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3 tháng 1 2022

 

1) 69,000 and 70,000
2) 11,000 and 11,101
3) 2010 and 2008
4) 312 and 321
5) 50 and 15

 

3 tháng 1 2022

69,000

11,000

2008

312

15

3 tháng 1 2022

1.69,008

2.11,100

3.210

4.5210

5.17,320

3 tháng 1 2022

4,099

4,567 = 4,567

68,331

12,158

2,500

3 tháng 1 2022

1.&gt

2.=

3.&lt

4.&lt

5.&gt

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 following questions. Atomic were once thought to be fundamental pieces of matter, but they are in turn made of smaller subatomic particles There are three major subatomic particles neutrons, protons, and electronic. Protons and neutrons can be broken into even smaller units, but these smaller units not occur naturally in nature and are thought to only be produced in...
Đọc tiếp

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 following questions.

Atomic were once thought to be fundamental pieces of matter, but they are in turn made of smaller subatomic particles There are three major subatomic particles neutrons, protons, and electronic. Protons and neutrons can be broken into even smaller units, but these smaller units not occur naturally in nature and are thought to only be produced in manmade particle accelerators and perhaps in extreme stellar events like supernovas. The structure of an atom can best be described as a small solar system, with the neutrons at the center and the electrons circling them in various orbits, just as the planets circle the sun. In reality, the structure of an atom is far more complex, because the laws of physics are fundamentally different at the atomic level than at the level of the observable word. The true nature of atomic structure can only be expressed accurately through complex mathematical formulas. This explanation, however, is of little use to most average people.

Protons and neutrons have nearly equal mass and size, but protons carry a positive electrical charge, while neutrons carry no charge at all. Protons and neutrons are bound together by the strong nuclear force, one of the four basic forces in the universe. Protons and neutrons give atoms some of their most basic properties. Elements are defined by two numbers: their atomic number, which is equal to the number of protons they have, and their atomic weight, which is equal to total number of their neutrons and protons. In most lighter atoms, the number of neutrons and protons is equal, and the element is stable. In heavier atoms, however, there are more neutrons than protons, and the element is unstable, eventually losing neutrons through radioactive decay until a neutral state is reached.

According to paragraph 2, an atom's atomic number is determined by __________. 

A. the sum of its protons and electrons 

B. the difference in the mass of its neutrons and protons 

C. the strength of the bond between its protons and neutrons 

D. the total number of protons it has 

1
9 tháng 8 2018

Chọn D

Kiến thức: Đọc hiểu

Giải thích:

Theo đoạn 2, số lượng nguyên tử của một nguyên tố được xác định bởi __________.

  A. tổng số proton và electron của nó

  B. sự khác biệt về khối lượng giữa nơtron và proton của nó

  C. sức mạnh của liên kết giữa các proton và nơtron của nó

  D. tổng số proton nó có

Thông tin: Elements are defined by two numbers: their atomic number, which is equal to the number of protons they have, and their atomic weight, which is equal to total number of their neutrons and protons.

Tạm dịch: Các nguyên tố được xác định bởi hai con số: số lượng nguyên tử, bằng số lượng proton mà chúng có và trọng lượng nguyên tử, bằng tổng số nơtron và proton.

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 following questions. Atomic were once thought to be fundamental pieces of matter, but they are in turn made of smaller subatomic particles There are three major subatomic particles neutrons, protons, and electronic. Protons and neutrons can be broken into even smaller units, but these smaller units not occur naturally in nature and are thought to only be produced in...
Đọc tiếp

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 following questions.

Atomic were once thought to be fundamental pieces of matter, but they are in turn made of smaller subatomic particles There are three major subatomic particles neutrons, protons, and electronic. Protons and neutrons can be broken into even smaller units, but these smaller units not occur naturally in nature and are thought to only be produced in manmade particle accelerators and perhaps in extreme stellar events like supernovas. The structure of an atom can best be described as a small solar system, with the neutrons at the center and the electrons circling them in various orbits, just as the planets circle the sun. In reality, the structure of an atom is far more complex, because the laws of physics are fundamentally different at the atomic level than at the level of the observable word. The true nature of atomic structure can only be expressed accurately through complex mathematical formulas. This explanation, however, is of little use to most average people.

