This is a difficult question, so only _______ students can answer it.

Hệ số của trong khai triển thành đa thức là:

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

If we believe that clothing has to do with covering the body, and costume with the choice of a particular form of garment for a particular use, then we can say that clothing depend primarily on such physical conditions as climate, health, and textile manufacture, whereas costume reflect social factors such as religious beliefs, aesthetics, personal status, and the wish to be distinguished from or to emulate our fellows.

The ancient Greeks and the Chinese believed that we first covered our bodies for some physical reason such as protecting ourselves from the weather elements. Ethnologists and psychologists have invoked psychological reasons: modesty in the case of ancients, and taboo, magical influence and the desire to please for the moderns.

In early history, costume must have fulfilled a function beyond that of simple utility, perhaps through some magical significance, investing primitive man with the attributes of other creatures. Ornaments identified the wearer with animals, gods, heroes or other men. This identification remains symbolic in more sophisticated societies. We should bear in mind that the theater has its distant origins in sacred performances, and in all period children at play have worn disguises, so as to adapt gradually to adult life.

Costume helped inspire fear or impose authority. For a chieftain, costume embodied attributes expressing his power, while a warrior’s costume enhanced his physical superiority and suggested he was superhuman. In more recent times, professional or administrative costume has been devised to distinguish the wearer and express personal or delegated authority; this purpose is seen clearly in the judge’s robes and the police officer’s uniform. Costume denotes power, and since power is usually equated with wealth, costume came to be an expression of social caste and material prosperity. Military uniform denotes rank and is intended to intimidate, to protect the body and to express membership in a group. At the bottom of the scale, there are such compulsory costumes as the convict’s uniform. Finally, costume can possess a religious significance that combines various elements: an actual or symbolic identification with a god, the desire to express this in earthly life, and the desire to enhance the wearer’s position of respect.

Question 42: The word “denotes” in paragraph 4 is closest in meaning to_______.         

Cho là số nguyên dương thỏa mãn . Số hạng không chứa trong khai triển của biểu thức , với bằng?

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

If we believe that clothing has to do with covering the body, and costume with the choice of a particular form of garment for a particular use, then we can say that clothing depend primarily on such physical conditions as climate, health, and textile manufacture, whereas costume reflect social factors such as religious beliefs, aesthetics, personal status, and the wish to be distinguished from or to emulate our fellows.

The ancient Greeks and the Chinese believed that we first covered our bodies for some physical reason such as protecting ourselves from the weather elements. Ethnologists and psychologists have invoked psychological reasons: modesty in the case of ancients, and taboo, magical influence and the desire to please for the moderns.

In early history, costume must have fulfilled a function beyond that of simple utility, perhaps through some magical significance, investing primitive man with the attributes of other creatures. Ornaments identified the wearer with animals, gods, heroes or other men. This identification remains symbolic in more sophisticated societies. We should bear in mind that the theater has its distant origins in sacred performances, and in all period children at play have worn disguises, so as to adapt gradually to adult life.

Costume helped inspire fear or impose authority. For a chieftain, costume embodied attributes expressing his power, while a warrior’s costume enhanced his physical superiority and suggested he was superhuman. In more recent times, professional or administrative costume has been devised to distinguish the wearer and express personal or delegated authority; this purpose is seen clearly in the judge’s robes and the police officer’s uniform. Costume denotes power, and since power is usually equated with wealth, costume came to be an expression of social caste and material prosperity. Military uniform denotes rank and is intended to intimidate, to protect the body and to express membership in a group. At the bottom of the scale, there are such compulsory costumes as the convict’s uniform. Finally, costume can possess a religious significance that combines various elements: an actual or symbolic identification with a god, the desire to express this in earthly life, and the desire to enhance the wearer’s position of respect.

Question 43: Which of the following would most likely NOT be reflected in a person's costume, as it is defined in the passage?         

Cho biểu thức . Biết và . Giá trị của  bằng?                         

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

Dodder is an unusual and unwanted plant that attacks other plants. Except for its flowers, the plant looks like spaghetti noodles. Its almost leafless, thread–like stems hang down atop other plants that dodder needs to stay alive. Dodder does not produce its own food. Instead, it steals it from other plants. It feeds by sucking juices from the plant it is wrapped around, often making its host very weak or even killing it.

