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Mua vip
LQ
Lê Quỳnh Anh
24 tháng 9 2019

To protect ________ hackers, security experts advise longer passwords_______ combinations of upper and lowercase letters, as well as numbers. 

A. from/to 

B. on/between 

C. against/in 

D. against/with
#Mẫu giáo
1
DH
Dương Hoàn Anh
24 tháng 9 2019

Kiến thức: Cụm từ

Giải thích:

protect (sb/sth) from: bảo vệ ai khỏi cái gì

in combination of: với sự kết hợp của

Tạm dịch: Để bảo vệ khỏi tin tặc, các chuyên gia bảo mật khuyên mật khẩu dài hơn trong việc kết hợp chữ hoa và chữ thường, cũng như số

Chọn C 

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LQ
Lê Quỳnh Anh
16 tháng 7 2018
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questionsTo protect ____________ hackers, security experts advise longer passwords ____________ combinations of upper and lowercase, as well as numbers A. on – between  B. against – with  C. from – to   D. about – inside...
Đọc tiếp

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions

To protect ____________ hackers, security experts advise longer passwords ____________ combinations of upper and lowercase, as well as numbers

A. on – between 

B. against – with 

C. from – to  

D. about – inside  
#Mẫu giáo
1
DH
Dương Hoàn Anh
16 tháng 7 2018

Đáp án B

Cụm động từ: protect sb from/ against [ bảo vệ ai tránh khỏi cái gì ]

With combination of: có sự kết hợp của

Câu này dịch như sau: Để bảo vệ chống lại kẻ hackers, các chuyên gia an ninh khuyên các mật khẩu dài hơn có sự kết hợp giữa chữ in hoa, chữ thường và con số.

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LQ
Lê Quỳnh Anh
17 tháng 5 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 43 to 50.According to airline industry statistics, almost 90 percent of airline accidents are survivable or partially survivable. But passengers can increase their chances of survival by learning and following certain tips. Experts say that you should read and listen to safety instructions before take-off and ask questions if you have uncertainties. You...
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.

According to airline industry statistics, almost 90 percent of airline accidents are survivable or partially survivable. But passengers can increase their chances of survival by learning and following certain tips. Experts say that you should read and listen to safety instructions before take-off and ask questions if you have uncertainties. You should fasten your seat belt low on your hips and as tightly as possible. Of course, you should also know how ­to release mechanism of your belt operates. During take-offs and landings, you are advised to keep your feet flat on the floor. Before take-off you should locate the nearest exit and an alternative exit and count the rows of seats between you and the exits to so that you can find them in the dark if necessary.

 In the event that you are forewarned of a possible accident, you should put your hands on your ankles and keep your head down until the plane comes to a complete stop. If smoke is present in the cabin, you should keep your head low and cover your face with napkins, towels, or clothing. If possible, wet these for added protection against smoke inhalation. To evacuate as quickly as possible, follow crew commands and do not take personal belongings with you. Do not jump on escape slides before they are inflated, and when you jump, do so with your arms and legs extended in front of you. When you get to the ground, you should move away from them as quickly as possible, and never smoke near the wreckage.

Travelers are urged by experts to read and listen to safety instructions

A. if smoke is in the cabin

B. before take off

C. in an emergency

D. before locating the exits
#Mẫu giáo
1
DH
Dương Hoàn Anh
17 tháng 5 2018

Đáp án B

Giải thích: Experts say that you should read and listen to safety instructions before take-off and ask questions if you have uncertainties.

Dịch nghĩa: Các chuyên gia nói rằng bạn nên đọc và nghe hướng dẫn an toàn trước khi cất cánh và đặt câu hỏi nếu bạn còn chưa chắc chắn.

Phương án B. before take off = trước khi cất cánh; là phương án chính xác nhất.

          A. if smoke is in the cabin = nếu có khói ở trong khoang

          C. in an emergency = trong trường hợp khẩn cấp

          D. before locating the exits = trước khi định vị được của ra

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LQ
Lê Quỳnh Anh
21 tháng 9 2018
Read the following passage and mark the letter A, B, C, or D to indicate the answer to each of the question. As computer use becomes more common, the need for security is more important than ever. One of the greatest security threats in the online world is computer hacking. Computer hacking is the unauthorized access to a computer or network of computers. Hackers are people who illegally enter systems. They may alter or delete information, steal private information, or spread viruses that can...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D to indicate the answer to each of the question.