Protons and neutrons have nearly equal mass and size, but protons carry a positive electrical charge, while neutrons carry no charge at all. Protons and neutrons are bound together by the strong nuclear force, one of the four basic forces in the universe. Protons and neutrons give atoms some of their most basic properties. Elements are defined by two numbers: their atomic number, which is equal to the number of protons they have, and their atomic weight, which is equal to total number of their neutrons and protons. In most lighter atoms, the number of neutrons and protons is equal, and the element is stable. In heavier atoms, however, there are more neutrons than protons, and the element is unstable, eventually losing neutrons through radioactive decay until a neutral state is reached

The word "stable" in bold in paragraph 2 is closest in meaning to _____. 

A. neutral 

B. unchanging 

C. equal 

D. heavy 

1
12 tháng 1 2017

Chọn B

Kiến thức: Đọc hiểu

Giải thích:

Từ "stable" được in đậm trong đoạn 2 có nghĩa gần nhất với _____.

  A. trung tính            

  B. không thay đổi    

C. bằng                      

D. nặng

Thông tin: In most lighter atoms, the number of neutrons and protons is equal, and the element is stable.

Tạm dịch: Trong hầu hết các nguyên tử nhẹ hơn, số lượng nơtron và proton bằng nhau và nguyên tố này bền vững

I.       Read the following passage and choose the item (a, b, c, or d) that best answers each of the questions about it.Every nation and every country has its own customs and traditions. In Britain traditions play a more important part in the life of the people than in other countries. Englishmen are proud of their traditions and carefully keep them up.It has been the law for about 300 years that all theaters are closed on Sundays. No letters are delivered; only a few Sunday papers are...
Đọc tiếp

I.       Read the following passage and choose the item (a, b, c, or d) that best answers each of the questions about it.

Every nation and every country has its own customs and traditions. In Britain traditions play a more important part in the life of the people than in other countries. Englishmen are proud of their traditions and carefully keep them up.

It has been the law for about 300 years that all theaters are closed on Sundays. No letters are delivered; only a few Sunday papers are published.

To this day an English family prefers a house with a garden to a flat in a modern house with central heating. English people like gardens. Sometimes the garden in front of the house is a little square covered with cement painted green in imitation of grass and a box of flowers.

Holidays are especially rich in old traditions and are different in Scotland, Ireland, Wales and England. Christmas is a great English national holiday, and in Scotland it is not kept, except by clerks in banks, all shops and factories are working.

26. What is the best title for the passage?

      a. Traditions and Customs in Great Britain          b. The Importance of Traditions and Customs

      c. Traditional Life vs. Modern Life                      d. Englishmen’s Hobbies

27. How important are traditions in Britain?

      a. It is slightly important.                                      b. It is more important than in other countries.

      c. It is rather important.                                        d. It is somewhat important.

28. In Great Britain, _____.

a.    only a few papers are published                      

b.   a garden in front of the house is a little square covered with cement painted garden in imitation of grass and a box of flowers

c.    all shops and factories are working at Christmas

d.   traditions are preserved

29. The word it in the last paragraph refers to _____.

      a. Christmas                  b. a national holiday        c. old traditions               d. England

30. Which of the following is not true?

      a. In Great Britain all theatres are closed on Sundays.

      b. In Great Britain a postman doesn’t work on Sundays.

      c. English families like a house with garden better than a modern flat.

      d. In Scotland Christmas is a great national holiday.

1
21 tháng 7 2021

26. What is the best title for the passage?

      a. Traditions and Customs in Great Britain          b. The Importance of Traditions and Customs

      c. Traditional Life vs. Modern Life                      d. Englishmen’s Hobbies

27. How important are traditions in Britain?

      a. It is slightly important.                                      b. It is more important than in other countries.

      c. It is rather important.                                        d. It is somewhat important.

28. In Great Britain, _____.

a.    only a few papers are published                      

b.   a garden in front of the house is a little square covered with cement painted garden in imitation of grass and a box of flowers

c.    all shops and factories are working at Christmas

d.   traditions are preserved

29. The word it in the last paragraph refers to _____.

      a. Christmas                  b. a national holiday        c. old traditions               d. England

30. Which of the following is not true?

      a. In Great Britain all theatres are closed on Sundays.

      b. In Great Britain a postman doesn’t work on Sundays.

      c. English families like a house with garden better than a modern flat.

      d. In Scotland Christmas is a great national holiday.

21 tháng 7 2021

Câu 28 là gì vậy?

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 following questions. Atomic were once thought to be fundamental pieces of matter, but they are in turn made of smaller subatomic particles There are three major subatomic particles neutrons, protons, and electronic. Protons and neutrons can be broken into even smaller units, but these smaller units not occur naturally in nature and are thought to only be produced in...
Đọc tiếp

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 following questions.

