Cho các kết luận

(1) Độ dinh dưỡng trong phân lân được đánh giá bằng hàm lượng nguyên tố photpho.

(2) Công thức chung của oleum là H₂SO₄.nSO₃.

(3) SiO₂ có thể tan được trong các dung dịch axit thông thường như H₂SO₄, HCl, HNO₃.

(4) Au, Ag, Pt là các kim loại không tác dụng với oxi.

(5) Dẫn H₂S qua dung dịch Pb(NO₃)₂ có kết tủa xuất hiện.

(6) CO có thể khử được các oxit như CuO, Fe₃O₄ đốt nóng.

Số kết luận đúng là:

A. 6.

B. 4

C. 5

D. 3

Hợp chất hữu cơ X có công thức C₂H₈N₂O₄. Khi cho 12,4 gam X tác dụng với 200ml dung dịch NaOH 1,5M thu được 4,48 lít (đktc) khí X làm xanh quỳ tìm ẩm. Cô cạn dung dịch sau phản ứng thu được m gam chất rắn khan. Giá trị của m là

A. 16,2

B. 17,4

C. 17,2

D. 13,4

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.

The flight was called off because there was a severe storm

A. cancelled

B. postponed

C. scheduled 

D. interrupted

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.

The students complained that the teacher was inexperienced.

A. The students praised the teacher for his experience. 

B. The teacher was favored because of his inexperience. 

C. The teacher was not supported for his inexperience. 

D. The teacher was popular despite his inexperience.

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 from 35 to 42.

The United States Department of Education describes “giftedness” as exceptionally advanced performance or the potential for outstanding performance in intellectual, creative leadership, artistic, or specific academic fields. Children who demonstrate outstanding talents come from all social, cultural, and economic groups.

Educators believe that gifted students require special education services because their learning needs differ significantly from those of the general population. They learn more rapidly and are able to understand more abstract and complex ideas. They are also able to transform existing knowledge into new and useful forms, and to create new knowledge recognized for its originality, complexity, and elegance. Special education services and facilities for gifted children may enhance these abilities. In addition, some gifted learners may require special counseling services to address social or emotional adjustment issues that are complicated by their exceptional abilities.

Many regular elementary and secondary schools in the United States offer special programs designed specifically to meet the needs of gifted students. Some schools provide specialized education programs to gifted children exclusively. These schools offer advanced education in mathematics, science, technology, the arts, or other academic disciplines. Many schools rely on intelligence tests to identify gifted students. However, most guidelines for determining giftedness recommend the use of a combination of standardized test scores, rating systems developed by individual schools, classroom observation records, and performance assessments.

Gifted children may study a specially modified curriculum or may progress through academic subjects at an accelerated pace. Acceleration involves adapting education programs so that students may progress through particular subject material quicker than usual. These modifications may take place within the regular classroom setting or they may involve changing the child’s placement in school. Some gifted children gain early entrance to kindergarten, skip grades, enter college earlier than usual, or take specific courses with older children. Ideal programs for gifted students consider the individual needs of children and offer multiple options for services. These programs generally involve both advanced course materials and acceleration.

The word “those” in paragraph 2 is closest in meaning to _________.

A. educators

B. students

C. education services

D. learning needs

Tại sao tỉ trọng của ngành công nghiệp trong cơ cấu GDP là một trong những tiêu chí quan trọng để đánh giá trình độ phát triển kinh tế?

Em hãy nêu rõ vai trò và đặc điểm của ngành chăn nuôi.

Ở địa phương em hiện nay đang có những hình thức và hướng chăn nuôi nào?

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 from 30 to 34.                                          

BASKETBALL

Although he created the game of basketball at the YMCA in Springfield, Massachusetts, Dr. James A Naismith was a Canadian. Working as a physical education instructor at the International YMCA, now Springfield College, Dr. Naismith noticed a lack of interest in exercise among students during the wintertime. The New England winters were fierce, and the students balked at participating in outdoor activities. Naismith determined a fast-moving game that could be played indoors would fill a void after the baseball and football seasons had ended.

First, he attempted to adapt outdoor games such as soccer and rugby to indoor play, but he soon found them unsuitable for confined areas. Finally, he determined that he would have to invent a game.

In December of 1891, Dr. Naismith hung two old peach baskets at either end of the gymnasium at the school, and, using a soccer ball and nine players on each side, organized the first basketball game. The early rules allowed three points for each basket and made running with the ball violation. Every time a goal was made, someone had to climb a ladder to retrieve the ball.

Nevertheless, the game became popular. In less than a year, basketball was being played in both the United States and Canada. Five years later, a championship tournament was staged in New York City, which was won by the Brooklyn Central YMCA.

The teams had already been reduced to seven players, and five became standard in 1897 season. When basketball was introduced as a demonstration sport in the 1904 Olympic Games in St. Luis, it quickly spread throughout the world. In 1906, a metal hoop was used for the first time to replace the basket, but the name basketball has remained.

What does this passage mainly discuss?

A. Dr. James Naismith 

B. The development of basketball 

C. The YMCA athletic program 

D. The Olympic Games in St. Luis in 1904