As a member of the integer system, zero has special significance in the field of mathematics and is like a cornerstone and indispensable for the development of basic mathematics.
How special is zero?
It is between -1 and 1. It is the smallest natural number. It takes into account the sequence of rational numbers. It is neither a positive number nor a negative number. It is the dividing line between the two, and there is no reciprocal.
The opposite of zero, absolute value, square root, and cube root are all zero. Zero multiplied by any integer equals zero, and multiples of zero are also zero.
As an extremely important member of the field of mathematics, zero has contained various mysterious colors since its birth. After zero was discovered, it initially symbolized "emptiness". As it was introduced to the West, the existence of zero led to many calculations and The logic could not be established, so it was classified as a devil number and was banned.
zero!
Unique zero!
"Uh...indeed."
Hearing Dean Li Hongyuan's words, Zhou Hai was slightly startled, but he immediately understood and smiled without revealing his true thoughts.
He would never explain that he chose this code name just for the beauty from far away.
"The name is good, the first in the country."
After praising him, Li Hongyuan, with a smile on his face, picked up the tactical tablet terminal and forwarded it to Wang Zhuyu and others in turn.
Ten minutes later, after everyone had chosen their code names one after another, and accompanied by warm applause from all the witnesses, the sacred and solemn graduation and promotion ceremony of Shicheng Feiyuan Higher Education Machinery School officially came to an end and came to an end.
The three comrades in dormitory 308 and the other student pilots each came up and sent their blessings and thanks.
Accompanied by endless laughter and blessings, the eight people who have become official third-level pilots of the Air Force are about to bid farewell to the Shicheng Flying Academy where they have lived for a long time and start a new journey.
As the night gets deeper, the bright moon hangs high on the top of the sky, releasing endless silver moonlight.
Tonight is Zhou Hai's last night in Shicheng Feiyuan.
…
The next day.
On the eve of dawn, the sky is bright.
In the first dormitory building for boys, dormitory 308, there was silence.
Xiao Nan, Zhao Ziqing and Han Li, who had been awake almost all night, were wearing training uniforms and standing in military postures. Their eyes were silently looking at Zhou Hai who was sitting on the edge of the bed. There were stacked tofu cubes in the center of the four beds in the dormitory. The corners are clean and tidy.
silence.
Quiet.
There is also a hint of sadness of farewell.
The hustle and bustle of the night has passed, and all that needs to be said has been said.
Now, just wait.
Time passed little by little, until at 6:30, the familiar wake-up call sounded on time, spreading throughout the Shicheng Feiyuan Camp.
"Lao Zhou, the time has come."
Hearing the wake-up call in his ears, Xiao Nan, who is the head of dormitory 308 and also the daily corpse-living fish, opened his mouth and whispered, breaking the silence in the dormitory and reminding him.
The time of departure has come!
On the side, Han Li's eyes were red, with crystal clear tears rolling down his face, as he suppressed his inner emotions.
Zhao Ziqing, who was like a prince from an aristocratic family, was smiling and silent.
Farewell is a rare and unforgettable experience.
"OK."
Zhou Hai, who was wearing summer clothes, looked at the three of them and nodded, with a habitual smile on his face. He stood up from the edge of the bed and picked up the luggage backpack containing personal belongings.
"squeak!"
At the same time, the door of dormitory 308 slowly opened, and two figures stood at the door. Instructor Yang Xiaolong stood in the middle of the door, and on the right was a young officer about 27 or 27 years old.
The whole person is wearing a light green anti-German suit at the level of a fighter pilot. He has straight facial features, a round face, a convergent chin, and a tanned skin. The black pupils embedded in the bright eyes reveal a sense of determination.
On the right chest of the leather jacket, he wears a sky blue double-winged second-class pilot chest badge.
Standing in front of the dormitory door, Yang Xiaolong looked at Zhou Hai with a kind expression on his slightly wrinkled face: "Zhou Hai, are you ready?"
"Teacher Yang, I'm ready."
Looking at this unfamiliar young flight officer, Zhou Hai stood in a military posture and nodded in response.
The young officer standing aside had a serious look on his slightly round face. He stretched out his right hand to Zhou Hai and said seriously: "Hello, Comrade Zhou Hai. I am the base pick-up person, codenamed Overlord. Your files and procedures have been transferred." After the pick-up is completed, I will be responsible for transporting you to the base. Is there anything else that needs to be handled?"
"have."
After hearing this, Zhou Hai nodded and put down his backpack.
Immediately afterwards, he turned around, faced the silent dormitory 308, walked straight towards Xiao Nan, who was standing quietly, stood in front of him, with a smile on his face, and gently spread his hands.
Without speaking, a smile was enough to say it all.
Xiao Nan, who had always been considered heartless, had a sore nose, gritted his teeth, and imitated Zhao Ziqing, forced a smile on his face, opened his hands, and hugged Zhou Hai, holding tightly with his right hand.
They hugged each other for three seconds, but then separated slightly.
The smile on Zhou Hai's face did not diminish and he extended his blessing: "Old Xiao, keep your relationship with Team Leader Wang. If you have nothing to do, you can study with Team Leader Hu Jun and strive to graduate as soon as possible."
"Will do."
Xiao Nan nodded repeatedly, his eyes were red, he was holding back tears and was a little choked.
Then, after patting Xiao Nan's solid shoulder, Zhou Hai turned to face Zhao Ziqing, still smiling like a spring breeze on his face, and gently opened his hands.
Zhao Ziqing, who had an elegant temperament, also smiled back and reached out to hug Zhou Hai.
"Old Zhao, you are a smart man, always looking for opportunities to extort money from my pocket, but there is no chance this time. Before leaving, I still said the same thing, safety first."
"Have a safe journey, Lao Zhou."
"Don't cry, Old Han. You are an eagle, a proud son of heaven. Don't cry like a girl. Your flying talent is good, don't relax, study more, and safety first."
"I will, Lao Zhou."
Embrace.
The last hug before leaving.
Han Li, who had the weakest grades, had tears soaking his eyes and his vision was blurred after he and Zhou Hai hugged each other and separated.
Returning to the door of dormitory 308, Zhou Hai stood up straight with a smile on his face and raised his right hand: "Three brothers, we will meet again in the future."
"Uh-huh!"
The three of them raised their right hands in unison and put their fingers together in the most standard military salute.
Everyone understands that after this farewell, if we want to meet again, we don’t know when it will be.
Zhou Hai, this comrade who shot through the sky like a meteor and passed the graduation examination in just five months, has long been integrated into the entire dormitory 308 group and into the memories of the three of them.
"Let's go."
Yang Xiaolong said softly.
Zhou Hai nodded, picked up his luggage and backpack, with the same smile on his face as when he arrived in dormitory 308, and his posture like a majestic mountain. He turned and walked out of the main door of the dormitory, following Yang Xiaolong and the pick-up person Bawang.
The sky becomes clearer and clearer, and the wake-up call disappears.
In the open space at the bottom of the building, all the male ordinary flight students gathered into a formation and prepared for the drill.
