Nhận xét nào đúng về giọng điệu của hai câu thơ nói về sự gian khổ, khắc nghiệt của cuộc hành quân:
                 "Anh bạn dãi dầu không bước nữa
                  Gục lên súng mũ bỏ quên đời"
                                         ("Tây Tiến" - Quang Dũng)

Công thức tính số tổ hợp là:         

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

Scientists do not yet thoroughly understand just how the body of an individual becomes sensitive to a substance that is harmless or even wholesome for the average person. Milk, wheat, and egg, for example, rank among the most healthful and widely used foods. Yet these foods can cause persons sensitive to them to suffer greatly. At first, the body of the individual is not harmed by coming into contact with the substance. After a varying interval of time, usually longer than a few weeks, the body becomes sensitive to it, and an allergy has begun to develop. Sometimes it's hard to figure out if you have a food allergy, since it can show up so many different ways. Your symptoms could be caused by many other problems. You may have rashes, hives, joint pains, mimicking arthritis, headaches, irritability, or depression. The most common food allergies are to milk, eggs, seafood, wheat, nuts, seeds, chocolate, oranges, and tomatoes. Many of these allergies will not develop if these foods are not fed to an infant until her or his intestines mature at around seven months. Breast milk also tends to be protective. Migraines can be set off by foods containing tyramine, phenathylamine, monosodium glutamate, or sodium nitrate. Common foods which contain these are chocolate, aged cheeses, sour cream, red wine, pickled herring, chicken livers, avocados, ripe bananas, cured meats, many Oriental and prepared foods (read the labels!). Some people have been successful in treating their migraines with supplements of B-vitamins, particularly B6 and niacin. Children who are hyperactive may benefit from eliminating food additives, especially colorings, and foods high in salicylates from their diets. A few of these are almonds, green peppers, peaches, tea, grapes. This is the diet made popular by Benjamin Feingold, who has written the book “Why your Child is Hyperactive”. Other researchers have had mixed results when testing whether the diet is effective.  

Question According to the article, the Feingold diet is NOT ___________.         

Công thức tính số tổ hợp chập của phần tử 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:

Baseball evolved from a number of different ball-and stick games (paddle ball, trap ball, one-old-cat, rounders, and town ball) originating in England. As early as the American Revolution, it was noted that troops played “baseball” in their free time. In 1845 Alexander Cartwright formalized the New York Knickerbockers version of the game: a diamond shaped infield, with bases ninety feet apart, three strikers – you’re – out, batter out on a caught ball, three outs per inning, a nine man team. “The New York Game” spread rapidly, replacing earlier localized forms. From its beginnings, baseball was seen as a way of satisfying the recreational needs of an increasingly urban – industrial society. At its inception it was it was played by and for gentlemen. A club might consist of 40 members. The president would appoint two captains who would choose teams from among the members. Games were played on Monday and Thursday afternoons, with the losers often providing a lavish evening’s entertainments for the winners. During the 1850 - 70 period the game was changing, however, with increasing commercialism (charging admission), under – the – table payments to exceptional to players, and gambling on the outcome of games. By 1868 it was said that a club would have their regular professional ten, an amateur first - nine, and their "muffins" (the gently duffers who once ran the game). Beginning with the first openly all – salaried team (Cincinnati’s Red Stocking Club) in 1869, the 1870 - 1890 period saw the complete professionalization of baseball, including formation of the National Association of Professional baseball players in 1871. The National League of Professional Baseball Clubs was formed in 1876, run by business-minded invertors in joint-stock company clubs. The 1880s has been called Major League Baseball’s “Golden Age”. Profits soared, player’s salaries rose somewhat, a season of 84 games became one of 132, a weekly periodical “The sporting News” came into being, wooden stadiums with double-deck stands replaced open fields, and the standard refreshment became hot dogs, soda pop and peanuts. In 1900 the Western League based in the growing cities of the Mid-west proclaimed itself the American League.

Question 18: Which of the following is NOT mentioned as a feature of the 1880s “Golden Age”?         

Số hạng tổng quát trong khai triển của 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:

