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The dam is long, but it doesn't live many people.

With doubts, the White Swan took off again and turned to the fifth settlement.

What is most important to human civilization: water, oxygen, food, and electricity. When the white swan successfully landed on the tarmac built on the dam under the cover of dense anti-aircraft fire, Wu Chen finally understood why this place would become the fifth settlement of mankind.

First of all, she has water and electricity. Secondly, because it is an extremely important structure, it was garrisoned before the end of the day with elite dam guards who fended off the first wave of Wyverns, and the solid reinforced concrete dam body also blocked the attacks of flames and claws. Again, there are fish in the river, which perfectly solves the food problem.

When Wu Chen came to the depths of the dam with the elevator, he found that there was a lot of articles inside!

The continuous power supply makes the entire dam body be built into a vertical and horizontal rail transit hub. There are rows of high-speed elevators up and down, and there are rows of light rail trams coming and going.

The elevator is fine, but where do these trams lead?

Soon, he found the answer: the train leads to the bottom of the river!

The fifth settlement is an underwater city built on the upper reaches of the river with the dam body!

It turned out to be an underwater city!

At a glance, the brightly lit high-rise buildings rise and fall one after another, the fantastic shape of the submarine is lined up in a long line, and it is the transparent and closed water pipes that connect the building and the submarine!

"Where does the oxygen come from?" The question is not the standard of technical nerds.

"Oxygen from electrolysis of water." The immigration officer who accompanied him explained with a smile.

The most important thing in the Three Gorges is water and electricity. Wu Chen nodded, and then he saw many shell-shaped underwater farms. Do you only eat fish? After asking, I learned that the giant spiral building that occupies the center of the water body is the most important source of food - agricultural plantations. The maximum water storage depth of the Three Gorges is 175 meters. It is 58 floors when converted to floors. Fire dragons obviously can't swim, so it's pretty safe to live here!

"How many more people can the city hold?" After reading it, Wu Chen was finally relieved.

"50,000 people." The official blurted out.

Wu Chen nodded: "I'll try to fill it up for you." ”

But the official's face suddenly changed: "You, can you really do it?!" ”

"Of course." Wu Chen raised his eyebrows.

"Then please!" Bow at 90 degrees or something, the otaku said it was all trivial.

The greatest impact of the end times on humanity. Except that to survive is to reproduce.

Underwater cities solve the problem of human survival, and the reproduction of the race must constantly inject fresh blood to prevent the tragedy of inbreeding. At this time, in addition to envying reptiles that can reproduce parthenogenesis, human beings can only pin their hopes on the great empty angel.

"To be honest, it's been a long time since we've seen the Sky Angel Rescue Team." The officer led Wu Chen into an underwater motorboat.

Wu Chen scratched his head with a smile: "I guess it's the last stupid." ”

"No, Your Excellency. You deserve the respect of all humanity more than ever. ”

"Extraordinary traffickers?" Wu Chen quipped.

"I have another way of describing it." The thick tongue curl is an Australian vernacular that cannot be changed. "Noah's Ark."

The jet ski uses the water compartment to swim in the vast and fascinating underwater world. At Wu Chen's request, officials are taking him to the 'slaughterhouse' in the fifth district. Compared to the bloody slaughter in District 7, the slaughterhouse in District 5 is obviously much more civilized. Because these dragons are all drowned without exception.

The work of the dragon hunters in the Fifth District can simply be described as heavenly.

All they had to do was put down in a suitable position in an iron-hulled barge loaded with salted fish, and the hungry wyvern would drown in the river one after another.

Here's how it works: the iron shell filled with salted fish removes the wire grid. Nothing. But it was the barbed wire that kept the salted fish at the bottom of the cabin that became a fatal chasm that the dragon could not cross. Without this barbed wire, the dragon would have swooped down and swept over the barge's long neck to ensure that it could eat delicious food. However, because of this thumb-thick barbed wire, a qiē became a bubble.

The dragon must land on the barbed wire fence and try to tear through the grid with its claws or mouthparts before it can eat the food underneath.

The danger happened the moment it landed.

A specially treated barge at the moment of impact. It will collapse, disintegrate, and sink like building blocks. The wyvern, who had lost its support, didn't have time to react at all, and then pounced and fell into the water.

Now it's time to put your swimming skills to the test!

And the flying dragon also proved with a real table that they are indeed landlubbers.

It's simple, it's that simple.

Because of the development of black technology. In addition to the slaughtering function, the slaughterhouse also comes with a fire dragon research institute. I heard that there is a hidden profession in the mountains - the Sky Angel, and the extremely excited dark scientists seem to be professional star chasers who have seen their idols, and it is not a secret to Wu Chen. After Wu Chen learned about the body structure of the fire dragon in detail, he finally asked the question in his heart: "Everyone, have you ever heard of a scientific madman who studies the mutant variants of the fire dragon?" ”

"We all are." The white-bearded grandfathers nodded in unison.

"What did you find?"

"There aren't any dominant genes that humans can exploit. The genetic sequence of the fire dragon is more like it was designed. Perfect and steady. compared to our genome. It has great 'elasticity'. ”

"Resilience?" Wu Chen was difficult to comprehend.

