The Chinese Han is the oldest race on that planet, because this is the most resilient nation, no matter what kind of natural disasters, no matter what kind of oppression and aggression, he can stand up again, this is the tenacity engraved in the bones. The talent of this nation is not the strongest, and even a little weak, but it is this weakest talent, the "farming talent"! Supporting the foundation of China for all generations. Xu Chengtian didn't expect that he was lucky or unlucky, and came to this strange planet at the most depressed time in his life to teach the people here to farm!

It has been a few days since the pothos woke up, and although it has not fully recovered, it is now possible to carry out a simple restoration campaign under the care of the Houtu witch doctor and the witch doctor. On the day that the pothos woke up, the Houtu witch doctor saluted Xu Chengtian's respectful disciple, and abandoned everything he had, even his identity as a witch doctor of the Azure City tribe, and he must come to Xu Chengtian to be an attendant. After Emperor You and Xu Chengtian talked and persuaded each other, they promised to temporarily serve as the witch doctor of Azure City. This Azure City witch doctor position is actually the uncrowned king of the human race witch doctor, regarded as the first witch doctor.

"Since the Houtu Witch Doctor has already performed the disciple ceremony, you will be my disciple from today onwards!" Xu Chengtian said.

"Disciple?"

"It's the apprentice, the attendant is doing some chores, and the disciple is my student, really learning the technique. Call me Teacher from now on! ”

"Teacher, it's up! Please take the disciples and bow down! ”

"Teacher, teacher, not teacher!"

"The teacher is above, please take the disciples and bow down!"

......

Back in his bedroom, in front of a row of petri dishes, Xu Chengtian picked up a petri dish and said to the Houtu witch doctor: "Look, this is the penicillin culture liquid I made, the upper layer is a layer of fat-soluble substances, the middle layer is insoluble substances, the lower layer is water-soluble substances, penicillin is a water-soluble substance, so we just need to extract the water-soluble substances, this is my special petri dish, there is a small opening below, as soon as the gate is opened, the water-soluble substances below can flow out, and now you and the Snow Maiden will extract the water-soluble substances together." Then Xu Chengtian put on a mask and came to the petri dish on the other side, which was a petri dish of the patient's phlegm.

Xu Chengtian looked back, although the Houtu witch doctor was at a loss at first, but under the guidance of the Snow Girl, he quickly entered the regular process and began to work step by step. When Xuanmen came in with the boiled and sterilized toner, the Houtu Witch Doctor had also finished extracting and sorting it.

"Teacher, this mark of yours is really strange, it doesn't look like a mark of inheritance." The Houtu Witch Doctor pointed to the man carved with a knife on the petri dish and said.

Xu Chengtian: "I said something lightly, I will teach you later." "This is a simplified character, the text has been invented, evolved, evolved, transformed, etc., although this simplified character is suitable for itself, but it is not suitable for people in the ancient continent." Let's start with oracle bone inscriptions, hieroglyphs, and slowly teach them, hieroglyphs are easy to understand, and then slowly simplify, so that the writing can form a culture. Xu Chengtian thought. I haven't learned hieroglyphs, and when I transfused blood for pothos that day, my heart began to throb, and in the blood flowing in my body, countless memories began to recover, which was the unique memory of the Chinese nation, and it was the memory hidden in the blood of every Chinese nation.

Xu Chengtian took one of his utensils and put it into the boiled and sterilized toner, then added the filtered penicillin solution, stirred, and let the toner absorb penicillin, and then put the stirred toner into the container, add distilled water, wash out the impure substance, and then add the acidic water made of vinegar brewed by himself, "This part is penicillin purification, look good." Penicillin is a weak acid, but insoluble in weak acid, so you can wash off alkaline impurities, and then add alkaline soda, this alkaline soda is extracted from the sea vegetables you beat a few days ago, and then the penicillin is separated from the toner, and the lowest end is the purer penicillin. Under the control of Xuan Ming's spiritual power, the purified penicillin appeared in a separate vial.

Xu Chengtian picked up the bottle, poured it on top of three parts of bacterial culture medium, and then began to observe it with his polar eyes. "It's done! The germs have been dispelled! At this time, Xu Chengtian was left with a nosebleed, and he didn't care about it, just thought it was overused.

Everyone present looked at the culture medium, and circles appeared around the three parts of the medium.

"What is it?" Xu Chengtian asked.

