Yes, when the middle-aged teacher saw the solution process of the first calculation question, he had doubts in his heart, because the whole solution process did not just have a simple word "solution", nor was it a random answer similar to copying calculation questions.
, but real problem-solving proofs and mathematical formulas.
He knows right and wrong in arithmetic, and he will never lie. Whether he answers randomly or not can be seen at a glance.
The handwriting is beautiful, the proofs are concise and sufficient, the formulas are complete, and there is no rambling mathematical knowledge point at all.
The solution process looks pleasing to the eye and extremely comfortable.
There is something!
With his heart condensed, the middle-aged teacher suddenly felt that something was wrong. His face was serious, his eyes were fixed on Yu Hua's arithmetic test paper, and he reviewed it carefully.
There was silence in the classroom, and all the students were not affected in any way and answered the questions silently.
As time passed by, the anger on the face of the invigilator, whose real identity was a Nankai lecturer, gradually turned into surprise and shock, and was eventually replaced by praise.
Everything, like the dry land that welcomes the spring rain, draws out the green and glows with vitality.
calm.
The middle-aged invigilator gradually became calmer. He never imagined that he would encounter such a thing this time while invigilating the exam.
A student actually finished the arithmetic test paper in ten minutes and got full marks!
Yes, full marks!
As a lecturer in the Department of Mathematics, he clearly knew the final score of Yu Hua's test paper. Even if he was corrected by the most strict teacher, he would still give full marks.
After working on it for a long time, it turned out that I had misunderstood the student...
The key is, this is still a full-score test paper.
"This, this test paper... did you really take only ten minutes?" The middle-aged invigilator withdrew his gaze, took a deep breath, and stared at Yu Hua with an elegant smile on his side, breaking the long silence.
Some asked intermittently.
"Sir, yes." Yu Hua smiled like a gentleman and did not ask how his test paper was, embarrassing the invigilator.
This kind of thing is possible, but not necessary.
After receiving the answer, the middle-aged invigilator nodded, his face gradually became serious, and he apologized to Yu Hua in public without caring about his identity: "This student, sir, I wronged you. I am really sorry. I will review this matter..."
Speak sincerely and seriously.
Wrong is wrong, he will not let this matter go by because of his status as 'sir'.
"Sir, there's no need to be like this. This is just a misunderstanding. Students solve problems very quickly and like to sit down after finishing. The joint examination is very important right now. Please go back and supervise the students like me." Yu Hua shook his head and explained.
The middle-aged invigilator heard this and knew that this was the step handed by Yu Hua. He was silent for a second and nodded: "Okay."
After finishing speaking, he turned around and walked towards the podium.
The surrounding students looked at this foreign school teacher who was somewhat shocked, and shook their heads helplessly. They knew the outcome as soon as the incident began.
This teacher from a foreign school suffered because he did not understand the internal situation of No. 4 Middle School.
This is a mythical figure who published a mathematics article in the Tsinghua Journal with perfect scores in seven subjects.
Yu Hua refolded the test paper, sat quietly, and fully enjoyed the leisurely time during the exam.
In the classroom, calm returned.
"Boom!"
Time passed, two and a half hours passed by, and the bell symbolizing the end of the exam rang.
All the candidates stopped writing and stood up. When the invigilator collected the test papers and left, the second arithmetic subject of the joint examination came to an end.
The math test was over, and many students in the classroom couldn't wait to answer the questions. Some people packed up their belongings and left quickly, preparing to review the four sub-subjects of physics, chemistry, biology and party spirit.
In fact, the subject arrangement of the Peking Joint Entrance Examination is very similar to that of later generations. The first day is Chinese and mathematics, and the second day is four minor subjects and English. The main reason is that the joint entrance examination is based on the university admissions system. The university admissions examination of the Republic of China decided to be unified nationwide in the Republic of China.
Admissions examination, and the college entrance examination is the successor of the college entrance examination in the Republic of China.
"Tomorrow there will be science comprehensive and English exams. We will finish the exam and call it a day."
After the exam, Yu Hua packed up his belongings, left the third examination room, and set foot on the road to the cafeteria. As he walked, he thought: "When the results of the joint examination come out, I will have a lot of free time, and I can use this time to do the Seven Towers."
I have completed the preliminary research and development work for this type of device, but the funding issue has not yet been resolved."
After the joint entrance exam is over, Yu Hua has a lot of free time to carry out research and development of the seven-tower device.
In essence, the seven-tower device for sulfuric acid manufacturing is not difficult. The preliminary design and key technologies were completed by Yu Hua at the end of April.
The only problem now is money.
"After the joint entrance examination, I will ask the angels to borrow money."
Yu Hua thought about it and made a decision. After the joint entrance examination, he would go find the scheduled angel investors.
The joint entrance examination is coming soon. Yu Hua did not disturb Lin Wan, Zhou Yuan and others' studies before. Now the time is ripe, it is a good time to borrow money.
As for how to pay back the money...
emmm…
Why should I pay back the money I borrowed based on my ability?
Okay, just kidding, once the seven-tower device is successfully developed, Yu Hua will transfer the technology to every ‘angel investor’ without reservation.
In peaceful times, Yu Hua would use technology to make money.
In war years, technology must be used to enhance one's own war potential.
"What are you thinking about?" At this moment, a familiar and melodious voice suddenly came from her ears. Lin Wan came to her side at some point, carrying a schoolbag and a light smile on her face, looking happy.
appearance.
"It's a very important thing, Jin Yu." Hearing the voice, Yu Hua came back to his senses and turned to look at Lin Wan, one of the potential angel investors, with a gentle smile on his face.
Among several potential angel investors, Lin Wan, who is the representative of the red organization, is undoubtedly the best choice. Yu Hua is ready to gradually reveal his talents and talents to Lin Wan and contact the red organization with his true identity.
Of course, Zhang San, the royal vest, is still not in a hurry to be exposed.
After hearing these words, Lin Wan asked curiously: "Do you mind revealing it? Personally, I am quite curious."
"I'm going to borrow money from you." Yu Hua looked around and saw that no one else was present. He approached Lin Wan slightly and whispered.
Co-authoring, is this a ‘very important thing’?
Hearing the word "borrow money", Lin Wan was stunned and helpless. She didn't know whether to laugh or cry. She looked at Yu Hua with eyes as clear as gems, confused: "Are you still short of money? I remember that the school waived your tuition and you still have 100 yuan every month."
Yuan Scholarship.”
"It's very short. The gap is at least 8,000 yuan." Yu Hua nodded seriously and said solemnly.
Upon hearing this number, Lin Wan was stunned: "..."
"What's wrong?" Yu Hua asked.
"Eight Thousand Dayang, are you planning to pay someone to kill someone?" Lin Wan came back to her senses, her interest became more intense, and she asked curiously.
Eight thousand!
Lin Wan, who has been among the students of No. 4 Middle School for a long time, was also shocked by this number.
Eight thousand oceans is by no means a small amount. For any contemporary family, it is an astronomical sum.
Why did Yu Hua borrow so much money?
"Kill someone..."
Yu Hua rolled his eyes, replied angrily, and then patiently explained the technology to the best angel investor: "This money is used for the research and development of a chemical technology. I plan to improve the Western sulfuric acid production process and develop it based on the tower method.
A new type of sulfuric acid production device has twice the output of the old production process. It has a volume of 700 cubic meters and can produce 22 tons of sulfuric acid per day. It uses steel instead of lead. If this technology is successful, it will be of great help to the country. I will