The audience was silent, with needles audible.

Especially for the boy who mocked Tang Mingyang with illustrations, his smile awkwardly solidified in the air, and his face seemed to be hot as being slapped by someone.

Fortunately, Tang Mingyang didn't care about him. He lifted the agrimony, and explained lightly: "you all think it is ophiuros exaltatus, however, in fact, it's not wrong. But the ophiuros exaltatus with a history of more than ten years has been regarded as low-grade spirit grass, with sunflower-water negative character. It can neutralize many potent medicinal materials and is often used in the preparation of low-level elixirs. Therefore, alchemists like to distinguish it from the ophiuros exaltatus, and call it agrimony. As for the reason to identify it, it is very simple. "

Tang Mingyang gently stroked the agrimony in his hands, and the stems and leaves were gathered up. In the golden sunlight in the morning, it was slightly phosphorescent, and it really looked like a long blue tooth.

He shook his hand gently, and said, "Gently shake. If its stems and leaves are loosened and weakened, it proves that the time is not enough, and the snake's tail will not become a dragon tooth."

The students in the room listened to Tang Mingyang's simple and clear explanation. They all nodded, and looked at Liu Xuefei at the same time with their eyes full of the meaning of verification.

Liu Xuefei was also surprised. It turned out that there was such a simple way of identifying between agrimony and ophiuros exaltatus. She also nodded and suffered taught. In fact, she also needed to use a elixir needle to measure its medicinal properties to recognize the age of the two plants.

But when she saw the eyes of the students asking her for proof, she soon found something was wrong. She clearly wanted to give the testis a color. How did she nod her head and "be taught"?

Moreover, what did he mean by "sunflower-water negative character"? Was it really neutralizing potent herbs?

She only knew that when refining qi-boosting powder, qi-distributing elixir, pulse-transfer elixir, a small amount of agrimony was needed. But she did not know the reason. Anyway, now that elixir prescription wrote in this way, she never thought about it in this respect.

"Teacher, what does it mean with sunflower-water negative character?" A sensitive and studious student asked on the spot.

"This......"

Liu Xuefei froze on the spot.

But in the eyes of all students with curiosity, she could not help but answer the alchemy knowledge that even Tang Mingyang knew, but she did not know as a teacher. She was so shamed of that.

Suddenly, she glanced at the slightly awakened smile in the corner of Tang Mingyang 's mouth, seeming that he was ridiculing her. So she suddenly was extremely angry.

Damn testis!

"Tang Mingyang, please explain to your classmates what is the sunflower-water negative character!" Liu Xuefei snorted, just using her anger to cover up her guilty conscience because she could not answer the question, and at the same time, she could skillfully kick the question to Tang Mingyang to answer.

"Teacher, is this the second question?" Tang Mingyang asked with a smile.

"Why not? I don't know which alchemy book from which you happened to learn some partial knowledge it is. Do you want to show off now?" Liu Xuefei sneered.

That was right! That was right!

The alchemy knowledge was as vast as a sea of smoke. It was normal for her not to understand it as there was still some cold knowledge. But what was there to feel guilty?

Perhaps this "sunflower-water negative character" was a theory which was set by an unknown alchemist and not recognized by the alchemy world, and happened to be regarded as truth by a layman like Tang Mingyang who had no discerning vision.

That was right! It was possible!

Thinking of this, Liu Xuefei felt that her momentum was gradually returning.

"Partial knowledge?"

It seemed that the alchemy of the Heavenly Warrior Subcontinent really had fallen into decay. As a one-star alchemist, this chick didn't even know the most basic alchemy knowledge.

Tang Mingyang did not dismantle Liu Xuefei 's ignorance and explained with a smile: "The world is divided into yin and yang, and the five elements are evolved. Everything in the world is hidden in the path of the five elements, and they are mutually compatible. It is the same as alchemy. The elixir is divided into yin and yang, and the five elements are combined. These elixir would mix together when there was an interpromoting relation between different properties of elixir. On the contrary, they would be mutually exclusive when there was restriction. In the five elements of Yin and Yang, the nature of the five elements is subdivided by heavenly stems, and the time of the five elements is defined by earthly branches. The sunflower-water negative character means that this agrimony contains a lot of water-based medicinal gas of sunflower defined by heavenly stems."

Tang Mingyang said in just a few words, and had already clearly explained the essence of alchemy.

The students under the stage seemed to understand.

"Teacher, is it right like this?"

"This......"

Liu Xuefei listened to this theory with a refreshing surprise.

She really wanted to say that Tang Mingyang was talking nonsense, but what the testis said was about the yin and yang, the five elements, heavenly stems, and earthly branches, as well as interpromoting relation and restriction. At first glance, it seemed to be reasonable, and still could stand up to scrutiny when she pondered for a while.

"Which book did you read these theories from?" Liu Xuefei ignored students' questions and asked Tang Mingyang instead.

"Which book? I have forgotten. But these are the most basic alchemy knowledge, and it will be recorded in any of alchemy books." Tang Mingyang said casually.

"Forget?"

Liu Xuefei's face sank!

Fuck the common sense!

Fuck the record in any of alchemy books!

As a majestic one-star alchemy master, she had never heard of it. Her grandfather was one of the three major four-star alchemy masters of Chu. In the library, there were many precious collections of alchemy books, but she had never read this theory.

He must neglect to say it on purpose.

He deliberately picked up the unknown alchemy from one book she never found out. The alchemy theory she had never heard of made her embarrassed in front of the students.

Good you Tang Mingyang !

