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29 tháng 7 2017

Đáp án C
Trong câu nói về Penicilin- drug (thuốc) là danh từ số ít đếm được nên ta loại B và D. Hơn nữa, ở đây sử
dụ
ng hiện tại hoàn thành nói về việc vẫn còn tiếp tục diễn ra, chưa kết thúc:
Penicilin có lẽ là loại thuốc cứu được nhiều mạng sống hơn cả trong lịch sử các loại thuốc (và việc này sẽ
còn tiếp diễn, chưa dừng lại)

23 tháng 11 2017

Đáp án là B.

“which” -> “whose”
“whose” là mệnh đề quan hệ mang tính sở hữu, ở đây “whose progress” = The science of medicine’s progress 

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 food we eat seems to have profound effects on our health. Although science has made enormous steps in making food more fit to eat, it has, at the same time, made many foods unfit to eat. Some research has shown that perhaps eighty percent of all human illnesses are related to diet and forty percent of cancer is related to the diet as well, especially...
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 questions.

The food we eat seems to have profound effects on our health. Although science has made enormous steps in making food more fit to eat, it has, at the same time, made many foods unfit to eat. Some research has shown that perhaps eighty percent of all human illnesses are related to diet and forty percent of cancer is related to the diet as well, especially cancer of the colon. People of different cultures are more prone to contact certain illnesses because of the characteristic foods they consume.

That food is related to illness is not a new discovery. In 1945, government researchers realized that nitrates nitrites (commonly used to preserve color in meat) as well as other food additives caused cancer. Yet, these carcinogenic additives remain in our food, and it becomes more difficult all the time to know which ingredients on the packaging label of processed food are helpful or harmful.

The additives that we eat are not all so direct. Farmers often give penicillin to cattle and poultry, and because of this, penicillin has been found in the milk of treated cows.

Sometimes similar drugs are administered to animals not for medical purposes, but for financial reasons. The farmers are simply trying to fatten the animals in order to obtain a higher price on the market. Although the Food and Drug Administration (FDA) has tried repeatedly to control these procedures, the practices continue.

A healthy diet is directly related to good health. Often we are unaware of detrimental substances we ingest. Sometimes well-meaning farmers or others who do not realize the consequences add these substances to food without our knowledge.

The word "prone" is nearest meaning to ________ . 

A. supine 

B. unlikely 

C. healthy 

D. predisposed 

1
19 tháng 2 2018

Kiến thức: Đọc hiểu

Giải thích:

Từ “prone” (nghiêng, thiên về) có nghĩa gần nhất với ______ .

A. supine (adj): nằm ngửa                                                                   B. unlikely (adj): không chắc

C. healthy (adj): khỏe mạnh                             D. predisposed (adj): thiên về

=> prone = predisposed

Chọn D

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 food we eat seems to have profound effects on our health. Although science has made enormous steps in making food more fit to eat, it has, at the same time, made many foods unfit to eat. Some research has shown that perhaps eighty percent of all human illnesses are related to diet and forty percent of cancer is related to the diet as well, especially...
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 questions.

The food we eat seems to have profound effects on our health. Although science has made enormous steps in making food more fit to eat, it has, at the same time, made many foods unfit to eat. Some research has shown that perhaps eighty percent of all human illnesses are related to diet and forty percent of cancer is related to the diet as well, especially cancer of the colon. People of different cultures are more prone to contact certain illnesses because of the characteristic foods they consume.

That food is related to illness is not a new discovery. In 1945, government researchers realized that nitrates nitrites (commonly used to preserve color in meat) as well as other food additives caused cancer. Yet, these carcinogenic additives remain in our food, and it becomes more difficult all the time to know which ingredients on the packaging label of processed food are helpful or harmful.

The additives that we eat are not all so direct. Farmers often give penicillin to cattle and poultry, and because of this, penicillin has been found in the milk of treated cows.

Sometimes similar drugs are administered to animals not for medical purposes, but for financial reasons. The farmers are simply trying to fatten the animals in order to obtain a higher price on the market. Although the Food and Drug Administration (FDA) has tried repeatedly to control these procedures, the practices continue.

