Cho số phức  thỏa mãn . Giá trị lớn nhất  và giá trị nhỏ nhất  của biểu thức  lần lượt là

Read the following passage and mark the letter A, B, C,or D on your answer sheet to indicate the correct answer to each of the questions:

The goal of Internet-based encyclopedia Wikipedia (www.wikipedia.org) is to give everyone on the planet access to information. Like other encyclopedias, Wikipedia contains lots of information: more than 2.5 million articles in 200 different languages covering just about every subject. Unlike other encyclopedias, however, Wikepedia is not written by experts, but by ordinary people. These writers are not paid and their names are not published. They contribute to Wikipedia simply because they want to share their knowledge. Encyclopedias began in ancient times as collections of writings about all aspects of human knowledge. The word itself comes from ancient Greek, and means “a complete general education”. Real popularity for encyclopedias came in the nineteenth century in Europe and the United States, with the publication of encyclopedias written for ordinary readers. With the invention of the CD-ROM, the same amount of information could be put on a few computer discs. Then with the Internet, it became possible to create an online encyclopedia that could be constantly updated, like Microsoft’s Encarta. However, even Internet-based encyclopedias like Encarta were written by paid experts. At first, Wikipedia, the brainchild of Jimmy Wales, a businessman in Chicago, was not so different from these. In 2001, he had the idea for an Internet-based encyclopedia that would provide information quickly and easily to everyone. Furthermore, that information would be available free, unlike other Internet encyclopedias at that time. But Wales, like everyone else, believed that people with special knowledge were needed to write the articles, and so he began by hiring experts. He soon changed his approach, however, as it took them a long time to finish their work. He decided to open up the encyclopedia in a radical new way, so that everyone would have access not only to the information, but also to the process of putting this information online. To do this, he used what is known as “Wiki” software (from the Hawaiian word for “fast”), which allows users to create or alter content on web page. The system is very simple: When you open the web site, you can simply search for information or you can log on to become a writer or editor of articles. If you find an article that interests you – about your hometown, for example – you can correct it or expand it. This process goes on until no one is interested in making any more changes.  

Question: The word “approach” in the third paragraph of the passage means_________.                 

Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions:

There is a strange paradox to the success of the Asian education model. On the one hand, class sizes are huge by Western standards with between 30 and 40 students per class, in countries like Japan and Korea. On the other hand, school children in developed Asian economies rank among the highest in the world for academic achievement in the areas of science and mathematics, especially on standardised tests. Meanwhile, British secondary school students fail to shine in conditions most educational researchers would say are far more likely to help them succeed. Classroom management seems to be easier in places like Korea, and perhaps lessons are more effective as a direct consequence. After all, we are only too aware of the decline in discipline standards in our own school: belligerent and disrespectful students appear to be the norm these days. Teachers in Britain seem powerless to control what happens anymore. Surely this situation cannot create a very effective learning environment, so perhaps the number of students is far less relevant than is the manner in which they conduct themselves. But there are other factors to consider, too. There is the home environment. The traditional family unit still remains relatively intact in Korea. Few children come from broken homes, so there is a sense of security, safety and trust both at home and at school. In Britain meanwhile, one in every two marriages fails and divorce rates are sky high. Perhaps children struggle to cope with unstable family conditions and their only way to express their frustration is by misbehaving at school. But while the Japanese, Korean and Asian models generally do seem to produce excellent results, the statistics don’t tell the whole truth. You see, behind those great maths and science scores, there is a quite remarkable work ethic. Asian students tend to put their education before literally everything else. They do very few extracurricular activities and devote far more time to their studies than their British peers. There has been a lot of attention and praise given to these Asian models and their “impressive” statistics of late. And without question, some of this praise is justified, but it seems to be a case of two extremes in operation here. At one end, there is the discipline and unbelievably hard work ethic of the Asian students – success in education before all else. At the other end, British students at times appear careless and extremely undisciplined by comparison, but at least they do have the free time to enjoy their youth and explore their interests. Is either system better outright? Or is it perhaps about time we stopped comparing and started trying to combine the best bits of both, so that we can finally offer our students a balanced, worthwhile education?

Question: What does the writer suggest might make lessons in Korean schools more successful than in Britain?         

Tổng các hệ số trong khai triển  là

Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions:

There is a strange paradox to the success of the Asian education model. On the one hand, class sizes are huge by Western standards with between 30 and 40 students per class, in countries like Japan and Korea. On the other hand, school children in developed Asian economies rank among the highest in the world for academic achievement in the areas of science and mathematics, especially on standardised tests. Meanwhile, British secondary school students fail to shine in conditions most educational researchers would say are far more likely to help them succeed. Classroom management seems to be easier in places like Korea, and perhaps lessons are more effective as a direct consequence. After all, we are only too aware of the decline in discipline standards in our own school: belligerent and disrespectful students appear to be the norm these days. Teachers in Britain seem powerless to control what happens anymore. Surely this situation cannot create a very effective learning environment, so perhaps the number of students is far less relevant than is the manner in which they conduct themselves. But there are other factors to consider, too. There is the home environment. The traditional family unit still remains relatively intact in Korea. Few children come from broken homes, so there is a sense of security, safety and trust both at home and at school. In Britain meanwhile, one in every two marriages fails and divorce rates are sky high. Perhaps children struggle to cope with unstable family conditions and their only way to express their frustration is by misbehaving at school. But while the Japanese, Korean and Asian models generally do seem to produce excellent results, the statistics don’t tell the whole truth. You see, behind those great maths and science scores, there is a quite remarkable work ethic. Asian students tend to put their education before literally everything else. They do very few extracurricular activities and devote far more time to their studies than their British peers. There has been a lot of attention and praise given to these Asian models and their “impressive” statistics of late. And without question, some of this praise is justified, but it seems to be a case of two extremes in operation here. At one end, there is the discipline and unbelievably hard work ethic of the Asian students – success in education before all else. At the other end, British students at times appear careless and extremely undisciplined by comparison, but at least they do have the free time to enjoy their youth and explore their interests. Is either system better outright? Or is it perhaps about time we stopped comparing and started trying to combine the best bits of both, so that we can finally offer our students a balanced, worthwhile education?   

