you to show up in public, so I came up with this idea. Although this kind of place is An ideal place to gather information, but..."
This is the voice of Xu San.
The cruelty and violence of the Japanese forces forced Xu San to consider that if he died in a crisis, he would be lucky, but if he was caught, the consequences would be unthinkable for Xu San.
And even if there are no Japs, there will always be some crazy people in a place like Fireworks Alley, and they don't care whether you are a good person or not.
