301.

After Xiao Shutong got on Cheng Li's thief ship, he was not ambiguous at all.

He gave all of his remaining 400 points of arithmetic energy to Cheng Li at once.

"Cheng Li, I gave you 4 hours of time flow rate change, so that according to the 20:1 time flow rate change, you can stay in the arithmetic monument for 80 hours, and the outside world has only passed 4 hours!"

Cheng Li felt that the surroundings were once again shrouded in an atmosphere of black light, and he felt that his time flow was as usual, but the black streamers around him were already reminding him that the time flow speed he was in was different from the outside world.

"It's 80 hours, so don't I have 6.6 days? That's great, with so much time, I'm sure I'll be able to finish the next generation of calculators! Maybe I'll have time to design a few new spells, and I'll have to prepare for the lesson, or I'll have to wait for tomorrow...... Oh no, this morning, I have to give a lesson to those students!"

Cheng Li thought about it for a while, and felt that he had a lot to do.

For a moment, he didn't feel how many 80 hours there were.

So, he began to hurry up and get to work.

Cheng Li first came to his Wanjie Library, and selected a few books related to mechanical design and industrial process from the currently open books to make up for it.

There are also a few books on CPU design that he has selected for viewing, although they are in the issue of permission, these books he selected are relatively early books, and they have not yet touched on the cutting-edge technology of the time when he traveled through the Dao.

But for Cheng Li at this time, it has reached the level of drawing inferences at will, so as long as he is given a little technical inspiration, he can make the rest of the deduction through his own mathematical level.

Thanks to this, Cheng Li's understanding of industrial design and CPU design is getting deeper and deeper, and Cheng Li has had experience in computer design and manufacturing before.

Cheng Li's time in the arithmetic monument, with his investment in learning and design, is passing quickly in Cheng Li's feelings.

In the outside world, due to the change in the flow rate of time, the time inside the monument passes even faster.

Four hours passed quickly.

When Cheng Li's figure reappeared in the cave, he didn't look like a spirited cultivator, but like a mortal who had been completely drained, his face was tired and haggard.

Although only four hours have passed in the outside world, a full 80 hours have passed for Cheng Li, that is, 6.6 days.

In these 6.6 days, Cheng Li has not closed his eyes at all, and has been in a state of high-intensity study and research design, Rao is now a cultivator in the foundation building period, and he also has a feeling that his body has been completely hollowed out.

"No, no, I need to sleep for a while, or I feel like I'm going to cross again. ”

As soon as he finished speaking, Cheng Li threw himself on the bed and fell asleep......

......

The night passed, and soon it was dawn.

On this day, Qingling Island ushered in a new day again.

After Cheng Li became the honorary head, every day on Qingling Island will change with each passing day.

The present time is June 20, 999 in the nine-day calendar.

Everyone on Cheongling Island knows that today is the opening ceremony of Cheongling Elementary School, Cheongling Middle School, and Cheongryeong University.

In the face of such a novelty, early in the morning, almost everyone on Qingling Island, whether mortals or cultivators, flocked to the location of Qingling University.

This is located on the east side of the core area of Qingling Island, right next to Qingling Academy.

And based on Cheng Li's suggestion, the high-level management of Qingling Island put the site selection plan of Qingling Primary School, Middle School, and University together with Qingling University, and then according to Cheng Li, gave it a regional name for the university town.

The venue of the opening ceremony was placed at the intersection of Qingling Elementary School, Qingling Middle School, Qingling University, and Qingling Academy.

In the past two days, the cultivators' strong construction ability has already built the teaching buildings and supporting facilities of Qingling Elementary School, Middle School, and University, and the surroundings look like a new look.

However, it brought a new scene to Qingling Island, which was originally full of ruins and ruins.

It was 7:50 a.m., and as planned, the venue was scheduled to start at 8 a.m. this morning.

At this time, the venue was crowded, and almost all of the 150,000 mortals and 20,000 cultivators on Qingling Island had arrived.

On the high platform of the venue, all the high-level leaders of Qingling Island, the presbyterian church and the new presidents of each church and each church were all gathered.

However, among all of them, Cheng Li seems to be the only one missing......

"Master Cheng, why hasn't he come yet? After two teas, this venue is about to start. ”

After thinking about it, he finally gave orders to the people around him, and then he dodged and galloped towards Tongling Peak with a wine gourd.

With the speed of the old man, he soon came to Tongling Peak and landed directly in front of Chengli Cave Mansion.

"Brother Cheng, the opening ceremony is about to start, how are you preparing?"

The old man knocked on the door a few times, but found that there was no movement inside.

Naturally, the gate of this Zhangmendong Mansion cannot be broken in casually, and there are prohibitions inside.

However, even if the old man knocked a few more times, after waiting for a while, he found that there was still no movement inside.

Normally, with the keen perception of a cultivator, I'm afraid that as long as the old man walks to the door, he doesn't need to knock on the door, and Cheng Li should be able to feel it.

The old man couldn't help but wonder, "Is he still sleeping?"

Although a cultivator can go without sleep for a long time, if the brain works at high intensity for a long time, it will still feel tired and sleepy, and it is necessary to rest the brain by supplementing sleep.

In the end, seeing that Cheng Li's cave mansion was really unresponsive, the old man had to use his authority as a great elder, and finally unlocked Cheng Li's cave mansion ban, and then broke in.

As soon as he entered the cave, he saw Cheng Li, who was snoring in bed, and slept quite soundly.

"Cheng Li, this kid, I didn't expect that he was really still sleeping, and I don't know what he did last night, tired himself like this. ”

is an old man who also has a certain understanding of Cheng Li, and quickly thought of why Cheng Li slept like this, so he stepped forward and shook Cheng Li's body for a while before he finally woke Cheng Li up.

Cheng Li opened his eyes sleepily, saw the old man, and said hello in a daze: "Oh, the old man...... Ha...... Good morning......"

"Brother Cheng, I said that your body is not good, you can't hold it after only two nights, I think you still have to practice hard. ”

Of course, Cheng Li wouldn't tell him, plus the previous time, he hadn't closed his eyes for eight whole nights.

In a few seconds, as the brain was released from the confused state, Cheng Li also guessed the meaning of the old man.

"Count old, is this the opening ceremony about to begin?"

"Yes, the work will begin in a while, and I see that you have not come, so I will come to pick you up. ”

"Okay, then let's hurry up, I'm basically ready for the speech at the opening ceremony!"