Question 2: As long as there is "hope", no matter how bad luck, it can't destroy mankind. What does this sentence mean? mean

People must have beliefs and ideals when they are alive.

As long as there is hope to support, as long as people's will is not crossed, we must persist.

Similar darkness will pass and ignorance will come.

Question 3: How to write the key words and abstract of the paper? The abstract of a thesis is generally about 100 to 200 words, and a large thesis (such as a graduation thesis of 40,000 words) can also be about one page (7800 words). It is necessary to explain what problems (significance) and methods the paper aims to solve. If there is an experiment, explain the basic methods of the experiment and draw one or several conclusions under the research conditions. The last sentence summarizes the conclusion and popularization significance under the given application scope. For example, something is very important under a certain condition, but the measurement accuracy of a parameter under a certain condition is not high. This paper measures how accurate it is to get a certain result in a certain way under certain conditions, and what effect this method can have in a certain range. Keywords must be content words, which are generally used to summarize one or more fields involved in your thesis and the research methods you think are important. For example, the key words of a paper on water treatment can be: drinking water, ultraviolet disinfection, organic matter, enough. Of course, the specific words involve the content of your paper. Keyword writing |MBA, MPA, PMP | Writing of academic papers | Writing of abstracts | Labeling of classification numbers | Problems that should be paid attention to in paper writing | How to write graduation thesis | Writing of keywords | Graduation defense | Keyword is the document retrieval logo of scientific papers, and it is a natural language vocabulary to express the concept of document theme. The key words of scientific papers are selected from their titles, hierarchical titles and text, which can smoothly reflect the theme concept of the papers. Keywords are put forward to meet the needs of computer retrieval, and the position is after the abstract. As early as 1963, the American Chemical Abstracts rolled up from page 58 and began to use computers to compile keyword indexes, which provided a quick way to retrieve literature topics. Today, with the rapid development of scientific and technological information, hundreds of thousands of scientific and technological papers are published every day all over the world, and academic circles have long agreed to use subject concept words to retrieve the latest published papers. If the author's published papers are not marked with keywords or descriptors, such articles will not be included in the literature database, and readers will not be able to retrieve them. Whether the keywords are properly selected is related to the retrieval of this article and the utilization rate of this achievement. 1 keyword classification keywords include narrative words and free words. ? 1) Description-refers to the standardized words or phrases that can be used to index the document theme concepts in Chinese thesaurus, MeSH and other vocabularies. 2) Free words-new nouns and terms that reflect the new technologies and disciplines in the theme of this paper, but are not included in the thesaurus or can't be found in the thesaurus. 2 Keyword Indexing In order to meet the needs of computer automatic retrieval, GB/T 3 179-92 stipulates that all modern sci-tech journals should give 3-8 keywords (or descriptions) at the back of academic papers. Keyword indexing should be selected according to the principles and methods of GB/T 3860- 1995 "Indexing Rules for Document Description" and referring to various thesaurus and reference books. Important terms in new disciplines and technologies that are not included in the glossary, as well as the names and places of articles can also be marked as keywords (free words). The so-called indexing refers to the process of subject analysis of documents and some features of retrieval significance, such as research objects, processing methods, experimental equipment, etc., and the identification of subject retrieval is given by using thesaurus. Document theme analysis is to find out the basic elements that constitute the document theme from the complex documents, so as to accurately index the required descriptors. Index is the premise of retrieval. Without the correct index, there is no correct retrieval. Scientific papers should index keywords according to the indexing method of descriptors, and standardize free words as descriptors as much as possible. 3 Basic principles of keyword indexing 3. 1 specificity principle A word can only express one theme concept as specificity. As long as the corresponding specific thesaurus is found in the thesaurus, it is not allowed to use the superordinate word (item S) or the subordinate word (item F) in the thesaurus; If you can't find a narrative directly corresponding to the theme concept, and the superordinate word is really consistent with the theme concept, you can choose. For example, "aircraft fire prevention" can be found in the thesaurus, so you must choose it first. The superordinate word "fire prevention" shall not be used for indexing, nor shall the two subject words "airplane" and "fire prevention" be used for indexing. ? 3.2 collocation principle: the collocation of narrative phrases should be conceptual collocation. Conceptual collocation includes two types:? Cross combination. Refers to two or two ... >>

Question 4: What do you mean by rolling iron flow? Rolling iron flow refers to our amiable and lovely soldiers. We call them Tieliu because they have an iron will, and no difficulty or obstacle can destroy them.