"Door Master, it's Medium Forty-two." Snow Maiden said.

"Orange Huaibei Variant Family, cultivation temperature 38 degrees, humidity 90%!" Xu Chengtian looked at the record on the bamboo slip and read it, and then ordered: "Mass production immediately, this penicillin is effective!" ”

Penicillin was so effective that the disease was quickly suppressed, and some patients were relieved after a few days. Xu Seungtian started making vaccines again, first he collected the clothes worn by patients during their illness, and after high temperature sterilization, they were distributed to children who did not get sick. Subsequently, the rash on the patient's body was collected, the rash was dried and crushed, and then placed and blown into the nasal cavity of a normal person, both of which are the most primitive methods of making "inactivated vaccines", and they need to be developed in the future if they are more effective.

Xu Chengtian knew that he was not only the virus and microorganism on his body, but if he caused the mass extinction of human beings, he would not be able to live, let alone let someone help him pull the child out of the seal. Although the epidemic has improved on a large scale, Xu Chengtian has locked himself in his bedroom for the past few days to study this microorganism.

"Feeding on the proteins of carbon-based organisms, mitotic reproduction, mainly preferring the internal organs of carbon-based organisms to reproduce, causing organ dysfunction, there is no possibility of evolution in current observation." Xu Chengtian picked up the patient's saliva collected at the beginning, carefully compared the recent microbial status, and found no changes from beginning to end. At this time, Xu Chengtian left a nosebleed again, "It seems that I have been overusing my eyes recently, and I haven't heard that there will be side effects after using spiritual power or something for a long time." Xu Chengtian was still thinking about it, and suddenly someone outside the door shouted: "Witch Doctor Xu, Emperor Youdi is invited." ”

In the main hall, the Youdi sat on the main seat, and the witch doctors of the other tribes were also there, and there were many people who knew and didn't know.

"Witch Doctor Xu, you have made a contribution to the treatment of the epidemic, and this emperor is ready to reward you, do you have anything you want?" Emperor Yu said slowly.

"Your Majesty, there is only one thing to ask for in the future." Xu Chengtian said.

"Witch Doctor Xu, please speak!"

"The child is still in the Tianci Mine, and I want to ask Your Majesty to come to the rescue."

Emperor You was silenced by Xu Chengtian, shook his head and said: "This matter is beyond my strength, I'll help you calculate a hexagram!" See if there is anyone who has the power to save your child. ”

"Fortune telling?" Xu Chengtian thought to himself, "Last time, the Houtu Witch Doctor's jumping rope was also a miracle use, just look at this fortune telling, maybe you can learn something!" ”

Emperor You sprinkled a handful of bamboo chips forward, the bamboo chips did not fall to the ground, but were suspended in the air, Xu Chengtian felt that something was attracted on his body, but he couldn't tell what it was, it was a mysterious and mysterious feeling.

Seeing Xu Chengtian's doubts, the Houtu witch doctor said: "The teacher may not know much about fortune telling, but in fact, the main principle of fortune telling is to analyze the people, things, and items counted. Based on your own understanding, combined with the theories and cognitions of your predecessors, you will seek out what is likely to happen with a high probability from countless possibilities. For example, if you lose an object like an ordinary item, you can first understand the shape and weight of the item, where the item was originally located, or where it was dropped, and then analyze whether the item fell far or near, whether it fell at home or outside. The more advanced ones need to communicate with the ghosts and gods of the void, and according to the information given by the ghosts and gods of the void, that is, the hexagrams, they can analyze the answers of the ghosts and gods, the void creations, so as to get the answers they want. Like Emperor You, he asks the Dao of Heaven and Earth, and asks the Dao of Heaven directly, because the Dao of Heaven is omniscient and omniscient, omniscient and omnipotent, no matter the past, present, or future, the Dao of Heaven has been known, and the future of man seems to be innumerable from the outside, today we go out with our left foot first, go out with our right foot first, and what we are going to eat at noon, these will affect our future, but in the view of Tiandao, our future is a given. ”

Xu Chengtian thought thoughtfully: "It turned out to be scientific fortune telling. "Looking at the alternation of bamboo chips in the air, suddenly fixed in the air, some bamboo chips began to drift, like a mirage, as if the entity existed, and seemed to travel back and forth between the present world and the void, and slowly the bamboo chips turned into entities and returned to the hands of the Emperor.