In Zheng Rui's opinion, Fang Tong's level of Marxist-Leninist theory is really a bit weak, and her will to serve the people does not seem to be very firm, but this does not prevent her from taking him as her training object.

Now after all, it was Zheng Rui who needed Fang Tong to continue to provide her with ability support, and it was certainly great that he could work together with him. Everything else is secondary, and there can be no rush to train an activist into a fighter for the proletarian revolution. Besides, the situation is still unclear, even if she occupies the position of cultivating contacts, she may not necessarily be an introducer to join the party at that time.

And Fang Tong is really an interesting person, like Zheng Rui, he can sing a few Soviet songs. Zheng Rui asked him to "sing" a song "Red Prairie, Prairie" in the consciousness connection, and then asked him to "sing" "Cranberry Blossoms", because the consciousness connection can not only transmit the vocal part, but he can even bring his own imaginary soundtrack.

In this peaceful and rhythmic song, Zheng Rui actually fell asleep on the back of the chair again.

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By the time she woke up again, it was August 24.

Fang Tong: Hi, good morning.

Zheng Rui: Oh...... Good morning.

Zheng Rui didn't even know when Fang Tong reconnected to his consciousness, it seemed that he was quite comfortable using this thing. Just saying hello in the conscious connection still made her feel a little weird.

"Sister Na, there's nothing wrong with the second half of the night, right?" Zheng Rui rubbed her eyes and asked Bian Na, who was lying on the steps outside to keep accounts.

"It's fine." Bian Na wrote the last word on the ledger, then took the ledger and straightened up, "I went to look at it at five o'clock, the door was still closed, and everyone inside should be asleep." ”

This is also in line with Zheng Rui's expectations. After losing their abilities, those people should know that there is no hope of "turning over", and they can sink down and return to a calm state. Their behavior has broken through the bottom line of anti-humanity, but this bottom line does not necessarily mean that it cannot be returned. As long as these people don't do things, Zheng Rui is not in the mood to embarrass them.

It's just that Bian Na's behavior is still a little unexpected for her: "Sister Na, how can you go by yourself?" How dangerous it would be if someone else didn't clean it. ”

"It's okay, I'm not weak." Bian Na smiled and raised her hand to touch Zheng Rui's head.

She felt that Zheng Rui was becoming more and more like her sister - or like her new sister, because Zheng Rui was still quite different from Ben Na's own sister.

"Be careful, then." Zheng Rui leaned over and glanced at the accounts she kept, and she basically couldn't understand anything, but she could see that she seemed to have done a lot of calculations, "Sister Na, what is this?" It looks complicated. ”

"Oh, didn't you say that you may not need to consume calories right now, but you still have to consume material elements, right?" "I'm going to follow the recommended intake of elements like sodium, potassium, and vitamins to recalculate how long I can sustain my life. ”

Zheng Rui knows that it is necessary to calculate the intake of material elements. Let's not talk about inorganic salts and vitamins, let's consider carbon from the perspective of carbon, even if you don't eat or excrete, the human body is constantly losing carbon through breathing - and now Zheng Rui doesn't feel that she can stop breathing after being transformed by abnormal energy, most cells in the human body still have aerobic metabolism, otherwise her suffocation suicide experiment at the beginning would not have been successful.

According to statistics, an adult breathes 11,000 litres of air a day, which is equivalent to 11 cubic meters. The normal atmospheric carbon dioxide content is 0.003%, and the average carbon dioxide content in the breath exhaled by a person is about 4%, so it can be assumed that a person is equivalent to adding about 4% of the carbon dioxide in the same volume of air, that is, a person exhales pure carbon dioxide equivalent to 0.44 cubic meters per day at an atmospheric pressure.

An atmospheric pressure is 101.3kPa, which is easy to calculate, even if it is 100kPa, which is 1E5Pa. According to PV=nRT, n=PV/RT, then the amount of carbon excreted by a person's breathing every day is about 1E5*0.44÷8.314÷298g, which is E(5-1-1-2)=E1mol by order of magnitude, which is also a single digit. The molar mass of carbon is 12 g/mol, which means that people can lose hundreds of grams of carbon every day, even by breathing alone. Carbon alone needs to be supplemented, not to mention other forms of inorganic salts and vitamins.

Of course, Zheng Rui then thought that if the energy converters could complete the conversion from carbon dioxide to glucose in the body, then maybe they are not exhaling 4% of carbon dioxide now, and there is no way to talk about how much carbon they can lose from breathing. And if the ability modification has improved the recovery efficiency of soluble small molecules that were not very good in the original Zygosaurus, then maybe inorganic salts and vitamins are not a problem......

It still makes sense to do calculations, but when Zheng Rui thinks about it, he feels that it is too early to calculate. Maybe it's better to wait for her to fast for a period of time and if she finds that her inorganic salt intake is insufficient, and then consider whether to recalculate.

So after being "in a daze" for a while, Zheng Rui said to Bian Na: "Sister Na, this calculation is so troublesome, I don't think it's necessarily in a hurry, right?" ”

"Well, I'm not in a hurry, but I'll do it now when I have time." Benna just smiled.

"I was so nervous a few days ago, and I finally solved the problem on the other side, so I have to take a break." Zheng Rui said, "Now the ground outside should start to dry, and you can go out and bask in the sun." ”

Ben Na shook her head: "Go ahead, I'...... I'll forget it anyway. ”

Fang Tong: It doesn't feel right, don't you ask.

Zheng Rui: Why don't you ask?

Although he asked Fang Tong in the connection of consciousness, Zheng Rui still took the initiative to ask first: "What's the matter, Sister Na?" ”

"Not really." Benna said something in disguise, but she still told the truth, "I just...... It's just a little uncomfortable. Those things that happened yesterday, although we know that the truth is that they killed people first, but the killing thing is ......"

She sighed softly, looked down at the ledger in her hand and said, "I have to keep myself doing to avoid thinking about yesterday." ”

Zheng Rui knew very well what it was like to feel - it was not actually the guilt of killing, but just the inevitable mental shock when seeing the corpses of the same kind that had died tragically. Even Zheng Rui's psychological shadow about this is much heavier than her, otherwise she wouldn't need the continuous support of Fang Tong's spiritual type.

"Sister Na, it's all my fault." Zheng Rui comforted her and said, "Liu Haojia was killed by me, and I also killed Four-Eyed, so you don't have to have any psychological burden." ”

However, Bian Na raised her hand and patted her arm gently: "I'm fine, don't worry." I was just...... It's going to take a while. ”