CHAPTER XX

Question 121: [Zhang, Wang, Li, and Zhao have different blood types, and Zhang said: I am type A. The king said, "I am Type O." Lee said: I'm type AB. Zhao said: I am not AB type. Only one of the four told a lie. Excuse me: Who told the lie?]

Question 122: [Three young men fall in love with a girl at the same time, and in order to decide which of them can marry this girl, they decide to have a duel with a pistol.] Xiao Li's shooting rate is 30%, Xiao Huang is better than him, the shooting rate is 50%, and the best gunner is Xiao Lin, he never makes mistakes, and the shooting rate is 100%. Because of this obvious fact, for the sake of fairness, they decided to go in this order: Xiao Li shot first, Xiao Huang second, and Xiao Lin last. And so on until they are left with only one person. So who of the three has the best chance of surviving?]

Bi Qi yawned and rubbed his brow with some headache.

"That's all left!"

He visually inspected the remaining thickness of this "500 Questions for Logical Thinking" and let out a wail.

At this moment, the door to Bizzie's bedroom was pushed in.

Bi Qi's mother walked in with a glass of hot milk and walked behind Bi Qi softly, "It's almost twelve o'clock, Xiao Qi, you haven't slept yet!"

"No!" Bi Qi gritted his teeth, "Ma Zhixuan already told me just now that he is about to reach 200 questions, and I must not fall behind!"

Biqi's mother smiled with relief, she hadn't seen her son work so hard for a long time.

"Then come on!"

"Hmm!" Bi Qi clenched his fists and was in high spirits, "This time, I will definitely bring back the IMO gold medal!"

At this time, another corner of the city.

Beneath the smoky dark walls was a lame desk.

In the dim light, Ma Zhengxuan patted his cheek to dispel his sleepiness, and continued to lie on the desk and fight with those logical reasoning questions.

…………

The next day, the Mathematics Section Office.

Gao Yunjin knocked on the door and walked in, walking towards Gu Lu's desk.

Looking at Zhou Haihong's gaze halfway, Zhou Haihong snorted coldly and quickly turned his head.

Gao Yunjin touched his nose and smiled, "Teacher Gu, that, there may have been some kind of misunderstanding between me and Teacher Zhou before, can you ......?"

Gu Lu shrugged, "I'll try my best to help you and Teacher Zhou adjust." But don't say that bold idea you had before to take over the math class!"

It is a blessing that the math teacher does not occupy other teachers' classes, before Gao Yunjin was so bold that he wanted to occupy the math class, it is strange that Zhou Haihong can be happy.

"No, no. Gao Yunjin smiled awkwardly, "With Teacher Gu and you joining, there is no need to be so troublesome." ”

Gao Yunjin's competition coaching method is completely based on time to win.

Through a lot of tutoring and practice, students improve their math skills.

And Gu Lu relies on quality to win.

"The answer to the content part of the second test is still not ideal. Gu Lu looked at the test results of the latest competition class and sighed helplessly.

"This can't be helped, after all, for most students, it is new knowledge, and it is too difficult to use it proficiently. Gao Yunjin also sighed.

Gu Lu also realized the thorniness of the problem.

The National High School Mathematics League is divided into one and two tests.

The total score is 300 points, including 100 points in one test, including eight fill-in-the-blank questions and three solution questions.

The second test is worth 200 points, but there are only four answer questions.

According to the requirements of the latest examination syllabus of the National High School Mathematics League issued by the Ministry of Education, the scope of knowledge involved in the examination content of the first test does not exceed the teaching requirements and content stipulated in the 2000 "Mathematics Syllabus for Full-time Ordinary Senior High Schools" of the Ministry of Education, but the requirements of the method have been improved.

In other words, the scope of the examination is the same as that of the college entrance examination.

In order to be in line with the International Mathematical Olympiad, in addition to the syllabus of the first test, the content was expanded in four directions: plane geometry, algebra, number theory, and combinatorics.

These extended contents are not covered by high school teachers, which makes most students struggle in this regard.

Gu Lu's fingers kept tapping on the table, "Teacher Gao, in this way, in the future, you will teach the students the content of the first test, and I will teach the content of the second test." Strive for the shortest possible time for students to understand the expanded content. ”

"Teacher Gu, is it really okay in such a short period of time?" Gao Yunjin hesitated.

Gu Lu propped up the table with both hands, full of spirit, "I don't expect them all to meet my requirements, but as long as ten people can complete it, then everything we do will be worth it!"

…………

In the afternoon, Gu Lu was sorting out the lesson plan for tomorrow's competition class, when he suddenly heard the sound of dripping from the computer.

"Email?" Gu Lu was wondering who would send an email to him at this time, but suddenly thought of something, and hurriedly came to the computer to open the mailbox.

Sure enough, as I speculated, it was the reply to the "Mathematical and Physical Letters".

He submitted on September 7th, and today is only September 27th.

In other words, it only took 20 days for Gu Lu's paper to be reviewed.

Gu Lu quickly opened the email and read the reviewer's comments to him.

Each paper in Mathematical Physics Letters needs to be reviewed by at least three reviewers, so Gu Lu received three reviewers.

The first two reviewers spoke highly of Gu Lu's "Differential Geometry of Neutron Manifolds in Four-Dimensional Minkowski Space" and said that they could directly pass the manuscript.

However, the third reviewer proposed amendments to Gu Lu in the review comments.

“Reviewer: 3

The idea in this paper is very interesting and can fill some gaps in the field of differential geometry. However， in my opinion， there are still some flaws in this paper， and I hope the author can revise it.

1、In the third part of the paper， the study of time-like hypersurfaces in the four-dimensional Minkowski space， the reason why there is tangent space in the two-dimensional light cone should be explained briefly.

2、This is also the third part……”

The third reviewer made two small comments about Gu's paper.

First, in the study of time-like hypersurfaces in four-dimensional Minkowski space, it is necessary to explain the reason for the existence of two-dimensional light cones in tangent space.

Another point is also in the third part, the reviewer hopes that Gu Lu can make a simple deduction of the relationship between the curvature of the light direction in the tangent space of de Sitter Gauss curvature.

This level of modification is not even a minor repair.

At the same time, it means that Gu Lu's paper is almost nine out of ten times safe.

In order to publish the paper as soon as possible and complete the side tasks of the system by the way, Gu Lu stopped his current work and revised the comments put forward by the third reviewer.

Opening the document where the paper was kept, Gu Lu's fingers tapped on the keyboard and got busy again.

And at this time, Zhou Haihong, who was receiving water next to the water dispenser, walked behind Gu Lu.

When I subconsciously looked at Gu Lu's computer, I saw a screen full of English and mathematical symbols.

"Teacher Gu, what are you doing?"

………………

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