As computer use becomes more common, the need for security is more important than ever. One of the greatest security threats in the online world is computer hacking. Computer hacking is the unauthorized access to a computer or network of computers. Hackers are people who illegally enter systems. They may alter or delete information, steal private information, or spread viruses that can damage or destroy files. But how exactly can a hacker get into a system to do these things?

Most hackers use information called protocols that are built into computer software. These protocols allow computers to interact with one another. Protocols are sort of like computer police officers. When a computer connects to another system, the protocols check to see if the access is valid. The protocols can also determine how much information can be shared between the two systems. Hackers can manipulate the protocols to get unlimited access to a computer system.

In fact, just the act of entering a computer network is considered hacking. This is commonly called passive hacking. Passive hackers get a rush from just being able to access a challenging system like a bank or military network. Another kind of hacker tries to do damage to a system. After hacking into systems, these hackers release viruses or alter, delete, or take information. Known as active hackers, they are, by far, the more dangerous of the two.

        The easiest way to protect a system is with a good password, Long and unusual passwords are harder for hackers to guess. For even greater security, some online services now use “password-plus” systems. In this case, users first put in a password and then put in a second code that changes after the user accesses the site. Users either have special cards or devices that show them the new code to use the next time. Even if a hacker steals the password, they won't have the code. Or if the hacker somehow gets the code, they still don't know the password.

As suggested in the last paragraph, what is the best way for computer users to prevent hackers?

A. They should use a long and customary password so that hackers cannot guess.

B. They should use different passwords for different accounts to access the sites.

C. They should have an additional secret code to confirm for their access after putting a password.

D. They should not use any code on online services to make sure that hackers have no chance to get your password.
#Mẫu giáo
1
DH
Dương Hoàn Anh
21 tháng 9 2018

Đáp án C

Như đã được gợi ý trong đoạn văn cuối, cách tốt nhất để người dùng máy tính ngăn chặn tin tặc là gì?

A. Họi nên sử dụng một mật khẩu dài và thông dụng để tin tặc không thể đoán.

B. Họ nên sử dụng các mật khẩu khác nhau cho các tài khoản khác nhau khi đăng nhập vào các trang mạng.

C. Họ nên có thêm một mã xác nhận bí mật để xác nhận cho quyền truy cập của họ sau khi đã nhập mật khẩu.

D. Họ không nên sử dụng bất kì một mã nào trên các dịch vụ trực tuyến để đảm bảo rằng tin tặc không có cơ hội đánh cắp mật khẩu.

Từ khóa: best way/ prevent hackers

Căn cứ vào thông tin đoạn văn cuối:

“The easiest way to protect a system is with a good password. Long and unusual passwords are harder for hackers to guess. For even greater security, some online services now use “password-plus” systems. In this case, users first put in a password and then put in a second code that changes after the user accesses the site. Users either have speciaal cards or devices that show them the new code to use the next time. Even ifo hacker steals the password, they won’t have the code. Or if the hacker somehow gets the code, they still don’t know the password.”

(Cách đơn giản nhất để bảo vệ hệ thống là sử dụng 1 mật khẩu tốt. Mật khẩu đài và khác thường sẽ khiến tin tặc khó đoán được. Để bảo mật hơn nữa, một số địch vụ trực tuyến hiện nay đã sử dụng hệ thống “mật khẩu cộng mật khẩu”. Trong trường hợp này, trước hết người dùng nhập mật khẩu, sau đó nhập tiếp một mã thứ hai mà luôn thay đổi sau khi người dùng truy cập vào trang mạng. Người dùng sẽ có các dịch vụ hoặc thẻ đặc biệt cho họ biết mã truy cập mới cho lần đăng nhập tiếp theo. Ngay cả khi tin tặc lấy cắp được mật khẩu, họ cũng sẽ không có mã đăng nhập. Hoặc bằng cách nào đó tin tặc lấy được mã đăng nhập, họ cũng không thể biết mật khẩu là gì.)

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LQ
Lê Quỳnh Anh
22 tháng 8 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 43 to 50.According to airline industry statistics, almost 90 percent of airline accidents are survivable or partially survivable. But passengers can increase their chances of survival by learning and following certain tips. Experts say that you should read and listen to safety instructions before take-off and ask questions if you have uncertainties. You...
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.

According to airline industry statistics, almost 90 percent of airline accidents are survivable or partially survivable. But passengers can increase their chances of survival by learning and following certain tips. Experts say that you should read and listen to safety instructions before take-off and ask questions if you have uncertainties. You should fasten your seat belt low on your hips and as tightly as possible. Of course, you should also know how ­to release mechanism of your belt operates. During take-offs and landings, you are advised to keep your feet flat on the floor. Before take-off you should locate the nearest exit and an alternative exit and count the rows of seats between you and the exits to so that you can find them in the dark if necessary.