Baseball evolved from a number of different ball-and stick games (paddle ball, trap ball, one-old-cat, rounders, and town ball) originating in England. As early as the American Revolution, it was noted that troops played “baseball” in their free time. In 1845 Alexander Cartwright formalized the New York Knickerbockers version of the game: a diamond shaped infield, with bases ninety feet apart, three strikers – you’re – out, batter out on a caught ball, three outs per inning, a nine man team. “The New York Game” spread rapidly, replacing earlier localized forms. From its beginnings, baseball was seen as a way of satisfying the recreational needs of an increasingly urban – industrial society. At its inception it was it was played by and for gentlemen. A club might consist of 40 members. The president would appoint two captains who would choose teams from among the members. Games were played on Monday and Thursday afternoons, with the losers often providing a lavish evening’s entertainments for the winners. During the 1850 - 70 period the game was changing, however, with increasing commercialism (charging admission), under – the – table payments to exceptional to players, and gambling on the outcome of games. By 1868 it was said that a club would have their regular professional ten, an amateur first - nine, and their "muffins" (the gently duffers who once ran the game). Beginning with the first openly all – salaried team (Cincinnati’s Red Stocking Club) in 1869, the 1870 - 1890 period saw the complete professionalization of baseball, including formation of the National Association of Professional baseball players in 1871. The National League of Professional Baseball Clubs was formed in 1876, run by business-minded invertors in joint-stock company clubs. The 1880s has been called Major League Baseball’s “Golden Age”. Profits soared, player’s salaries rose somewhat, a season of 84 games became one of 132, a weekly periodical “The sporting News” came into being, wooden stadiums with double-deck stands replaced open fields, and the standard refreshment became hot dogs, soda pop and peanuts. In 1900 the Western League based in the growing cities of the Mid-west proclaimed itself the American League.

Question 19: The word “itself” in line 24 refers to _______        

Giải phương trình .         

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:

Baseball evolved from a number of different ball-and stick games (paddle ball, trap ball, one-old-cat, rounders, and town ball) originating in England. As early as the American Revolution, it was noted that troops played “baseball” in their free time. In 1845 Alexander Cartwright formalized the New York Knickerbockers version of the game: a diamond shaped infield, with bases ninety feet apart, three strikers – you’re – out, batter out on a caught ball, three outs per inning, a nine man team. “The New York Game” spread rapidly, replacing earlier localized forms. From its beginnings, baseball was seen as a way of satisfying the recreational needs of an increasingly urban – industrial society. At its inception it was it was played by and for gentlemen. A club might consist of 40 members. The president would appoint two captains who would choose teams from among the members. Games were played on Monday and Thursday afternoons, with the losers often providing a lavish evening’s entertainments for the winners. During the 1850 - 70 period the game was changing, however, with increasing commercialism (charging admission), under – the – table payments to exceptional to players, and gambling on the outcome of games. By 1868 it was said that a club would have their regular professional ten, an amateur first - nine, and their "muffins" (the gently duffers who once ran the game). Beginning with the first openly all – salaried team (Cincinnati’s Red Stocking Club) in 1869, the 1870 - 1890 period saw the complete professionalization of baseball, including formation of the National Association of Professional baseball players in 1871. The National League of Professional Baseball Clubs was formed in 1876, run by business-minded invertors in joint-stock company clubs. The 1880s has been called Major League Baseball’s “Golden Age”. Profits soared, player’s salaries rose somewhat, a season of 84 games became one of 132, a weekly periodical “The sporting News” came into being, wooden stadiums with double-deck stands replaced open fields, and the standard refreshment became hot dogs, soda pop and peanuts. In 1900 the Western League based in the growing cities of the Mid-west proclaimed itself the American League.

Question 16: Which of the following is true of the way the game was played by wealthy gentlemen at its inception?         

Tìm hệ số của trong khai triển .         

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:

Baseball evolved from a number of different ball-and stick games (paddle ball, trap ball, one-old-cat, rounders, and town ball) originating in England. As early as the American Revolution, it was noted that troops played “baseball” in their free time. In 1845 Alexander Cartwright formalized the New York Knickerbockers version of the game: a diamond shaped infield, with bases ninety feet apart, three strikers – you’re – out, batter out on a caught ball, three outs per inning, a nine man team. “The New York Game” spread rapidly, replacing earlier localized forms. From its beginnings, baseball was seen as a way of satisfying the recreational needs of an increasingly urban – industrial society. At its inception it was it was played by and for gentlemen. A club might consist of 40 members. The president would appoint two captains who would choose teams from among the members. Games were played on Monday and Thursday afternoons, with the losers often providing a lavish evening’s entertainments for the winners. During the 1850 - 70 period the game was changing, however, with increasing commercialism (charging admission), under – the – table payments to exceptional to players, and gambling on the outcome of games. By 1868 it was said that a club would have their regular professional ten, an amateur first - nine, and their "muffins" (the gently duffers who once ran the game). Beginning with the first openly all – salaried team (Cincinnati’s Red Stocking Club) in 1869, the 1870 - 1890 period saw the complete professionalization of baseball, including formation of the National Association of Professional baseball players in 1871. The National League of Professional Baseball Clubs was formed in 1876, run by business-minded invertors in joint-stock company clubs. The 1880s has been called Major League Baseball’s “Golden Age”. Profits soared, player’s salaries rose somewhat, a season of 84 games became one of 132, a weekly periodical “The sporting News” came into being, wooden stadiums with double-deck stands replaced open fields, and the standard refreshment became hot dogs, soda pop and peanuts. In 1900 the Western League based in the growing cities of the Mid-west proclaimed itself the American League.

Question 17: According to the second paragraph, all of the following are true except ______