Problem 5: Broken roof is easy to fall, and the roof is very hard, so it is not easy to fall when caving, which often destroys the coal mining face. What does this sentence mean? It means: once the roof is broken, it is easy to collapse, but generally the roof will be periodically pressed, broken after pressing, and then collapsed in a large area, and the falling stones will crush the working face. . .

Question 6: What is a joint fire attack on enemy combat systems and other important targets with long-range fire as the basic means? It is the main means of high-tech local war. Usually, it is mainly based on the long-range precision strike force of various arms and services, and it is organized and implemented by means and methods such as information attack, missile attack, air assault, special destruction and space support, which has the characteristics of "non-contact combat". The purpose is to weaken the enemy's military strength and war potential, destroy its resistance will and create favorable conditions for subsequent operations by carrying out sudden and fierce fire assault on important targets in the enemy's combat system. In the Gulf War of 199 1 and several subsequent modern local wars, the US military took joint fire attack as an important means to win the war.

Question 7: What does Qin Bichu's death mean? "The death of Qin Bichu" means that Chu will definitely destroy Qin.

Qin was destroyed by the Chu people. Chen Sheng, Xiang Yu and Liu Bang were all Chu people.

"Although there are three clans in Chu, Qin will be Chu when it dies" is a famous saying against the Qin dynasty, which comes from Historical Records written by Sima Qian in the Western Han Dynasty. Biography of Xiang Yu. It means that even if there are only a few families left in Chu, Qin can be destroyed. Although the metaphor is small, you can succeed with great determination. It represents an emotional conviction.

Historical materials about the national uprising that overthrew the rule of Qin Dynasty are mainly recorded in Historical Records, especially the biographies of Xiang Yu, Gao Zu, Qin Chu's Moon Table, Chen She Family, Zhang Er Chen Yu and Tian Xian. Hai was the initiator of anti-Qin, and Chen Sheng's historical contribution was fully affirmed at that time and later generations. However, his fighting spirit and unshakable anti-Qin belief have not been clearly identified.

After Chen Sheng's death, the war against Qin took a sharp turn. Qin Jun's LianZhanLianJie, headed by Zhang Han, is invincible, and the great cause of anti-Qin is about to be destroyed. This time, Xiang Liang, the Chu people, took Chen Sheng as the seal, led the troops to cross Huai River, and collected Chen Ying, Lv Chen, Liu Bang and other troops. In order to show that he was Chen Sheng's orthodoxy, Xiang Liang overthrew Qin Jia, the king of Chu, and made Chu Huaiwang Sun Xin Chu Huaiwang. At that time, the power of Chu was far less than that of Chen Sheng in its heyday, but under the command of Xiang Liang, it actively sought to confront Qin Jun. Soon, Qin Jun was defeated in Dong 'a (now northeast of Yanggu, Shandong Province), Chengyang (now northeast of Heze, Shandong Province), Puyang and Qiu Yong (now Qixian, Henan Province), and Qin Jun's arrogance was defeated. From the beginning of his official career, Xiang Liang developed the idea of underestimating his enemy's paralysis, and was defeated and died by the reinforced Qin Jun. Chu Huaiwang assembled the armies of Xiang Yu, Liu Bang and Lv Chen and redeployed to attack the State of Qin. At that time, the commander-in-chief thought that Xiang Liang was defeated and Chu was careless, so he sent troops to attack Zhao. Thus, Zhao Di Julu (now Pingxiang, Hebei) became the main battlefield against Qin. After the defeat of Xiang Liang, the power of Chu was greatly weakened. Nevertheless, Chu Huaiwang drove his troops to the battlefield to fight against Qin: the main force of the Chu army was led by Yi Song to Zhao Chiyuan, and the other division was led by Liu Bang to explore Qin. From this point of view, Sima Qian put Chen Sheng's career in the pen until Xiang Liang established Chu Huaiwang's heart, [9] which is very insightful. This fully proves that Chu established by Xiang's family is indeed the legal system of Chen Sheng's spirit and career. With the heart of the king, this decision officially kicked off the Qin Dynasty.