 In the event that you are forewarned of a possible accident, you should put your hands on your ankles and keep your head down until the plane comes to a complete stop. If smoke is present in the cabin, you should keep your head low and cover your face with napkins, towels, or clothing. If possible, wet these for added protection against smoke inhalation. To evacuate as quickly as possible, follow crew commands and do not take personal belongings with you. Do not jump on escape slides before they are inflated, and when you jump, do so with your arms and legs extended in front of you. When you get to the ground, you should move away from them as quickly as possible, and never smoke near the wreckage.

It can be inferred from the passage that people are more likely to survive fires in aircrafts if they___________

A. wear a safety belt

B. don't smoke in or near a plane

C. read airline safety statistics

D. keep their heads low
#Mẫu giáo
1
DH
Dương Hoàn Anh
22 tháng 8 2018

Đáp án D

Thông tin: If smoke is present in the cabin, you should keep your head low and cover your face with napkins, towels, or clothing.

Dịch nghĩa: Nếu có khói trong khoang ngồi, bạn nên cúi đầu thấp và phủ mặt bằng khăn giấy, khăn tắm, hoặc quần áo.

Có khói trong khoang ngồi chính là khi có hỏa hoạn trên máy bay. Do đó, phương án D. keep their heads low = giữ đầu cúi thấp; là phương án chính xác nhất.

          A. wear a safety belt = đeo dây an toàn.

          B. don't smoke in or near a plane = không hút thuốc trong hoặc gần một chiếc máy bay.

          C. read airline safety statistics = đọc các thống kê an toàn hàng không.

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LQ
Lê Quỳnh Anh
23 tháng 2 2018
Read the following passage and mark the letter A, B, c, or D on your answer sheet to indicate the correct answer for each of the questions from 46 to 55. Increasing numbers of parents in the u.s. are choosing to teach their children at home. In fact, the u.s. Department of Education has estimated that in 1999, about 850,000 children were being homeschoolded. Some educational experts say that the real number is double this estimate, and the ranks of homeschooled children seem to be growing at...
Đọc tiếp

Read the following passage and mark the letter A, B, c, or D on your answer sheet to indicate the correct answer for each of the questions from 46 to 55.

Increasing numbers of parents in the u.s. are choosing to teach their children at home. In fact, the u.s. Department of Education has estimated that in 1999, about 850,000 children were being homeschoolded. Some educational experts say that the real number is double this estimate, and the ranks of homeschooled children seem to be growing at the average rate of about eleven percent every year.

At one time, there was a theory accounting for homeschooling: it was traditionally used for students who could not attend school because of behavioral or learning difficulties. Today, however, more parents are taking on the responsibility of educating their own children at home due to their dissatisfaction with the educational system. Many parents are unhappy about class size, as well as problems inside the classroom. Teacher shortages and lack of funding mean that, in many schools, one teacher is responsible for thirty or forty students. The children are, therefore, deprived of the attention they need. Escalating classroom violence has also motivated some parents to remove their children from school.

Although there have been a lot of areuments for and against it, homeschooling in the u.s. has become a multi-million dollar industry, and it is growing bigger and bigger. There are now plenty of websites, support groups, and conventions that help parents protect their rights and enable them to learn more about educating their children. Though once it was the only choice for troubled children, homeschooling today is an accepted alternative to an educational system that many believe is failing.

According to some experts, the exact number of homeschooled children in the US in the last year of the 20th century must be__________

A. 1,600,000

B. 850,000

C. 1,900,000

D. 1,700,000
#Mẫu giáo
1
DH
Dương Hoàn Anh
23 tháng 2 2018

Đáp án là D. Dựa vào ý: “in 1999, about 850,000 children were being homeschooled. Some educational experts say that the real number is double this estimate” ( vào năm 1999 , khoảng 850 nghìn trẻ em được học tại gia. Một số chuyên gia giáo dục cho rằng con số thực tế là gấp đôi ước tính này) => 850.000x2 = 1.700.000.