Tang Mingyang glanced at Liu Xuefei. The chick had a face with a grudging face and gritted her teeth, but it was another charm when the beauty was angry.

In fact, he was telling the truth. The principle of Yin and Yang, the five elements of the alchemy, and the principle of heavenly stems and earthly branches were really just common sense in the world of Heaven and Earth.

But even it was the common sense, it was another thing to be able to do it.

Even if he was noble as a Life-and-Death Elixir Emperor, he couldn't fully grasp the pharmacology of the Yin and Yang and the five elements of any medicinal plant.

"Ha, teacher, it doesn't matter if you don't understand these things. In fact, you have already practiced wooden alchemy according to the principle of incompatibility."

Tang Mingyang quickly explained and wanted to ease the atmosphere.

This chick didn't know but still pretended, which was already on the verge of running away.

"Who said I don't understand?" Liu Xuefei's phoenix eyes were very murderous, and the jade hand hidden in the sleeve of the sleeve had already been squeezed.

"Ah, of course, you understand. You are our teacher, you absolutely understand." Tang Mingyang did not care about this chick.

"Humph!" Liu Xuefei snorted softly, only feeling that her dignity was fiercely trampled by the testis.

"Teacher, what is wooden alchemy?"

There were also sensitive and studious students who just hit a nerve.

Liu Xuefei's thoughts on killing were all there. She usually asked them to ask questions in class, why couldn't they be so enthusiastic?

The male student in question only felt that Teacher Liu's murderousness was overwhelming, which scared him to hurry to clamp his testis with his legs. Panicked in his heart, he thought to himself: I just took a peek at Teacher Liu's ass. Was it ... found? The "testis" was over! The "testis" was over!

The classroom was quiet under Liu Xuefei's murderous eyes.

But everyone thought that Mr. Liu could not have Tang Mingyang stumped with the two questions so as to be angrier and angrier.

"You explain to this classmate, what is wooden alchemy, and how can you tell that I used wooden alchemy?"

Liu Xuefei looked at Tang Mingyang with hatred, but she didn't find out that her mentality at this time was beyond just tickling, but also a layer of knowledge. Because she would also like to hear what was wooden alchemy.

Tang Mingyang did not dismantle the platform. He picked up another medicinal material in his hand and continued to explain: "This lion-tailed grass is rich in the scent of sunflower and belongs to the nature of the heavenly stems. According to the path of the five elements, water can product wood, so the medicinal gas they emit will blend together and will have a medicinal reaction when the ophiuros exaltatus and the lion-tailed grass are put together. It is also known as the wooden effect. This is the simplest wooden alchemy."

"Is this wooden alchemy? Teacher, is it right like this?"

Tang Mingyang made it as simple and straightforward as possible, but wooden alchemy was a very subversive theory for students who had never been in contact with it. Putting two herbs together was alchemy. Who were you lying to? Many students on the spot frowned, expressing suspicion.

Even Liu Xuefei, who was a one-star alchemist, did not believe in this ridiculous theory of wooden alchemy, and coldly questioned: "Tang Mingyang , do you treat us as a fool? Where is the elixir? If you can't explain it in detail, you just wait for watching how I clean up you just because you have no commander and roar in the classroom!"

Liu Xuefei said bitterly as this asshole continued to speak of the alchemy knowledge she did not understand, which made her very frustrated. The classmates asked her for proof, but she could not answer. Not only she was faceless, but also her self-esteem was trampled by the asshole Tang Mingyang once again when she could not answer these questions every time.

Even Teacher Liu questioned Tang Mingyang , and the classmates asked the question more loudly.

"Yes! Tang Mingyang , where is the elixir?"

"The two herbs are put together to make alchemy. Who wouldn't? The pig can become an alchemy master!"

Tang Mingyang still didn't take it seriously. He gently touched his belly with his hand and smiled, "the elixir, is actually in my belly."

As soon as the words came out, they burst into laugh again in the whole classroom.

"Is the elixir in your stomach? Tang Mingyang , I think your boast is getting bigger and bigger."

"When did you take the elixir? How to make wooden alchemy? It's very serious. Almost deceived by you guy!"

"Mr. Liu, this person roars in the classroom, without respecting the teacher. You have to deal with his crimes."

The one who laughed loudly most obviously was the boy sitting in the front row who had just shown the illustrations of ophiuros exaltatus to Tang Mingyang .

However, in the chaotic classroom, only one person did not laugh. That was Liu Xuefei.

Instead of laughing, she looked very serious.

Because she thought of the elixir prescription, and vaguely felt that what Tang Mingyang said might be true.

She originally wanted to give Tang Mingyang a lesson, so the agrimony and lion-tailed grass that she took out for evaluation were actually a trap.

On these two herbs, she had already coated with the flower liquid of the conch flower. Putting the three together would have a magical effect. If the boy inhaled in large amounts, it would have the effect of passing through the veins, but there were one side effect which was "testis pain" for a while.

This was exactly the method she used to punish those students who disrespected her in class.

And she had learned this method from the ancient elixir prescription collected by her grandfather. She remembered this which was written in the end of elixir prescription: elixir Qi entered the body, and elixirs were in the belly!

At the moment, Tang Mingyang said that elixirs were in his stomach, didn't it coincide with what the elixir prescription said?

Liu Xuefei looked at Tang Mingyang suddenly. Was this a coincidence, or did he see through everything long ago?

Was this wooden alchemy?

"Keep quiet!"

Liu Xuefei snorted coldly, and then stared at Tang Mingyang with unprecedented seriousness, saying one by one: "You explain to me, why is the elixir in your stomach!"