"Gene strand?" Xia Yu was stunned when he heard this, and hurriedly asked, "Hey, Starry Sky, it's not good to do anything to my genes, okay?" So as soon as the DNA is checked, I'm not finished? ”

"I'm just interfering with your gene chain, not changing your genes, it's impossible for you to mutate into another creature." Starry Sky's voice was as flat as water: "Even I can't completely decipher the genetic code of human beings, any forcible change of genes may have unpredictable consequences, besides, I am only an auxiliary learning system, which can only be strengthened on the original conditions, but no additional intervention can be carried out, so I just enhance the lifespan and strength of your body cells according to your original genes, and your body elements will be further strengthened, and there will be no other side effects." ”

"That's good, that's good." Xia Yu nodded again and again and said, "Then let's start, how much time will it take this time?" ”

"Three hours."

"That's right, when I get up from sleep, the third stage will be completed."

"Yes."

The next morning, when Xia Yu woke up, he could almost immediately feel the difference in his body, refreshed for the time being, Xia Yu could feel that the strength in his muscles seemed to be stronger than before, but Xia Yu needed to get used to the feeling of his body immediately, so he didn't even eat breakfast, ran directly to the physical training room, and began to try out various training equipment to feel his body.

Coming to a sandbag, Xia Yu put his left hand in front and his right hand behind, clenched his fists with both hands and put on a fighting posture, and then slammed continuously at the sandbag. The sound of "bang bang bang" kept ringing, and the starry sky helped to count, when Xia Yu hit the sandbag at the fastest speed, the punch speed reached an astonishing seventeen punches per second, which is a speed that many professional boxers can't achieve, and more importantly, Xia Yu did not reduce the power of boxing in order to achieve speed, the punching power of each punch was about two hundred and eighty kilograms, which was almost a force that could seriously injure or even kill people. But even Xia Yu himself felt that it was incredible that his reaction time could be further shortened.

Reaction time, is the time for people to receive stimulus signals from the outside world, and then think and then act, in the case of ordinary people, when people receive a signal, it can be light, sound, etc., ordinary people need to go through one-fifth of a second to start reacting, and people who have undergone special training have already begun to react at this time.

For those who practice martial arts, a seasoned martial artist can shorten his reaction time to about 0.1 seconds, which is twice the speed of a person's blink, which means that if you are fighting against such a person, or fighting, you blink, and the opponent's attack has already reached your face.

But Xia Yu's reaction time is not just limited to the fighting environment, but can react immediately to almost every qiē around him, such a short reaction time coupled with his lightning-fast thinking and physical action ability, now let alone air combat is invincible, even ground fighting, Xia Yu is unlikely to meet an opponent.

When Xia Yu finished his physical test, other pilots began to come to the physical training room one after another for daily routine training. When Zhou Ling walked in with a laugh with the people next to him, he found that Xia Yu was standing in front of the sandbag, so he said directly: "Xia Yu, I said how I couldn't see you when I had breakfast, it turns out that you are here, why is it so early today?" ”

"Well, just came here for a while." Xia Yu replied.

"What are you practicing?" Zhou Ling looked at Xia Yu and asked curiously. From the moment he came in just now, Xia Yu stood in a boxing defensive posture, judging from the tense muscles of Xia Yu's arms, it seemed that he was ready to hit the sandbag, but he couldn't see Xia Yu punching.

Xia Yu kept clenching his right fist, his right arm was tightly pressed against his ribs, and after hearing Zhou Ling's question, he didn't turn his head back, and replied directly: "I want to try my full strength, I don't know how many kilograms of strength I can hit." ”

When Zhou Ling heard this, he said, "Isn't there a fist strength testing machine over there?" Just try that. ”

One of the other pilots who were already exercising on their own was also interested, and one of them said, "I hit 180 kilograms last time on the test plane, which is a very good number in the amateur class." ”

"I tested it and it only hit 160 kilograms." The other person shook his head and said, "Zhou Ling, how many have you played?" ”

Zhou Ling smiled: "Don't look at me like this, I have a maximum strength of 220 kilograms." ”

"Hahaha, none of you." Another pilot, who looked quite athletic, said: "I like martial arts more, so I practiced, I tested it a few days ago, and my full punch can hit 300 kilograms, if my full force punches you in the face, it can directly break your face bones." ”

"You can brag, He Yong." Zhou Ling looked incredulous and said, "You call us and then talk." ”

The suspicion on the faces of Zhou Ling and the others made He Yong very unhappy, and he jumped off the treadmill and came to the boxing strength testing machine and said, "I'm really not bragging, let you see how powerful my heavy punches are." ”

After that, He Yong put on a boxing posture, took a deep breath, then stood on his toes, took a small step forward, and then clenched his right fist, "Drink Ha", and the right hand that was already ready to go flung forward, that is, a heavy straight punch hit the test boxing bag, "bang", making a dull sound.

The testing machine immediately gave the number jù, 310 kg. He Yong laughed and said, "How is it, have you seen it?" I'm in good shape today, and I've hit 310 kilograms, so don't mess with me in the future, be careful that I punch you and paralyze your face, hahaha. ”

"Damn, it's really fake." The other pilots talked a lot, and several of them went up to try it, and the value was probably between 80 and 180, and none of them could hit 200 kilograms.

Zhou Ling also stepped forward, stood in front of the test machine and threw a punch hard, only hitting 180 kilograms, a difference of 120 kilograms compared to He Yonghai, Zhou Ling smiled wryly: "It's not good today, hehe." In order to divert everyone's attention, Zhou Ling pointed at Xia Yu and said: "I have never been very good at martial arts, and it is already very good to be able to hit 180 kilograms of strength, but the really powerful one is Xia Yu, if you don't believe him, let him punch us and show us, He Yong is not necessarily his opponent." ”

When everyone heard this, they coaxed Xia Yu to give it a try, He Yong was no exception, he really didn't believe that there could be someone with higher punch power than himself in the pilot, he was a boxing enthusiast, and after special training, he knew how to exert the maximum power of his fist.

Xia Yu didn't say anything, he originally wanted to test his boxing strength, so he took a few steps forward and stood in front of the boxing strength testing machine, moved his body, and then also put on a boxing posture, gently raised his toes and jumped back and forth keenly twice, and then almost with lightning speed, a punch of "Ping" hit the test bag hard.