Originally, Xiang Yu planned to join Liu Bang in the Western Expedition to destroy Qin and avenge the death of his uncle Xiang Liang, but Wang Huai refused. Xiang Yu was appointed as his deputy and led an army to save Zhao. Chu Shuai-he was awed by his great strength and stayed in Anyang (now southeast of Cao County, Shandong Province) for 46 days to avoid contact with Qin Jun. Xiang Yu was killed and led the Chu army to the battlefield of decisive battle with Qin State. Faced with the imposing manner, not only did the governors of all walks of life dare not make a move, but even Zhao's own peripheral forces, such as Zhang Ao, stayed put. Only the Chu army, under the command of Xiang Yu, joined forces and threw themselves into a battle that decided the fate of the world without hesitation. In the battle, the Chu army was brave and good at fighting, and finally defeated Qin under the giant deer, which not only defeated, but also made all the princes change their minds. Since then, Xiang Yu, as the commander-in-chief of the vassal coalition forces, has led troops to pursue Qin Jun, winning many battles. In the end, the allied forces completely destroyed Qin Jun's fighting spirit in the Sanhushui area, and Qin Jun's main force surrendered to the allied forces in July of three years in Qin Ershi. Without Chu's bloody battle, Xiang Yu's resolute determination and good command, the success of aid and the demise of Qin State would be unimaginable.

Liu Bang's westward advance is also the embodiment of Chu's determination to destroy Qin. The Chronicle of Emperor Gaozu said: "When it is, Qin Bing is powerful, and he often pushes his victory to the north. General Molly must enter the customs first. " This shows that the westward movement is an act of aggression divorced from reality. Under the premise of taking aiding Zhao as the main strategic goal, the number of people led by Liu Bang is very limited. Therefore, Chu Huaiwang granted Liu Bang the right to "take Wang Chen and Xiang Liang away". This is equivalent to letting Liu Bang find a way to solve the problem of military resources himself. The situation that Liu Bang faced was to fight from the base area, and his way of fighting was to fight and leave. Its situation is similar to that of Zhou Wenbu in Chen Sheng's period, but its strength is greatly inferior, and its alertness and combat effectiveness to the enemy are greater than that of Zhou Wenbu. However, these difficulties failed to frighten Liu Bang and his troops. They went west with the indomitable spirit of the Chu army and the determination to die in the state of Qin. The westward war was not smooth. Liu Bangbu won some battles, but he also met some difficult enemies and cities, such as Changyi (now northwest of Jinxiang, Shandong Province), Kaifeng and Luoyang, which were not captured. In this case, to the west ... >>

Question 8: What does millipede mean? Millipede: A reptile with many joints and feet. It is another name for Ma Lu. Its length is slightly flat, more than an inch long, and it consists of many links, each with one or two pairs. Break it in two, and the head and tail can still walk separately. It is often used to describe one's old country, hometown or prominent people. ② Common name of centipede.

Source: Ming? Xu Xuemo talks about returning to the garden dust: "A miser can get rich, but when something happens, he is a rat crossing the street;" A chivalrous man may lose his reputation, but when something goes wrong, he becomes a worm with a hundred feet. "

Example: The Complete Biography of Hu Xueyan by Levin? Red top businessman: "I also know that Songjiang Cao Gang is' ~, dead but not stiff', and I don't want to interfere."

Usage: as object and attribute; A force that cannot be described well.

Question 9: What does it mean to doubt life? Why doubt life? Because: years wrinkle the skin, but old age wrinkles the soul. Worry, fear and even self-doubt will destroy the spirit and hurt the vitality! However, listen to the inscription of former US President Bill Clinton: Youth is not a period of life, but a state of mind. Youth is inspiring ―― Clinton's motto: Youth is not a stage of life, but a state of mind. The essence of youth is not pink cheeks, red lips or flexible joints, but firm will, rich imagination, full emotions and a touch of coolness in the spring of life. The connotation of youth is the courage to overcome cowardice and the spirit of taking risks, rather than indolence. Many people in their sixties have such qualities more than those in their twenties. Although the age increases, it does not age; The reason for aging is to give up the pursuit of ideals! Everyone has a radio station in his heart. As long as we receive messages of beauty, hope, happiness, courage and strength from others and the creator, we will remain young forever. When the aerials are down, your spirit is covered with the frost of cynicism and sadness. At this time, even a 20-year-old man will feel old. However, as long as your aerials are up and you receive waves of optimism, you will feel young even when you are over 80 years old.