Dodder can find other plants by their smell. When a dodder seedling starts growing, it follows the scent of plants it prefers, like tomato plants, potato plants, or other farm crops. Unlike most plants that usually grow in the direction of light or warmth, a dodder plant will grow in the direction of, for example, tomato odor––if a tomato happens to be growing nearby.

However, a young dodder plant must find a host plant quickly. If it cannot catch a whiff of a potential host within a few days, it will dry up and disappear—even if there is plenty of water around. Once it finds a host, the young dodder plant will attach itself to it and start growing faster. At that point, the dodder plant will drop its root.

Dodder is thus a difficult weed to manage and a real headache for farmers. When it does get out of hand, dodder can greatly reduce a farmer’s harvest or even destroy crops completely. Before sowing their produce, farmers in warm parts of the world often check to make sure no unwanted dodder seeds have intermingled with their crop seeds. This is a good way to stop dodder plants from sneaking their way into a crop field.

Question: Why does the author mention spaghetti?             

Tìm hệ số của sau khi khai triển và rút gọn các đơn thức đồng dạng của , .

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

Dodder is an unusual and unwanted plant that attacks other plants. Except for its flowers, the plant looks like spaghetti noodles. Its almost leafless, thread–like stems hang down atop other plants that dodder needs to stay alive. Dodder does not produce its own food. Instead, it steals it from other plants. It feeds by sucking juices from the plant it is wrapped around, often making its host very weak or even killing it.

Dodder can find other plants by their smell. When a dodder seedling starts growing, it follows the scent of plants it prefers, like tomato plants, potato plants, or other farm crops. Unlike most plants that usually grow in the direction of light or warmth, a dodder plant will grow in the direction of, for example, tomato odor––if a tomato happens to be growing nearby.

However, a young dodder plant must find a host plant quickly. If it cannot catch a whiff of a potential host within a few days, it will dry up and disappear—even if there is plenty of water around. Once it finds a host, the young dodder plant will attach itself to it and start growing faster. At that point, the dodder plant will drop its root.

Dodder is thus a difficult weed to manage and a real headache for farmers. When it does get out of hand, dodder can greatly reduce a farmer’s harvest or even destroy crops completely. Before sowing their produce, farmers in warm parts of the world often check to make sure no unwanted dodder seeds have intermingled with their crop seeds. This is a good way to stop dodder plants from sneaking their way into a crop field.

Question: The word it refers to___________.           

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

On March 15, Dunes View Middle School held a contest for school bands. Student bands tried out for the opportunity to perform at the school picnic, which will be held at the end of June. The winner of the contest was the band called Four Square. “We’re very proud that we won the contest and are excited to perform at the picnic,” says Peter Zandt, who plays the guitar in the band. “And since we hope to perform someday at other local places, like restaurants and parks, this will be a great first step.”

The contest was the creation of music teacher Mr. Lopez and drama teacher Ms. Cho. The two thought of the idea while discussing recent years’ school picnics. “The picnic is one of the biggest events of the year, but it has become a bit formulaic", said Ms. Cho. “The activities are the same every year. We thought that a performance by a student band would make the school picnic more interesting and fun.” Mr. Lopez, Ms. Cho, and three other teachers judged the contest, which took place in the gym. Eight student bands signed up to audition. The bands varied in their musical forms: There were several rock bands, a folk band, and even a jazz band. “I’m disappointed that my band didn’t win, but I think the judges made the right choice", says student Marisol Varga, a member of the folk trio called The Bell Girls. “Four Square is really good.”

To see if the bands could present a wide range of musical skills, the teachers asked them each to prepare two songs: One song with original words, and another in which students played instrumental music only. The judges finally chose the band Four Square as the winner of the contest. Four Square is a rock band with an unusual twist: It includes a violin player! The members of Four Square write their own songs and practice three times a week after school. Students and teachers agreed that the band competition was a big success. All are looking forward to the school picnic in June.  

Question: According to the article, what is unusual about the band Four Square?         

Cho đa giác đều có đỉnh. Người ta lập một tứ giác có đỉnh là đỉnh của . Tính số tứ giác được lập thành mà không có cạnh nào là cạnh của .