"Kong Xing, do you know what the traces of time are?" Xiang Yang asked Kong Xing.

Kong Xing thought carefully for a while, and said with some uncertainty: "Is it history?"

"That's right. Xiang Yang nodded, "It's history." ”

"One of the courses in our archaeology major is to identify the age, one of which is based on the material or workmanship, and the other is to look at the traces left by the years. ”

"Some things can be imitated, but the real years are different from those imitations. ”

He said as he reached out and held up a few examples, "First of all, the years of dirt and stones. Over time, the soil will gradually harden to the point of pseudo-stones, but if you squeeze the two together, the stones will still be harder. ”

"The second is the stones, which will corrode to varying degrees over time. Of course, the degree of this corrosion is quite low. The second is the change of color, the same stone, wet and dry are also uneven, so there will be a variety of colors on it. ”

Kong Xing nodded half-knowingly, "Then what does this have to do with the original stone?"

Xiang Yang could only patiently talk to Kong Xing, "The reason why the jade species are different between the original stones is because their inner whole is different, the inner whole is different, and when they are heated, the heat is also different. ”

In other words, we can tell if there will be jade in it based on the year we look at the stone. ”

Listening to Xiang Yang's words, Kong Xing was not only a little puzzled, "Since it was formed by the instantaneous high temperature, then their appearance should have changed, right?

Xiang Yang nodded, "You're right. ”

"But this brings us to another problem, which is like making a fake. Xiang Yang said and reached out and patted Kong Xing's shoulder, "I won't talk about the details, you will understand sooner or later in the future." ”

"It's not too early, let's go to self-study. Xiang Yang said to Kong Xing.

When the two arrived at the classroom, they found that the classmates in the classroom were already handing out textbooks, so the two of them hurriedly sat down on the two empty seats and sorted out their books.

The homeroom teacher for this evening self-study is also there.,And this homeroom teacher is the same teacher who reported at that time before.。

"Students, your textbooks will be sent out today, and after everyone has sorted out the textbooks, I will arrange for everyone to arrange seats, and in the future, I will follow my schedule for class. ”

Kong Xing was lucky that he was still with Xiang Yang, but this was also due to the fact that they were about the same height.

The location was settled that night, and after that, everyone except for the textbooks for the public classes was left there except for the dormitory.

"Classes will officially start tomorrow, I'm looking forward to it!" Kong Xing couldn't help but be a little excited on the way back.

"That's tomorrow, let's finish what we need to do today. Xiang Yang said and pulled Kong Xing to the playground, "Is there a problem with running 800 meters in three minutes?"

Kong Xing turned his head to look at him, "Uniform speed?"

"Hmm. Xiang Yang nodded, "It's best to have a constant speed, that way the effect is best." ”

After the two of them made a decision, they ran their own ways, although both of them ran well, but as time went by, the gap gradually came out.

Although the limit set by the two was three minutes, both of them ran there in their best condition, after all, it would not be effective to improve without doing so.

In the end, when Kong Xing finished running, Xiang Yang had already left the playground and was walking slowly outside the playground.

Rushing to Xiang Yang's side, Kong Xing said to him in a calm tone: "Your speed is also fast, aren't you tired?"

"I'm tired. Xiang Yang said casually, "But I'm used to it." ”

Kong Xing secretly gave him a thumbs up, "There's nothing wrong with it." ”

After the two returned to the dormitory, they finished washing up and fell asleep on the bed, and asked the other brothers to turn it off, regardless of the lights on.

It was more than five o'clock in the morning, and Xiang Yang just got up at this time.

"It's such a coincidence today, and the time to get up is about the same. Kong Xing said with a smile.

"Get dressed, it's time for us to go to morning practice. Xiang Yang said and went to the toilet, and then washed up again.

When they arrived on the playground, the two of them knew that they were not the only ones who were exercising in the morning, and there were also people on the playground who were running in twos and threes.

"I didn't expect it to be quite positive. Kong Xing couldn't help but quip.

Xiang Yang smiled slightly when he heard this, "The capital of the revolution of the body, they know the importance of the body, this is a good thing." ”

"Shall we also run laps first?" Kong Xing asked.

"Yes, run 800 meters first, and then do stretching. Xiang Yang said, already running ahead.

After the two of them finished the lap and did the stretching exercise, it was a push-up, a sit-up, or a pull-up. They exercised until half past six, and the two went to the cafeteria sweating profusely.

"Don't eat too well in the morning, the nutrition is enough, and the rest is filled with porridge. Xiang Yang preached to Kong Xing.

Kong Xing nodded, "Then I can drink one more bowl, I'm almost starving to death." ”

On the first day of class, most of the teachers recognized the students or introduced themselves, but the day passed quite quickly, and there was not much to do. The few subjects are overshadowed and have a limited amount of knowledge.

It's just that the normal school life, after three days, was broken by a person from Xiangyang's family.

On this day, they were in class, and then the head teacher went directly to the class, and Xiang Yang called him away. Since then, Kong Xing has not seen her back.

finally got through to the end of class, Kong Xing called Xiang Yang, "Xiang Yang, where have you been? Why haven't you come back?"

"Excuse me, brother, I might be leaving. ”

Kong Xing heard the reluctance in Xiang Yang's voice, and he couldn't help asking, "Why? Why did you leave all of a sudden?"

"There's something urgent in my family, let's see you again in the future. Xiang Yang hung up the phone after speaking.

Kong Xing was stunned and held his mobile phone, feeling bad for a while. The two are inseparable these days, although they are not brothers, but there is nothing to say about that relationship. But now he said he was leaving, and he didn't say goodbye to him.

Kong Xing thought about it and sent a text message to Xiangyang. It says, leave an address to contact, I have time to go over and look for you.

But no matter whether Xiang Yang saw the message or not, Kong Xing didn't wait for a reply after all.

Time passed day by day, Kong Xing continued to keep the things that Xiang Yang gave him, and his diet and rest were very good.

In a month's time, Kong Xing felt obvious results. The two abdominal muscles on the stomach became six, which was not obvious, but it was also beginning to take shape. It's just that every time he thinks of Xiang Yang, he can't stop feeling sad.