A healthy diet is directly related to good health. Often we are unaware of detrimental substances we ingest. Sometimes well-meaning farmers or others who do not realize the consequences add these substances to food without our knowledge.

The word "additives" is closest meaning to _______ . 

A. dangerous substance 

B. natural substance 

C. begin substance 

D. added substance 

1
24 tháng 3 2017

Kiến thức: Đọc hiểu

Giải thích:

Từ "phụ gia" có nghĩa gần nhất với _______.

A. chất nguy hiểm         B. chất tự nhiên          C. bắt đầu chất            D. chất thêm vào

=> additives = added substance

Chọn D

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 food we eat seems to have profound effects on our health. Although science has made enormous steps in making food more fit to eat, it has, at the same time, made many foods unfit to eat. Some research has shown that perhaps eighty percent of all human illnesses are related to diet and forty percent of cancer is related to the diet as well, especially...
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 questions.

The food we eat seems to have profound effects on our health. Although science has made enormous steps in making food more fit to eat, it has, at the same time, made many foods unfit to eat. Some research has shown that perhaps eighty percent of all human illnesses are related to diet and forty percent of cancer is related to the diet as well, especially cancer of the colon. People of different cultures are more prone to contact certain illnesses because of the characteristic foods they consume.

That food is related to illness is not a new discovery. In 1945, government researchers realized that nitrates nitrites (commonly used to preserve color in meat) as well as other food additives caused cancer. Yet, these carcinogenic additives remain in our food, and it becomes more difficult all the time to know which ingredients on the packaging label of processed food are helpful or harmful.

The additives that we eat are not all so direct. Farmers often give penicillin to cattle and poultry, and because of this, penicillin has been found in the milk of treated cows.

Sometimes similar drugs are administered to animals not for medical purposes, but for financial reasons. The farmers are simply trying to fatten the animals in order to obtain a higher price on the market. Although the Food and Drug Administration (FDA) has tried repeatedly to control these procedures, the practices continue.

A healthy diet is directly related to good health. Often we are unaware of detrimental substances we ingest. Sometimes well-meaning farmers or others who do not realize the consequences add these substances to food without our knowledge. 

What is best title for this passage?

A. The food you eat can affect your health 

B. Harmful and Harmless substances in food 

C. Avoiding injurious substances in food 

D. Improving health through a Natural Diet 

1
14 tháng 1 2019

Kiến thức: Đọc hiểu

Giải thích:

Tiêu đề hay nhất cho đoạn văn này là gì?

A. Thực phẩm bạn ăn có thể ảnh hưởng đến sức khỏe của bạn

B. Các chất có hại và vô hại trong thực phẩm

C. Tránh các chất gây hại trong thực phẩm

D. Cải thiện sức khỏe thông qua chế độ ăn uống tự nhiên

Chọn A

Dịch bài đọc:

Thực phẩm chúng ta ăn dường như có ảnh hưởng sâu sắc đến sức khỏe của chúng ta. Mặc dù khoa học đã có những bước tiến lớn trong việc làm cho thực phẩm phù hợp hơn để ăn, nhưng đồng thời, nó đã làm cho nhiều loại thực phẩm không thể ăn được. Một số nghiên cứu đã chỉ ra rằng có lẽ tám mươi phần trăm tất cả các bệnh của con người có liên quan đến chế độ ăn uống và bốn mươi phần trăm ung thư cũng liên quan đến chế độ ăn uống, đặc biệt là ung thư ruột kết. Những người thuộc các nền văn hóa khác nhau dễ tiếp xúc với một số bệnh nhất định vì các loại thực phẩm đặc trưng mà họ tiêu thụ.

Thực phẩm đó có liên quan đến bệnh tật không phải là một khám phá mới. Năm 1945, các nhà nghiên cứu của chính phủ nhận ra rằng nitrat nitrit (thường được sử dụng để bảo quản màu trong thịt) cũng như các chất phụ gia thực phẩm khác gây ung thư. Tuy nhiên, các chất phụ gia gây ung thư này vẫn còn trong thực phẩm của chúng ta và việc trở nên khó khăn hơn trong việc biết thành phần nào trên nhãn bao bì của thực phẩm chế biến là hữu ích hay có hại.

Các chất phụ gia mà chúng ta ăn không phải là tất cả trực tiếp. Nông dân thường cung cấp penicillin cho gia súc và gia cầm và vì điều này, penicillin đã được tìm thấy trong sữa của những con bò được điều trị.

Đôi khi các loại thuốc tương tự được dùng cho động vật không phải vì mục đích y tế, mà vì lý do tài chính. Nông dân chỉ đơn giản là cố gắng vỗ béo các con vật để có được giá cao hơn trên thị trường. Mặc dù Cục Quản lý Thực phẩm và Dược phẩm Hoa Kỳ (FDA) đã cố gắng nhiều lần để kiểm soát các quy trình này, các thực hành vẫn tiếp tục.

Một chế độ ăn uống lành mạnh có liên quan trực tiếp đến sức khỏe tốt. Thông thường chúng ta không nhận thức được các chất bất lợi mà chúng ta ăn vào. Đôi khi nông dân có ý nghĩa tốt hoặc những người khác không nhận ra hậu quả sẽ thêm các chất này vào thực phẩm mà chúng ta không biết.

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.Biological diversity has become widely recognized as a critical conservation issue only in the past two decades. The rapid destruction of the tropical rain forests, which are the ecosystems with the highest known species diversity on Earth, has awakened people to the importance and fragility of biological diversity. The high rate of species extinctions 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 questions.

Biological diversity has become widely recognized as a critical conservation issue only in the past two decades. The rapid destruction of the tropical rain forests, which are the ecosystems with the highest known species diversity on Earth, has awakened people to the importance and fragility of biological diversity. The high rate of species extinctions in these environments is jolting, but it is important to recognize the significance of biological diversity in all ecosystems. As the human population continues to expand, it will negatively affect one after another of Earth’s ecosystems. In terrestrial ecosystems and in fringe marine ecosystems (such as wetlands), the most common problem is habitat destruction. In most situations, the result is irreversible. Now humans are beginning to destroy marine ecosystems through other types of activities, such as disposal and runoff of poisonous waste; in less than two centuries, by significantly reducing the variety of species on Earth, they have irrevocably redirected the course of evolution.

Certainly, there have been periods in Earth’s history when mass extinctions have occurred. The extinction of the dinosaurs was caused by some physical event, either climatic or cosmic. There have also been less dramatic extinctions, as when natural competition between species reached an extreme conclusion. Only 0.01 percent of the species that have lived on Earth have survived to the present, and it was largely chance that determined which species survived and which died out.

However, nothing has ever equaled the magnitude and speed with which the human species is altering the physical and chemical world and demolishing the environment. In fact, there is wide agreement that it is the rate of change humans are inflicting, even more than the changes themselves, that will lead to biological devastation. Life on Earth has continually been in flux as slow physical and chemical changes have occurred on Earth, but life needs time to adapt-time for migration and genetic adaptation within existing species and time for the proliferation of new genetic material and new species that may be able to survive in new environments.
Question:
The word “critical” is closest in meaning to

A. complicated

B. interesting

C. negative

D. essential

1
29 tháng 1 2017

Đáp án D

Kiến thức: Đọc hiểu

Giải thích:

Từ “critical” gần nhất có nghĩa là

A. phức tạp                      B. thú vị

C. tiêu cực                       D. cần thiết

“critical” = essential: quan trọng, cần thiết

Biological diversity has become widely recognized as a critical conservation issue only in the past two decades. Sự đa dạng sinh học đã trở thành một vấn đề bảo tồn quan trọng chỉ trong hai thập kỷ qua.

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.Biological diversity has become widely recognized as a critical conservation issue only in the past two decades. The rapid destruction of the tropical rain forests, which are the ecosystems with the highest known species diversity on Earth, has awakened people to the importance and fragility of biological diversity. The high rate of species extinctions 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 questions.

Biological diversity has become widely recognized as a critical conservation issue only in the past two decades. The rapid destruction of the tropical rain forests, which are the ecosystems with the highest known species diversity on Earth, has awakened people to the importance and fragility of biological diversity. The high rate of species extinctions in these environments is jolting, but it is important to recognize the significance of biological diversity in all ecosystems. As the human population continues to expand, it will negatively affect one after another of Earth’s ecosystems. In terrestrial ecosystems and in fringe marine ecosystems (such as wetlands), the most common problem is habitat destruction. In most situations, the result is irreversible. Now humans are beginning to destroy marine ecosystems through other types of activities, such as disposal and runoff of poisonous waste; in less than two centuries, by significantly reducing the variety of species on Earth, they have irrevocably redirected the course of evolution.

Certainly, there have been periods in Earth’s history when mass extinctions have occurred. The extinction of the dinosaurs was caused by some physical event, either climatic or cosmic. There have also been less dramatic extinctions, as when natural competition between species reached an extreme conclusion. Only 0.01 percent of the species that have lived on Earth have survived to the present, and it was largely chance that determined which species survived and which died out.

However, nothing has ever equaled the magnitude and speed with which the human species is altering the physical and chemical world and demolishing the environment. In fact, there is wide agreement that it is the rate of change humans are inflicting, even more than the changes themselves, that will lead to biological devastation. Life on Earth has continually been in flux as slow physical and chemical changes have occurred on Earth, but life needs time to adapt-time for migration and genetic adaptation within existing species and time for the proliferation of new genetic material and new species that may be able to survive in new environments.
Question:
The word “jolting” is closest in meaning to

A. shocking

B. unknown

C. illuminating

D. predicted

1
13 tháng 5 2018

Đáp án A

Kiến thức: Đọc hiểu

Giải thích:

Từ "jolting" gần nghĩa nhất với

A. gây sốc                        B. không biết

C. chiếu sáng                             D. dự đoán

"jolting" = shocking: gây sốc, chao đảo

The high rate of species extinctions in these environments is jolting, but it is important to recognize the significance of biological diversity in all ecosystems.

Tỷ lệ tuyệt chủng của các loài trong những môi trường này đang chao đảo, nhưng điều quan trọng là nhận ra tầm quan trọng của đa dạng sinh học trong tất cả các hệ sinh thái.

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 food we eat seems to have profound effects on our health. Although science has made enormous steps in making food more fit to eat, it has, at the same time, made many foods unfit to eat. Some research has shown that perhaps eighty percent of all human illnesses are related to diet and forty percent of cancer is related to the diet as well, especially...
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 questions.

The food we eat seems to have profound effects on our health. Although science has made enormous steps in making food more fit to eat, it has, at the same time, made many foods unfit to eat. Some research has shown that perhaps eighty percent of all human illnesses are related to diet and forty percent of cancer is related to the diet as well, especially cancer of the colon. People of different cultures are more prone to contact certain illnesses because of the characteristic foods they consume.

That food is related to illness is not a new discovery. In 1945, government researchers realized that nitrates nitrites (commonly used to preserve color in meat) as well as other food additives caused cancer. Yet, these carcinogenic additives remain in our food, and it becomes more difficult all the time to know which ingredients on the packaging label of processed food are helpful or harmful.

The additives that we eat are not all so direct. Farmers often give penicillin to cattle and poultry, and because of this, penicillin has been found in the milk of treated cows.

Sometimes similar drugs are administered to animals not for medical purposes, but for financial reasons. The farmers are simply trying to fatten the animals in order to obtain a higher price on the market. Although the Food and Drug Administration (FDA) has tried repeatedly to control these procedures, the practices continue.

A healthy diet is directly related to good health. Often we are unaware of detrimental substances we ingest. Sometimes well-meaning farmers or others who do not realize the consequences add these substances to food without our knowledge. 

How has science done to disservice to people? 

A. Because of science, disease caused by contaminated food has been virtually eradicated

B. The scientists have preserved the color of meats, but not of vegetables 

C. It caused a lack of information concerning the value of food

D. As a result of scientific intervention, some potentially harmful substances have been added to our food.

1
24 tháng 2 2018

Kiến thức: Đọc hiểu

Giải thích:

Khoa học đã làm gì để gây bất lợi cho con người?

A. Vì khoa học, bệnh gây ra bởi thực phẩm bị ô nhiễm đã hầu như bị loại bỏ.

B. Các nhà khoa học đã bảo quản màu sắc của thịt, nhưng không phải là rau.

C. Nó gây ra sự thiếu thông tin liên quan đến giá trị của thực phẩm.

D. Do sự can thiệp của khoa học, một số chất có khả năng gây hại đã được thêm vào thực phẩm của chúng ta

Thông tin: Although science has made enormous steps in making food more fit to eat, it has, at the same time, made many foods unfit to eat. Some research has shown that perhaps eighty percent of all human illnesses are related to diet and forty percent of cancer is related to the diet as well, especially cancer of the colon. People of different cultures are more prone to contact certain illnesses because of the characteristic foods they consume.

Tạm dịch: Dù các nhà khoa học đã thực hiện những bước tiến ngoạn ngục trong việc tạo ra thực phẩm có thể ăn được hơn, vẫn còn có, cùng lúc ấy những thực phẩm không ăn được. Một số nghiên cứu đã chỉ ra rằng 80% các bệnh ở người có liên quan đến khẩu phần ăn và 40% các bệnh ung thư có liên quan đến khẩu phần ăn, đặc biệt là ung thư ruột kết. Những người ở các nền văn hóa khác nhau dễ mắc phải các bệnh nhất định vì đặc trưng thực phẩm mà họ tiêu dùng.

Chọn D

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 43 to 50.          Carbon dating can be used to estimate the age of any organic natural material; it has been used successfully in archeology to determine the age of ancient artifacts or fossils as well as in a variety of other fields. The principle underlying the use of carbon dating is that carbon is a part of all living things on Earth. Since a...
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 questions from 43 to 50.

         Carbon dating can be used to estimate the age of any organic natural material; it has been used successfully in archeology to determine the age of ancient artifacts or fossils as well as in a variety of other fields. The principle underlying the use of carbon dating is that carbon is a part of all living things on Earth. Since a radioactive substance such as carbon-14 has a known half-life, the amount of carbon-14 remaining in an object can be used to date that object.

        Carbon-14 has a half-life of 5,570 years, which means that after that number of years, half of the carbon- 14 atoms have decayed into nitrogen-14. It is the ratio of carbon-14 in that substance that indicates the age of the substance. If, for example, in a particular sample the amount of carbon-14 is roughly equivalent to the amount of nitrogen-14, this indicates that around half of the carbon-14 has decayed into nitrogen-14, and the sample is approximately 5,570 years old.

        Carbon dating cannot be used effectively in dating objects that are older than 80,000 years. When objects are that old, much of the carbon-14 has already decayed into nitrogen-14, and the miniscule amount that is left doesn’t provide a reliable measurement of age. In the case of older objects, other age-dating methods are available, methods which use radioactive atoms with longer half-lives than carbon has.

It can be inferred from the passage that if an item contains more carbon-14 than nitrogen-14, then the item is _______.

A. not as much as 5,570 years old

B. too old to be age-dated with carbon-14

C. too radioactive to be used by archeologists

D. more than 5.570 years old

1
31 tháng 1 2018

Đáp án A.

Có thể suy ra từ đoạn văn rằng nếu một vật có chứa nhiều các-bon 14 hơn ni-tơ 14, thì vật đó_____                     

A. không đến 5.570 năm tuổi

B. quá lâu đời đ có thế xác định được niên đại với carbon-14

C. chứa quá nhiều phóng xạ để được sử dụng bởi các nhà khảo cổ.

D. trên 5.570 năm tui.

Dựa vào đoạn 2: “Carbon-14 has a half-life of 5,570 years, which means that after that number of years, half of the carbon- 14 atoms have decayed into nitrogen-14. It is the ratio of carbon-14 in that substance that indicates the age of the substance. If, for example, in a particular sample the amount of carbon-14 is roughly equivalent to the amount of nitrogen-lá, this indicates that around half of the carbon- 14 has decayed into nitrogen-14, and the sample is approximately 5.570 years old”: Carbon-14 có thời gian bán hủy 5,570 năm, nghĩa là sau từng ấy năm, một nửa các nguyên tử carbon-14 đã bị phân hủy thành nitơ-14. Chính tỷ lệ carbon-14 có trong chất đó cho thấy độ tuổi của nó. Thí dụ như, nếu trong một mẫu vật cụ thể lượng cacbon-14 tương đương với lượng nitơ- 14, điều đó chỉ ra rằng khoảng một nửa lượng carbon- 14 đã phân hủy thành nitơ-14, và mẫu vật đó có niên đại khoảng 5,570 tui.

Nếu một vật có chứa nhiều các-bon 14 hơn ni-tơ 14, thì chứng tỏ nó chưa hoàn tất chu kì bán hủy của mình kéo dài trong 5.570 năm nên vật đó chưa tới 5.570 tuổi.

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 food we eat seems to have profound effects on our health. Although science has made enormous steps in making food more fit to eat, it has, at the same time, made many foods unfit to eat. Some research has shown that perhaps eighty percent of all human illnesses are related to diet and forty percent of cancer is related to the diet as well, especially...
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 questions.

The food we eat seems to have profound effects on our health. Although science has made enormous steps in making food more fit to eat, it has, at the same time, made many foods unfit to eat. Some research has shown that perhaps eighty percent of all human illnesses are related to diet and forty percent of cancer is related to the diet as well, especially cancer of the colon. People of different cultures are more prone to contact certain illnesses because of the characteristic foods they consume.

That food is related to illness is not a new discovery. In 1945, government researchers realized that nitrates nitrites (commonly used to preserve color in meat) as well as other food additives caused cancer. Yet, these carcinogenic additives remain in our food, and it becomes more difficult all the time to know which ingredients on the packaging label of processed food are helpful or harmful.

The additives that we eat are not all so direct. Farmers often give penicillin to cattle and poultry, and because of this, penicillin has been found in the milk of treated cows.

Sometimes similar drugs are administered to animals not for medical purposes, but for financial reasons. The farmers are simply trying to fatten the animals in order to obtain a higher price on the market. Although the Food and Drug Administration (FDA) has tried repeatedly to control these procedures, the practices continue.

A healthy diet is directly related to good health. Often we are unaware of detrimental substances we ingest. Sometimes well-meaning farmers or others who do not realize the consequences add these substances to food without our knowledge. 

All of the following statements are TRUE except _______ . 

A. Food may cause forty percent of the cancer in the world 

B. Drug are always given to animals for medical reasons 

C. Researchers have known about the potential hazard of food additives for more than 45 years 

D. Some of the additives in our food are added to the food itself and some are given to the living animal

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24 tháng 11 2018

Kiến thức: Đọc hiểu

Giải thích:

Tất cả các tuyên bố sau là đúng ngoại trừ _______.

A. Thực phẩm có thể gây ra bốn mươi phần trăm bệnh ung thư trên thế giới

B. Thuốc luôn được dùng cho động vật vì lý do y tế

C. Các nhà nghiên cứu đã biết về mối nguy tiềm ẩn của phụ gia thực phẩm trong hơn 45 năm

D. Một số chất phụ gia trong thực phẩm của chúng ta được thêm vào thực phẩm và một số được cung cấp cho động vật sống

Thông tin: Sometimes similar drugs are administered to animals not for medical purposes, but for financial reasons.

Tạm dịch: Đôi khi các loại thuốc tương tự được dùng cho động vật không phải vì mục đích y tế, mà vì lý do tài chính.

Chọn B