"Hey, have you heard, we have a new professor in our department, but he's young. ”

"I've heard about it, I've heard it, I saw it this morning, he was next to Professor Li and there was a female teaching assistant, and that professor was so handsome. ”

"Female teaching assistant? ”

"What a girlfriend, that woman has a sign on her chest, and the sign says that she is a teaching assistant. ”

"I said you girls are not idle. A new young professor is looking at you and you're happy. A boy rolled his eyes in disdain when he heard the girls' conversation, and said with disdain.

"Cut, Chen Xiaodong, you are still laughing at us, I didn't know who it was at the beginning, but when I saw Professor Bai Tingting, my eyes lit up. ”

A girl heard Chen Xiaodong rolling her eyes and laughing at them, so she opened her mouth to tease Chen Xiaodong.

"Hahaha, yes, yes, Chen Xiaodong, I heard your roommate say that you almost confessed to others. ”

"Who knew that the roses were all bought, hahahaha, Professor Bai's boyfriend appeared in our school and personally came to pick up Professor Bai to and from work. ”

The other girl added.

Chen Xiaodong's cheeks were flushed by what the girls said, and he pretended to be angry and shook his hand at the girls in front of him and scolded him.

"Just a few of you are the most annoying, I guess I won't be able to get married in this life, single dog. ”

After finishing speaking, Chen Xiaodong directly turned around and returned to his seat and sat down, took out a children's book from the drawer of the table, covered his face, and pretended to read.

"Look, he's still embarrassed by what we said, haha. ”

A girl pointed to Chen Xiaodong, who was pretending to read a book not far away, and said to the other girls while laughing.

"Everyone, be quiet, let's start class. ”

At this time, Li Chunhong took Lin Xiaozhi and Zhou Wan'er into the classroom from outside the classroom and stood on the podium.

Li Chunhong knocked on the table in front of him with his hand, and the originally noisy and complicated classroom immediately became quiet, and Lin Xiaozhi only felt that there were many pairs of fiery eyes staring at him.

"Isn't he the young professor you talked about earlier? ”

"Yes, yes, that's him. ”

The woman next to her was supposed to be his teaching assistant. ”

The girls were whispering underneath, Chen Xiaodong snorted coldly, looked at Lin Xiaozhi with scrutinizing eyes, and complained in his heart.

Damn, what are you doing! So young? It looks like you're not a year or two older than yourself and you're going to be a professor?

With his lack of social experience, he can still teach students to identify antiques and jade?

Lin Xiaozhi felt a trace of not very kind eyes among the students, raised his head and glanced in that direction, just in front of Chen Xiaodong's eyes.

Chen Xiaodong saw that Lin Xiaozhi noticed him, immediately lowered his head, covered his face with a book, and quietly looked at Lin Xiaozhi on the stage, only to see Lin Xiaozhi nodding at him with a smile to say hello.

Chen Xiaodong rolled his eyes disdainfully, put down the book directly, cocked Erlang's legs, kept shaking his head, and his face was full of provocation and disdain for Lin Xiaozhi.

Lin Xiaozhi tilted his head a little helplessly, what is the matter with this young man, it seems that he has never seen him, why does he look disdainful of his full malice.

How did Lin Xiaozhi know that Chen Xiaodong was envious of the praise of the girls when he didn't come before.

"Let me introduce to you, this is the professor Lin Xiaozhi who I invited from the outside to identify jade, don't look at him young, in this circle of jade identification, our Professor Lin is one of the best figures. ”

Li Chunhong introduced Lin Xiaozhi to the students on it.

Teacher Li lifted up. Lin Xiaozhi nodded with a smile, and then introduced himself to the students in the audience: "Hello everyone, I am Lin Xiaozhi From today on, I will explain your jade identification course to you." ”

"Okay, Xiaozhi, you go to class, I won't bother you. ”

Li Chunhong patted Lin Xiaozhi's shoulder with a smile as she spoke, then nodded at Zhou Wan'er on the side to say hello, turned around and left the classroom with a smile, leaving the classroom to Lin Xiaozhi and Zhou Wan'er.

"Alright, students, let's get to class. ”

After Lin Xiaozhi saw Li Chunhong leave, he set his eyes on the students sitting under the stage in front of him.

"First of all, I want to talk about several methods of identifying jade, and I believe that all of you have heard of it as students of the School of Archaeology. ”

Lin Xiaozhi nodded to Zhou Wan'er on the side as he spoke, and Zhou Wan'er immediately pointed out the method of identifying jade on the LED screen.

"Jade is a beautiful ore. It is also a kind of stone, fine and hard, shiny, slightly transparent, and can be carved into handicrafts: jade, jade, jade seal. ”

"In a broad sense, jade also includes colored stones, that is, the so-called fake jade, including white marble, Beijing white jade, etc. In addition, jade in a broad sense also includes diamonds, agate, crystal, amber, turquoise, coral, pearls and other gemstones. ”

"With the development of human craftsmanship, the number of fake jade on the market has gradually increased, so as students of the School of Archaeology, we must learn how to quickly and accurately identify the authenticity of jade. ”

"In fact, the method of identifying jade is very simple, and the general and firm method of identifying jade jewelry should be seen from the aspects of hardness, transparency, color, brilliance and whether there are spots. ”

"Real jade is very hard, hard-wearing, crystal clear, pure in color and sparkling. If you can see that there are cracks, cotton fiber-like cotton lines, or dark wounds on the inside of the jade, it is inferior jade. ”

"All fake jade, with wrinkles on the surface and bubbles inside, is light in weight, has little hardness, and has a crisp sound when knocking each other. ”

"Agate is a rare and precious thing, and there are many fakes on the market, most of which are made of refined pine resin and powdered glass crushed. To identify the authenticity, it must be rubbed in the palm of the hand, and the color, shape, and smell of the product are genuine......"

Just when Lin Xiaozhi was standing on the podium and talking, Li Xiaodong, who was sitting in the audience and listening to the lecture, suddenly raised his hand.

Lin Xiaozhi glanced at Li Xiaodong and recognized him as the classmate who was unkind to him when he first came before.

Lin Xiaozhi made a gesture of invitation to Li Xiaodong, and then asked, "This classmate, do you have any questions about raising your hand and want to speak?"