Atomic were once thought to be fundamental pieces of matter, but they are in turn made of smaller subatomic particles There are three major subatomic particles neutrons, protons, and electronic. Protons and neutrons can be broken into even smaller units, but these smaller units not occur naturally in nature and are thought to only be produced in manmade particle accelerators and perhaps in extreme stellar events like supernovas. The structure of an atom can best be described as a small solar system, with the neutrons at the center and the electrons circling them in various orbits, just as the planets circle the sun. In reality, the structure of an atom is far more complex, because the laws of physics are fundamentally different at the atomic level than at the level of the observable word. The true nature of atomic structure can only be expressed accurately through complex mathematical formulas. This explanation, however, is of little use to most average people.

Protons and neutrons have nearly equal mass and size, but protons carry a positive electrical charge, while neutrons carry no charge at all. Protons and neutrons are bound together by the strong nuclear force, one of the four basic forces in the universe. Protons and neutrons give atoms some of their most basic properties. Elements are defined by two numbers: their atomic number, which is equal to the number of protons they have, and their atomic weight, which is equal to total number of their neutrons and protons. In most lighter atoms, the number of neutrons and protons is equal, and the element is stable. In heavier atoms, however, there are more neutrons than protons, and the element is unstable, eventually losing neutrons through radioactive decay until a neutral state is reached.

 

In paragraph 1, why does the author compare the structure of an atom to a solar system?

A. To provide an explanation of atomic structure that will be easily understood

B. To show the influence of atomic structure on the world at the observable level

C. To show that the complex mathematical formulas used to explain atomic structure are inaccurate

D. To contrast the size of atoms with the size of objects at the observable level

1
21 tháng 4 2018

Chọn A

Kiến thức: Đọc hiểu

Giải thích:  

Trong đoạn 1, tại sao tác giả lại so sánh cấu trúc của một nguyên tử với hệ Mặt Trời?

  A. Để đưa ra một lời giải thích về cấu trúc nguyên tử một cách dễ hiểu.

  B. Để chỉ ra ảnh hưởng của cấu trúc nguyên tử đến thế giới ở cấp độ quan sát được.

  C. Để chỉ ra rằng các công thức toán học phức tạp được sử dụng để giải thích cấu trúc nguyên tử là không chính xác.

  D. Để tương phản kích thước của các nguyên tử với kích thước của các vật thể ở mức có thể quan sát được.

Thông tin: The structure of an atom can best be described as a small solar system, with the neutrons at the center and the electrons circling them in various orbits, just as the planets circle the sun.

Tạm dịch: Cấu trúc của một nguyên tử có thể được mô tả chính xác nhất giống như một hệ mặt trời nhỏ, với các nơtron ở trung tâm và các electron quay quanh chúng theo các quỹ đạo khác nhau, giống như các hành tinh quay quanh Mặt Trời

30 tháng 3 2018

D – celibate (không kết hôn) >< married (đã kết hôn).

Part 3: Questions from 46 to 50. (1 points - 0.2/ each)Each of the following sentences has an error. Find the errors and correct them.46. In the end of the story, Cinderella and the prince get married and live happily together.47. Rattan, a close relative of bamboo, is often used to make tables, chairs, and othaaaer furnitures.48. I prefer living in a nuclear family than a joint one.49. There’s no resemble between Gary and Mark, even though they are brothers.50. What I told her a few days ago...
Đọc tiếp

Part 3: Questions from 46 to 50. (1 points - 0.2/ each)

Each of the following sentences has an error. Find the errors and correct them.

46. In the end of the story, Cinderella and the prince get married and live happily together.

47. Rattan, a close relative of bamboo, is often used to make tables, chairs, and othaaaer furnitures.

48. I prefer living in a nuclear family than a joint one.

49. There’s no resemble between Gary and Mark, even though they are brothers.

50. What I told her a few days ago were not the solutions to most of her problems.

Part 4: Questions from 51 to 55. (1 point - 0.2/ each)

Fill in each blank with a suitable preposition.

51. I grew ………..…….. in Binh Dinh province but moved to Ho Chi Minh city for further study.

52. I believe that Diana has recently came ………..…….. a lot of money.

53. The management received a lot of complaints ………..…….. the poor service in their hotel.

54. I cannot be held responsible ………..…….. other people’s mistakes.

55. House prices will continue to go ………..…….. next year because there are many plans for housin

1
29 tháng 8 2021

In - at

othaaaer-other

than-to

were - was