Question: The word “unstable ” in paragraph 3 can be best replaced by_______.         

Tìm số hạng chứa  trong khai triển  thành đa thức  

Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions:

There is a strange paradox to the success of the Asian education model. On the one hand, class sizes are huge by Western standards with between 30 and 40 students per class, in countries like Japan and Korea. On the other hand, school children in developed Asian economies rank among the highest in the world for academic achievement in the areas of science and mathematics, especially on standardised tests. Meanwhile, British secondary school students fail to shine in conditions most educational researchers would say are far more likely to help them succeed. Classroom management seems to be easier in places like Korea, and perhaps lessons are more effective as a direct consequence. After all, we are only too aware of the decline in discipline standards in our own school: belligerent and disrespectful students appear to be the norm these days. Teachers in Britain seem powerless to control what happens anymore. Surely this situation cannot create a very effective learning environment, so perhaps the number of students is far less relevant than is the manner in which they conduct themselves. But there are other factors to consider, too. There is the home environment. The traditional family unit still remains relatively intact in Korea. Few children come from broken homes, so there is a sense of security, safety and trust both at home and at school. In Britain meanwhile, one in every two marriages fails and divorce rates are sky high. Perhaps children struggle to cope with unstable family conditions and their only way to express their frustration is by misbehaving at school. But while the Japanese, Korean and Asian models generally do seem to produce excellent results, the statistics don’t tell the whole truth. You see, behind those great maths and science scores, there is a quite remarkable work ethic. Asian students tend to put their education before literally everything else. They do very few extracurricular activities and devote far more time to their studies than their British peers. There has been a lot of attention and praise given to these Asian models and their “impressive” statistics of late. And without question, some of this praise is justified, but it seems to be a case of two extremes in operation here. At one end, there is the discipline and unbelievably hard work ethic of the Asian students – success in education before all else. At the other end, British students at times appear careless and extremely undisciplined by comparison, but at least they do have the free time to enjoy their youth and explore their interests. Is either system better outright? Or is it perhaps about time we stopped comparing and started trying to combine the best bits of both, so that we can finally offer our students a balanced, worthwhile education?   

Question: According to the writer, Asian students_______.         

Số hạng không chứa  trong khai triển  là:                 

Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions:

There is a strange paradox to the success of the Asian education model. On the one hand, class sizes are huge by Western standards with between 30 and 40 students per class, in countries like Japan and Korea. On the other hand, school children in developed Asian economies rank among the highest in the world for academic achievement in the areas of science and mathematics, especially on standardised tests. Meanwhile, British secondary school students fail to shine in conditions most educational researchers would say are far more likely to help them succeed. Classroom management seems to be easier in places like Korea, and perhaps lessons are more effective as a direct consequence. After all, we are only too aware of the decline in discipline standards in our own school: belligerent and disrespectful students appear to be the norm these days. Teachers in Britain seem powerless to control what happens anymore. Surely this situation cannot create a very effective learning environment, so perhaps the number of students is far less relevant than is the manner in which they conduct themselves. But there are other factors to consider, too. There is the home environment. The traditional family unit still remains relatively intact in Korea. Few children come from broken homes, so there is a sense of security, safety and trust both at home and at school. In Britain meanwhile, one in every two marriages fails and divorce rates are sky high. Perhaps children struggle to cope with unstable family conditions and their only way to express their frustration is by misbehaving at school. But while the Japanese, Korean and Asian models generally do seem to produce excellent results, the statistics don’t tell the whole truth. You see, behind those great maths and science scores, there is a quite remarkable work ethic. Asian students tend to put their education before literally everything else. They do very few extracurricular activities and devote far more time to their studies than their British peers. There has been a lot of attention and praise given to these Asian models and their “impressive” statistics of late. And without question, some of this praise is justified, but it seems to be a case of two extremes in operation here. At one end, there is the discipline and unbelievably hard work ethic of the Asian students – success in education before all else. At the other end, British students at times appear careless and extremely undisciplined by comparison, but at least they do have the free time to enjoy their youth and explore their interests. Is either system better outright? Or is it perhaps about time we stopped comparing and started trying to combine the best bits of both, so that we can finally offer our students a balanced, worthwhile education?   

Question: British secondary school students_______.         

Trong khai triển nhị thức Niu-tơn ,tổng bằng: