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

1

DH

Dương Hoàn Anh

15 tháng 11 2017

Đáp án D

Giải thích: A: sự phát triển trong ngành truyền thông

B: sự phát minh ra cáp quang

C: công nghệ phẫu thuật mới

D: vai trò của cáp quang trong y học
Thông tin ở câu đầu đoạn: “Just as optical fibers have transformed communication, they are also revolutionizing medicine.”

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 38 to 42. Our eyes and ears might be called transformers because they send the light and sound around us and turn them into electrical impulses that the brain can interpret. These electrical impulses that have been transformed by the eyes and ears reach the brain and are turned into massages that we can interpret. For the eye, the process begins as the...

LQ

Lê Quỳnh Anh

16 tháng 5 2018

1

DH

Dương Hoàn Anh

16 tháng 5 2018

Đáp án C
Thông tin đoạn 2: “During the last five years, improved methods of fabricating optical fibers have led to a reduction in fiberscope diameter and an increase in the number of fibers, which in turn has increased resolution.” - (Trong vòng 5 năm qua công nghệ được cải tiến dẫn đến việc giảm kích thước và tăng số lượng của các ống dây)

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 38 to 42. Our eyes and ears might be called transformers because they send the light and sound around us and turn them into electrical impulses that the brain can interpret. These electrical impulses that have been transformed by the eyes and ears reach the brain and are turned into massages that we can interpret. For the eye, the process begins as the...

LQ

Lê Quỳnh Anh

8 tháng 3 2019

1

DH

Dương Hoàn Anh

8 tháng 3 2019

Đáp án A

“formerly”: (adv) = previously: (adv) trước đây, thủa xưa, ngày trước

B. Completely (adv): hoàn toàn

C: Usually (adverb of frequency): thường thường, thông thường
D: Theoretically (adv): về mặt lý thuyết, theo lý thuyết

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 38 to 42. Our eyes and ears might be called transformers because they send the light and sound around us and turn them into electrical impulses that the brain can interpret. These electrical impulses that have been transformed by the eyes and ears reach the brain and are turned into massages that we can interpret. For the eye, the process begins as the...

LQ

Lê Quỳnh Anh

13 tháng 8 2019

1

DH

Dương Hoàn Anh

13 tháng 8 2019

Đáp án A

“formerly”: (adv) = previously: (adv) trước đây, thủa xưa, ngày trước

B. Completely (adv): hoàn toàn

C: Usually (adverb of frequency): thường thường, thông thường
D: Theoretically (adv): về mặt lý thuyết, theo lý thuyết

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 38 to 42. (1) Just as optical fibers have transformed communication, they are also revolutionizing medicine. These ultra- thin, flexible fibers have opened a window into the living tissues of the body. By inserting optical fibers through natural openings or small incisions and threading them along the body's established pathways, physicians can look into...

LQ

Lê Quỳnh Anh

21 tháng 11 2018

1

DH

Dương Hoàn Anh

21 tháng 11 2018

Đáp án D

A. Sự phát triển trong ngành truyền thông

B. Sự phát minh ra cáp quang

C. Công nghệ phẫu thuật mới

D. Vai trò của sợi quang trong y học
Câu đầu tiên đã nói lên chủ đề của toàn bài: “Just as optical fibers have transformed communication, they are also revolutionizing medicine.” (Chúng cải tiến y học). Những câu tiếp theo giải thích rõ vai trò của chúng: “…have open a window into the living tissiues of the body”, “By inserting optical fibers…, physicians can look into the lungs, intestines, heart and other areas”, “used to deliver laser light”, “These techniques have reduced the risk and the cost of medical care.” …=> Đáp án 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 38 to 42. (1) Just as optical fibers have transformed communication, they are also revolutionizing medicine. These ultra- thin, flexible fibers have opened a window into the living tissues of the body. By inserting optical fibers through natural openings or small incisions and threading them along the body's established pathways, physicians can look into...

LQ

Lê Quỳnh Anh

28 tháng 12 2018

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 38 to 42.

(1) Just as optical fibers have transformed communication, they are also revolutionizing medicine. These ultra- thin, flexible fibers have opened a window into the living tissues of the body. By inserting optical fibers through natural openings or small incisions and threading them along the body's established pathways, physicians can look into the lungs, intestines, heart and other areas that were formerly inaccessible to them.

(2) The basic fiber-optics system is called fiberscope, which consists of two bundles of fibers. One, the illuminating bundle, carries light to the tissues. Is is coupled to a high-intensity light source. Light enters the cores of the high-purity silicon glass and travels along the fibers. A lens at the end of the bundle collects the light and focuses it into the other bundle, the imaging bundle. Each fiber in the bundle transmits only a tiny fraction of the total image. The reconstructed image can be viewed through an eyepiece or displayed on a television screen. During the last five years, improved methods of fabricating optical fibers have led to a reduction in fiberscope diameter and an increase in the number of fibers, which in turn has increased resolution.

(3) Optical fibers can also be used to deliver laser light. By use of laser beams, physicians can perform surgery inside the body, sometimes eliminating the need for invasive procedures in which healthy tissue must be cut through to reach the site of disease. Many of these procedures do not require anesthesia and can be performed in a physician's office. These techniques have reduced the risk and the cost of medical care.

According to the passage, what is the purpose of the illuminating bundle in a fiberscope?

A. To carry light into the body

B. To collect and focus light

C. To reconstruct images

D. To perform surgery inside the body

1

DH

Dương Hoàn Anh

28 tháng 12 2018

Đáp án A

Giải thích: Theo bài văn, chức năng của bó chiếu sáng trong kính quang thể là gì?

A. Mang ánh sáng vào trong cơ thể

B. Tập hợp và tập hội tụ ánh sáng

C. Dựng lại hình ảnh

D. Thực hiện phẫu thuật bên trong cơ thể
Dòng thứ hai, đoạn hai: “One, the illuminating bundle, carries light to the tissues”

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 38 to 42. (1) Just as optical fibers have transformed communication, they are also revolutionizing medicine. These ultra- thin, flexible fibers have opened a window into the living tissues of the body. By inserting optical fibers through natural openings or small incisions and threading them along the body's established pathways, physicians can look into...

LQ

Lê Quỳnh Anh

4 tháng 4 2019

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 38 to 42.

(1) Just as optical fibers have transformed communication, they are also revolutionizing medicine. These ultra- thin, flexible fibers have opened a window into the living tissues of the body. By inserting optical fibers through natural openings or small incisions and threading them along the body's established pathways, physicians can look into the lungs, intestines, heart and other areas that were formerly inaccessible to them.

(2) The basic fiber-optics system is called fiberscope, which consists of two bundles of fibers. One, the illuminating bundle, carries light to the tissues. Is is coupled to a high-intensity light source. Light enters the cores of the high-purity silicon glass and travels along the fibers. A lens at the end of the bundle collects the light and focuses it into the other bundle, the imaging bundle. Each fiber in the bundle transmits only a tiny fraction of the total image. The reconstructed image can be viewed through an eyepiece or displayed on a television screen. During the last five years, improved methods of fabricating optical fibers have led to a reduction in fiberscope diameter and an increase in the number of fibers, which in turn has increased resolution.

(3) Optical fibers can also be used to deliver laser light. By use of laser beams, physicians can perform surgery inside the body, sometimes eliminating the need for invasive procedures in which healthy tissue must be cut through to reach the site of disease. Many of these procedures do not require anesthesia and can be performed in a physician's office. These techniques have reduced the risk and the cost of medical care.

According to the passage, how do the fiberscopes used today differ from those used in five years ago?

A. They use brighter light.

B. They are longer.

C. They contain more fibers.

D. They are larger in diameter.

1

DH

Dương Hoàn Anh

4 tháng 4 2019

Đáp án C

Giải thích: Theo bài văn, làm thế nào sợi quang ngày nay khác với 5 năm trước như thế nào?

A. Chúng sử dụng ánh sáng mạnh hơn

B. Chúng dài hơn

C. Chúng chứa nhiều sợi hơn

D. Chúng có đường kính to hơn

Khổ thứ hai, câu cuối: “During the last five years, improved methods of fabricating optical fibers have led to a reduction in fiberscope diameter and an increase in the number of fibers” (Trong vòng 5 năm qua công nghệ được cải tiến dẫn đến việc giảm kích thước đường kính và tăng số lượng của các ống dây)

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 38 to 42. (1) Just as optical fibers have transformed communication, they are also revolutionizing medicine. These ultra- thin, flexible fibers have opened a window into the living tissues of the body. By inserting optical fibers through natural openings or small incisions and threading them along the body's established pathways, physicians can look into...

LQ

Lê Quỳnh Anh

9 tháng 6 2018