When Chen Zhou woke up, the sunlight was shining on his face, which was a little dazzling.

He blocked it with his hand, and his eyes felt a little better.

Chen Zhou sat up, only to feel that his head was unusually heavy, he shook his head, trying to shake the grogginess out of his head.

It's just that this kind of attempt is useless at all, but I shake my head a little dizzy.

Chen Zhou instinctively raised his hand to see what time it was, but found that he didn't know where to put the watch.

I reached for the head of the bed, found my phone, and clicked on the screen.

10:46 a.m.

"Hmm, did I only sleep for more than two hours?" Chen Zhou glanced at it again, the time was indeed 10:46, yes.

While he was wondering, the door to the room opened.

Chen Xiaozheng walked in with a bowl, and when he saw Chen Zhou sitting up, his eyes instantly widened, one hand didn't know what he was pointing to, and the bowl in the other hand almost fell.

"What are you doing?" Chen Zhou was a little puzzled.

Chen Xiao didn't speak, and ran out in a hurry.

After a while, a large group of people poured into the room.

Chen Jianguo looked at Chen Zhou, who had an inexplicable face, and asked eagerly: "Xiaozhou, you... Are you alright?"

"It's okay, what's wrong?" As soon as the words came out, Chen Zhou realized something, and he looked at the expressions on everyone's faces again, almost all anxious and concerned.

He glanced at the mobile phone that was still on, and now he finally saw it, the date: the seventh day of the first lunar month!

"it! Labor and management slept for a day and a night, and there were two more hours?!"

"No wonder mom and dad..."Chen Zhou felt very sorry, and said hesitantly: "I'm sorry, dad, mom, I accidentally stayed up late... Overdone... You don't have to worry. And grandparents, I'm fine, don't worry..."

Zhang Hongying's eyes were filled with tears, looking at this guilty son, and muttering: "It's okay, it's okay..."

If she could choose again, she said that a hundred would not let Chen Zhou repeat it, who would have thought that reading would still be addictive?

Chen Jianguo wanted to say something, but he didn't say it.

They found Chen Zhou sleeping in bed at noon yesterday, and at first they thought that this kid had stayed up late reading and hadn't rested well, so they didn't call him and wanted him to sleep more.

Later, at night, they found that Chen Zhou was still asleep in bed, which was a little wrong.

But no matter how they shouted, Chen Zhou always slept very deeply.

When did Chen Jianguo encounter such a situation, he didn't dare to mess with Chen Zhou, for fear that if something went wrong, it would be even worse.

He hurriedly called Chen Zhou's uncle and uncle and called them all over to help think of a way.

Chen Jianguo didn't want to alarm Chen Zhou's grandparents, but his grandparents were at Uncle Chen Zhou's house and came over together.

A large family surrounded Chen Zhou, and they thought of all the ways they should think.

I looked for a doctor, and the doctor said that the vital signs were stable and there was nothing wrong, I don't know if it was some incurable disease, or a vegetative person or something...

I asked a friend, and my friend said, I've never seen anything like this, so I shouldn't be evil.

So, I hired another exorcist, but it didn't work.

There was no way, the people of the old Chen family dragged their friends to ask the doctor, while taking care of Chen Zhou, who was still sleeping.

As a result, before he could ask the reason, he waited until Chen Zhou woke up by himself.

Chen Zhou naturally understood what the situation was, but it was not easy to explain, so he said that the day and night of his study were reversed, in fact, he had secretly eaten snacks or something, but he didn't leave the house...

Of course, no matter how lame the reason is, it is better than no reason at all.

Chen Jianguo and they don't care what the reason is, seeing that Chen Zhou is safe and sound is the most important thing.

After you and I cared about it, seeing that Chen Zhou was really fine, the whole family withdrew from Chen Zhou's room again.

Zhang Hongying was busy and hurriedly made something to eat for her son, and the three brothers Chen Jianguo called the doctor and friends to say that Chen Zhou was fine, and they had been troubled in the past two days.

Looking at the backs of the family, Chen Zhou silently said in his heart: "I'm sorry, I really didn't mean to,..."

Then, lying down on the bed, Chen Zhou couldn't help but whisper: "It's really difficult, the effect of the medicine is too strong, and it lasts too long! Cultivating immortals is really not a human thing! I will resolutely not cultivate in the future, unless I am not at home... Think again..."

Chen Zhou remembered, he didn't know if he was in a coma, or before falling asleep, he seemed to hear the sound of the system.

He closed his eyes and his consciousness entered the system space.

I saw that the refreshed information on the display was still there.

"Congratulations to the host!"

"Complete the hidden quest, the abbreviation behind the question. ”

"Mission Description: The current high school knowledge is the foundation of the foundation, and the so-called function problems actually have easier methods. Please understand the Lagrangian median value theorem, Cauchy median value theorem and other related knowledge. ”

"Completion: The host has an understanding of the differential median theorem and a preliminary understanding of differential calculus. Among them, he has mastered the six differential median theorems and their proof processes, including Rohr's median value theorem, Lagrangian median value theorem, Cauchy median value theorem, Lopida's law, Dab's theorem, and Taylor's formula. The corresponding college entrance examination applications of the three differential median theorems of Lagrangian median theorem, Cauchy median theorem, and Lopida's law have also been mastered, and the college entrance examination applications of the other three theorems have a preliminary understanding. ”

"Time to completion: one month. ”

"Get the task reward: 1000 experience points in natural science or upgrade the wrong problem set (uniqueness). ”

"Please choose the task reward by the host. ”

As soon as Chen Zhou finished reading it, two "buttons" surfaced, respectively on [Natural Science Experience Value 1000] and [Upgrade Wrong Problem Set (Uniqueness)].

He was a little hesitant, and in the only information he had, he had already gained some experience points in the natural sciences.

It's just that these natural science experience points are not used now, and as for whether they will be useful in the future, he doesn't know yet.

And the wrong question set, I have seen it, just the feeling of two words, bull break!

And it's still not upgraded.,If it's an upgrade.,It should be a bull break plus.。

Of course, the premise is that this sand sculpture system is not pitted, which is the case.

Also, Chen Zhou, with his previous experience in playing games, generally the items with [uniqueness] behind him are extremely valuable, not to mention, they are still the only items that can be upgraded.

Moreover, the reward for the first time the hidden task is triggered in the wrong question set, and the upgrade opportunity is also given by the hidden task, and the trigger conditions of the hidden task are not known yet, which means that if you miss this village, there will be no such store.

Thinking of this, Chen Zhou decisively "pressed" the "button" on the [Upgrade Error Set (Uniqueness)].

Then, after waiting for a while, nothing happened.

After waiting a little longer, nothing has changed.

Chen Zhou withdrew from the system space and took out the error book from his backpack, his appearance did not change, and the content of the record did not change.

"Wouldn't it??!"

Chen Zhou put the problem set back in his backpack, closed his eyes again, and his consciousness entered the system space.

Reach out and click on the "backpack" pattern on the display, and click on the problem set lying inside.

I saw a string of explanatory text floating on it: Wrong question set (uniqueness, upgrade completion: 0%), which automatically records all the wrong questions in the host's current learning.

"???What do you mean by this?, you have to upgrade from 0?" Chen Zhou instantly felt cheated, this was four and a half cans of spiritual elixir in exchange!

If it is used to do questions, brush books, and impact the pre-task stage two, it doesn't... Is it fragrant?!