Zhang Nan finished exchanging the steam engine model, but did not sit idle, but continued to bite the pencil head, and began to think about how his heavenly ministry should be built. But in the end, Zhang Nan didn't figure out how to build this. Soon Zhang Nan gave up, anyway, the land in Qinling has not been opened yet, so why should he be in a hurry? Maybe after two days, I'll have an idea.

Zhang Nan is not a person who will be difficult for himself, generally speaking, Zhang Nan will never stand up for things that can be done while sitting, and Zhang Nan will definitely not sit for things that can be done lying down.

Thinking of this, Zhang Nan went to sleep peacefully.

Early the next morning, Zhang Nan participated in Li Er's morning dynasty as usual, and today's morning dynasty surprised Zhang Nan that Li Er sat on the dragon chair and yawned, and Zhang Nan had no way to associate this mental state with a good place.

However, Zhang Nan thought about what happened yesterday again, and Zhang Nan guessed that Li Er might have stayed up all night practicing mahjong skills, after all, he lost his dad yesterday and even had to be a pants man, Li Er must have to practice hard and find the field another day, but this is just Zhang Nan's guess.

Things are still those things, but Du He has been appointed by Li Erxuan today to take over the position of Zhang Nan's director of the Labor Reform Bureau, Zhang Nan looked at Du He's expression of finally having a long drought and nectar, and couldn't help but feel a burst of amusement.

However, what Zhang Nan didn't expect was that Li Er announced at today's morning court that from now on, his knighthood level would go up another level.

"Could it be that Li Er's conscience found out?" Zhang Nan thought suspiciously, but since Li Er had promoted himself to the title, he still had to express his gratitude to Li Er, so Zhang Nan gave his hand to thank him.

After getting out of the court, Zhang Nan walked to Du He's side and said, "Okay, Qinglian, now she is finally an official of the imperial court." ”

Du He smiled and arched his hand to Zhang Nan and said, "It's all the master's teaching, the apprentice hasn't thanked the master well for the last time my father's matter." ”

"Okay, let's not talk about this matter, by the way, how is Lord Du's health recently." Zhang Nan asked.

"My father's health has improved a lot, and my mother has been strictly controlling my father's diet, and she stays by my father's side almost every inch, for fear that my father will run to deal with official business if he doesn't pay attention." Du He smiled.

"Dealing with official business? Didn't he have no work to do? Zhang Nan said strangely, now that Du Ruhui is at home, where is there any official business that he needs to deal with.

"Alas, even if my father doesn't care about things now, he still wants to do more things for the emperor, and now he has been studying the five-year plan for steel that Master said, hoping to work out a few more plans in the same way."

Zhang Nan nodded noncommittally, Du Ruhui is simply a workaholic, if it is put in the future, it will definitely be an employee that every boss rushes to want.

"Okay, go back and tell your father to pay more attention to his body, and if the medicine runs out, you can come to me."

"The apprentice thanked the master first."

"Thank you, no thanks, you can order a thousand Turkic captives for me later, I will go to Qinling to open the land, you prepare it for me first." Zhang Nan said.

After Du He nodded in agreement, Zhang Nan came to Yuan Tiangang's Taishi Bureau to see if there were any results from the middle school chemistry research after a day.

As soon as he entered the door, Zhang Nan didn't see Yuan Tiangang and Li Chunfeng, Zhang Nan had to shout in the hall: "Is there anyone, someone is gasping for breath, don't you want to entertain someone here?" ”

Before Zhang Nan's words fell, Li Chunfeng opened the curtain and walked out from the back room, Zhang Nan looked at it and was startled, is this still the radiant Li Chunfeng? How it feels like being sucked into the soul.

In fact, I don't complain about Zhang Nan for thinking so, mainly because Li Chunfeng now has a pair of blood-red eyes and two big eye bags, and it is really difficult to connect him with the previous Li Chunfeng.

"Was it right or wrong for me to give them that chemistry book?" Zhang Nan tortured himself in his heart.

"Master Zhang, you're here." Li Chunfeng saw that Zhang Nan had arrived, and immediately looked like he had met his relatives, which made Zhang Nan a little confused, when did he have such a good relationship with Li Chunfeng?

As soon as he heard Li Chunfeng say that Zhang Nan was coming, there was a clanging sound in the room, and then Yuan Tiangang also opened the curtain and walked out.

As soon as Yuan Tiangang looked at Zhang Nan, he immediately went up and asked, "Qingquan, I won't go around in circles, who is the one you wrote in the chemistry book you gave me?" ”

Zhang Nan thought about it, and had no choice but to say: "Of course, it was recorded by our ancestors who passed through a sect. ”

Yuan Tiangang nodded and continued: "I understand the truth, the old Taoist about air experiments in it also tried to do it with Chunfeng yesterday, and the result is not at all different from what is recorded in the book. ”

After Zhang Nan heard this, his face was speechless. "Nonsense, if I find a different place for you, then I won't have to take chemistry classes in the future."

"It's just that Lao Dao still doesn't understand some things." Yuan Tiangang said.

"Oh? Where does the Taoist not understand? You can say it, as long as the kid knows, he must know everything. Zhang Nan smiled, although chemistry was the worst among his three science subjects, but Zhang Nan felt that he could still solve the problem in the ninth grade.

"Why does oxygen have to be recorded in a circle? And which hydrogen, why is there a horizontal bar in the middle of the two vertical sticks? It doesn't look like a word, and the painting doesn't look like a painting. Yuan Tiangang asked.

"Well, Yuan Daochang just needs to understand this as a record symbol, in the language of chemistry, oxygen is a circle, and hydrogen is two vertical sticks with a horizontal in the middle." Zhang Nan said with a smile, but while Zhang Nan was laughing, he still admired the acceptance and learning ability of the two people, after all, they could understand so many things in one day, and by the way, they also did an experiment, which is enough to prove that the learning ability of the two is not covered.

Yuan Tiangang listened to Zhang Nan's explanation, nodded, and suddenly, Yuan Tiangang arched his hand at Zhang Nan as if he had thought of something, Zhang Nan looked at Yuan Tiangang like this, and knew that Yuan Tiangang didn't hold back his fart.

"Stop, stop, Dao Chief, why are you giving it to me for no reason." Zhang Nan hurriedly said.

"Qingquan, the old Tao has something to ask for." Yuan Tiangang said with a straight face.

"You don't want to apprentice with me, do you?" Zhang Nan asked with a strange expression.

"How do you know?" Yuan Tiangang looked surprised.

"Why are you Tang people addicted to apprenticeship, and why do you want to apprentice when you see something new?" Zhang Nan complained fiercely in his heart.