"Yes, it's like gummy candy. You can't chew it anymore. We can't separate, let alone 'graft'. And even if it is forcibly integrated. The lower genes will also be eaten by the dragon genes. ”

"Understood." Wu Chen thought for a while and said, "I heard that the female dragon has eggs that can be hatched in her body?" ”

"Yes. Some are fertilized eggs, and some are not yet fertilized. But once they leave the mother's body, the eggs can no longer hatch. We've tried a lot of things, but they didn't work. We even wonder if someone created these dragons. Exclusively play our ......"

"All kinds of paths are blocked, aren't they?" Wu Chen couldn't help but think, if you don't let humans take advantage of the slightest loophole, how much hatred you have to brush!

"Guys, I need some handy guys, do you have any good things to introduce?"

"Yes!" The old grandfathers raised their hands in unison.

Loaded with dragon weapons and a variety of aquatic products. The White Swan took off again and rushed to Eielson Air Force Base.

The white swan loaded in the last batch of refugees, and the general's whole body was relaxed: "Your Excellency, we have learned from the refugees that there are still many refugee points on this continent, large and small, if needed. I can hand you this refugee map. ”

The map has been refreshed again.

Wu Chen smiled and nodded: "That's no better." ”

The white swan took off again and rushed to the fifth settlement.

On the way, Wu Chen and Gloria seriously discussed the possibility of the existence of the underwater city.

The Three Gorges Dam is at an important fulcrum. Not only did it stop the burning and destruction of the Wyvern, but it also provided the necessary conditions for the next underwater construction: people, machines, food, electricity, and determination. The busy waterway of the Yangtze River provides the necessary conditions for the gathering of large machinery, building materials and labor. In this way, the dam is excavated to a deeper depth. Then, the horizontal excavation was carried out, and the ventilation pipes and diaphragm were laid before the building broke through the riverbed. Then it was expanded layer by layer, until the whole city was built. During this period, the reinforcement of the dam must be an indispensable link. But in the face of survival, this is not a matter.

In this way, only the Three Gorges can build an underwater city.

The reason is simple, where there is a dam, the water is not deep enough; Where the water is deep, there is no dam; Where there is water and a dam, there are no defenders; Where there is water, dams, and defenders, there is no one; Where there are waters, dams, defenders, and people, shipping is underdeveloped......

From this, it can be concluded that no matter natural or man-made disasters, China will come after the end of the world.

Not convinced to think about 2012?

The earth is completely flooded. Don't we still have Himalayan bravery......

After several blind fire dragons were headshot in the air, the white swan landed safely. The elevator was sent into the dam body, and an immigration officer arrived to greet it.

"Captain Wu. Or is it full? ”

"It's not full this time, and the rest of the refugees are here." Wu Chen handed over the list, "275 people." ”

This is also no small surprise. Moreover, many of the refugees transported by Wu Chen are young and middle-aged people who are strong and strong. Only these people have enough physique and perseverance to evade the hunt of the fire dragon.

"Okay, okay." The immigration officers were happy. Although the world is the same, the male official whose ancestral home is still happy from the bottom of his heart to see more Caucasians coming. As a noble hidden profession. Wu Chen's work is free. However, it is a common practice that the human remnants who are being helped must provide spare parts for repairs, fuel replenishment, and supplies of daily necessities.

Wu Chen's is a nuclear-powered aircraft. Oil is not needed, let alone White Swan accessories that have all undergone Cybertron technology transformation. So after discussing with him, he simply converted them into livelihood points and deposited them all in his card.

"Captain Wu, 27,500 points have been deposited in the card."

100 points per person, although the value of human beings is far more than that, but for Wu Chen, who has a net worth of 200,000 resource points, it doesn't matter how much.

"By the way, there's a telegram from you."

"Telegram?" Wu Chen was stunned.

"Most of the relay stations of wireless networks have been destroyed, so the telegraph has become the fastest and cheapest means of transmitting messages." The official smiled and handed the handheld computer to Wu Chen. The interface is a tape recorder, yes, if you really want to give him a telegraph, Wu Chen is really going to complain.

"Wu Chen, I'm Butterfly Dance, Park Jin-hee learned from a South Korean refugee that there are still many survivors in the Seoul subway. We are still confirming the specific information and will keep in touch. ”

Returning the computer to the official, Wu Chen turned around and returned to the plane.

Subway shelters are no surprise. Just like there are survivors in South Korea. In the same way, the reason why island countries with advanced economies such as South Korea, Japan, and the United Kingdom cannot become refuge paradises is because the urban agglomeration brought about by development has greatly squeezed land resources. When society regresses to the point of worrying about filling its belly all day long, flashy technological creations such as mobile phones and tablets quickly lose their high added value. Of course, the narrow strategic space of island countries is also a decisive factor that cannot be sustained for a long time.

Even if the subway can ensure personal safety, 20 years have passed, and the hungry people have eaten up all of them.

Wu Chen didn't want to think about it anymore. (To be continued) R580