Because, the Sixth Regiment stationed here is no different from stationed in Tianjin City.
With the high mobility provided by the railway line, the 6th Wing can reach Tianjin in three hours and Peking in eight hours.
Being stationed in Tianjin City will attract attention from the outside world, but stationed here has almost no disadvantages and the benefits are very obvious.
The Sixth Regiment even arrived in this valley on time two days ago to station itself, transforming into a poisonous snake lurking in the dark, ready to deliver a fatal blow at any time.
After verifying the identity information, Li Ping and Shen Wei did not dare to delay and returned the same way. After quietly leaving the warning range of the 6th Regiment in the Valley, they shuttled through the mountains and forests at the fastest speed.
There is not much time left for them.
About an hour later, a Japanese soldier loaded with ammunition struggled to climb up the hillside and arrived near the secret sentry point. The expected command voice did not appear. He frowned slightly and shouted towards the secret sentry point not far away: "Fujita-kun. , it’s time for the changing of the guard.”
There was still no movement coming from the dark sentry point.
Seeing this situation, the extremely vigilant Japanese soldiers immediately entered combat mode. They grasped the Type 38 rifle tightly with both hands, pulled the bolt and loaded the gun, and slowly approached the hidden sentry point. Then, Fujita's body, which was hidden in the hidden sentry point and covered by weeds, came into view. , blood was everywhere, and the body was motionless.
"Baga!" Seeing Fujita who had been dead for a long time, the Japanese soldier cursed secretly. He immediately understood the situation and quickly returned to the team headquarters.
Not long after, the news that Fujita and another soldier were attacked and killed was passed on to the wing headquarters.
However, this situation did not attract the attention of the commander Nakajima Murichi. Since the losses were minimal, he believed that the incident was defined as a simple attack. In the face of the powerful force of the 6th Regiment, the enemy could only choose to return without success. .
The reconnaissance team rushed back to Tianjin City as quickly as possible and quickly reported the situation to Tian Hong, who was about to be promoted to the top person in charge of the Pingjin area.
…
Beiping City, Fengtai area.
A young man dressed as an ordinary citizen was staying outside the Japanese military camp, strolling on the street, looking quietly at the gate of the military camp.
Not long after, there was a sudden movement in the Japanese military camp. The gate opened, and a group of Japanese soldiers left the barracks, commanded by a Japanese major, and walked away to the other side of the street.
When the young man saw this Japanese army, he immediately buried his head, showed the watch on his right hand, which read 7:20, silently recorded the time, and then stood up and left.
In the Pingjin area, red Special Forces personnel dressed in various identities stayed near the area where Japanese troops were stationed, decoding intelligence information and verifying the information.
…
Tianjin City, suburban courtyard.
Three middle-aged men were sitting in the main room. Three documents were placed on each table, which recorded the details of recent intelligence operations. A young man stood next to him and reported seriously: "Reporting to the chief, the Special Branch Department will decipher the intelligence based on We have conducted multiple intelligence verifications and the accuracy of the military intelligence information in the red secret deciphering data is 99.5%. We have complete information on the mobilization of Japanese troops. Regarding Japan’s diplomatic intelligence information, it is temporarily unable to verify it.”
Military intelligence accuracy is 99.5%!
This is an incredibly shocking statistic.
"Okay, very good. Thank you for your hard work. Please keep up your efforts. The organization needs you." After hearing the information verification report on the red secret deciphering data, the professor took a deep breath, suppressed the excitement in his heart, and praised.
"Promise to complete the mission." The young man put down the document in his hand, straightened his body, saluted a military salute, and turned to leave.
"It's unimaginable, it's really unimaginable. Although Mr. Zhang San has described this situation in his letter, I still feel shocked. I never thought that one day I would be able to fully grasp the movements of the Japanese troops and know when they Out training and destination, etc." After the youth staff left, the professor said to the remaining two middle-aged men.
The words were full of emotion and shock.
"Yes, Comrade Professor, I think the time is right to report the situation of the red secret deciphering data to the central government." The middle-aged man wearing glasses nodded and said.
The professor nodded seriously: "Yes, I will do it immediately."
…
The next day.
In the early morning, the sun is rising.
"The differential mean value theorem is a general term for a series of mean value theorems, which are mainly divided into five categories: Taylor's formula, Lagrange's mean value theorem, L'Obidar's rule, Cauchy's mean value theorem and Rolle's theorem. Lagrange's mean value theorem I have already talked about the theorem and L'Hôpital's law before, but that was from the perspective of high numbers. Today we will talk about Lagrange's mean value theorem from the perspective of fractions."
"The mean value theorem is constructed from many theorems. Lagrange's mean value theorem is the core, Rolle's theorem is its special case, and Cauchy's theorem is the generalization."
"If the function satisfies that it is continuous on the closed interval [a, b] and is differentiable in the open interval (a, b), then there is at least one point ξ(a in (a, b)
“Making the equation f(b)-f(a)=f′(ξ)(ba) true, this is the mathematical expression of Lagrange’s mean value theorem.”
In the study room, Hua Luogeng's gentle and clear voice often sounded.
Today’s fractions class is about the differential mean value theorem. Hua Luogeng taught it very carefully, explaining the key knowledge points step by step. Yu Hua, who was sitting in the chair, concentrated on it and listened carefully, as if he was absorbing water like a dry sponge. , acquire knowledge.
The differential mean value theorem is a key knowledge node in the field of calculus, which mainly reflects the relationship between the locality of the derivative and the integrity of the function.
As for its role, it is a powerful tool for studying functions.
If you ask what is the use of studying functions... it can be used in all disciplines, whether it is physics, chemistry, flight mechanics and aerodynamics, including the explosives Yu Hua made in private and the limited thinking built in his mind. All meta-analysis systems can be used.
"Please note that when g(x)=x in Cauchy's mean value theorem, Cauchy's mean value theorem is Lagrange's mean value theorem." Soon, today's class on fractions was over, and Hua Luogeng carefully explained Lagrange from the perspective of fractions. After learning Lange's mean value theorem, he held the chalk in his right hand and wrote down the last series of formulas. He cleared his throat and gave a special reminder.
"Students have remembered." Yu Hua nodded in response. After this class, he felt that his mathematics level had improved a bit, and the progress of establishing the thinking finite element analysis system had increased by nearly 5%.
The progress is gratifying and there is only one last bit left.
However, towards the end, it often becomes more difficult.
"These questions are homework. I'm going to class." Hua Luogeng smiled, turned around and left three math questions on the blackboard, and then left.
"Goodbye, professor." Yu Hua said goodbye to Hua Luogeng, looking at the three numerical questions on the blackboard. After a second, he had already calculated the answers in his mind.
Holding the pen in his right hand, he lowered it, and mathematical characters in block letters appeared on the surface of the draft paper.
After about ten minutes, three pieces of draft paper were written, all of which were densely packed with mathematical proofs.
One second for mental arithmetic and ten minutes for handwriting.
"Huh..." After finishing his homework, Yu Hua let out a breath of turbid air.