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LQ
Lê Quỳnh Anh
29 tháng 8 2018
Read the following passage and mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the questions           According to airline industry statistics, almost 90% of airline accidents are survivable or partially survivable. But passengers can increase their chances of survival by learning and following certain tips. Experts say that you should read and listen to safety instructions before take-off and ask questions if you have uncertainties. You should fasten...
Đọc tiếp

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

          According to airline industry statistics, almost 90% of airline accidents are survivable or partially survivable. But passengers can increase their chances of survival by learning and following certain tips. Experts say that you should read and listen to safety instructions before take-off and ask questions if you have uncertainties. You should fasten your seat belt low on your hips and as tightly as possible. Of course, you should also know how the release mechanism of your belt operates. During take-offs and landings, you are advised to keep your feed flat on the floor. Before take-off you should locate the nearest exit and an alternative exit and count the rows of seats between you and the exits so that you can find them in the dark if necessary

          In the event that you are forewarned of a possible accident, you should put your hands on your ankles and keep your head down until the plane comes to a complete stop. If smoke is present in the cabin, you should keep your head low and cover your face with napkin, towels or clothing. If possible, wet these for added protection against smoke inhalation. To evacuate as quickly as possible, follow crew commands and do not take personal belongings with you. Do not jump on escape slides before they’re fully inflated, and when you jump, do so with your arms and legs extended in front of you. When you get to the ground, you should move away from the plane as quickly as possible, and never smoke near the wreckage

Travelers are urged by experts to read and listen to safety instructions _____

A. in an emergency 

B. before locating the exits

C. if smoke is in the cabin 

D. before take-off
#Mẫu giáo
1
DH
Dương Hoàn Anh
29 tháng 8 2018

Đáp án D

Khách du lịch được thuyết phục/ đề xuất  đọc và nghe hướng dẫn an toàn bởi các chuyên gia_____

Đáp án D – Trước khi cất cánh

Dẫn chứng - Câu 3 – Đoạn 1: “Experts say that you should read and listen to safety instructions before take-off and ask questions if you have uncertainties.”

Tạm dịch: Các chuyên gia nói rằng bạn nên đọc và lắng nghe hướng dẫn an toàn trước khi cất cánh và đặt câu hỏi nếu bạn không chắc chắn.

Các đáp án khác

A – trong trường hợp khẩn cấp

B – trước khi xác định lối ra

C – nếu khói trong cabin 

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LQ
Lê Quỳnh Anh
9 tháng 4 2017
Read the following passage on transport, 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.     (1) Increasing numbers of parents in the U.S. are choosing to teach their children at home. In fact, the U.S. Department of Education has estimated that in 1999, about 850,000 children were being homeschooled. Some educational experts say that the real number is double this estimate, and the ranks of homeschooled children seem...
Đọc tiếp

Read the following passage on transport, 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.

    (1) Increasing numbers of parents in the U.S. are choosing to teach their children at home. In fact, the U.S. Department of Education has estimated that in 1999, about 850,000 children were being homeschooled. Some educational experts say that the real number is double this estimate, and the ranks of homeschooled children seem to be growing at the average rate of about eleven percent every year.

    (2) At one time, there was a theory accounting for homeschooling: it was traditionally used for students who could not attend school because of behavioral or learning difficulties. Today, however, more parents are taking on the responsibility of educating their own children at home due to their dissatisfaction with the educational system. Many parents are unhappy about class size, as well as problems inside the classroom. Teacher shortages and lack of funding mean that, in many schools, one teacher is responsible for thirty or forty students. The children are, therefore, deprived of the attention they need. Escalating classroom violence has also motivated some parents to remove their children from school.

    (3) Although there have been a lot of arguments for and against it, homeschooling in the U.S. has become a multi-million dollar industry, and it is growing bigger and bigger. There are now plenty of websites, support groups, and conventions that help parents protect their rights and enable them to learn more about educating their children. Though once it was the only choice for troubled children, homeschooling today is an accepted alternative to an educational system that many believe is failing.

The attitude of the author towards homeschooling can be best described as _____.

A. acceptable

B. favorable

C. remarkable

D. unfavorable
#Mẫu giáo
1
DH
Dương Hoàn Anh
9 tháng 4 2017

Đáp án B

favorable: (a) có thiện chí, tán thành

Quan điểm này được bộc lộ ở câu cuối đoạn: “Though once it was the only choice for troubled children, homeschooling today is an accepted alternative to an educational system that many believe is failing.”

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LQ
Lê Quỳnh Anh
6 tháng 5 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 43 to 50.According to airline industry statistics, almost 90 percent of airline accidents are survivable or partially survivable. But passengers can increase their chances of survival by learning and following certain tips. Experts say that you should read and listen to safety instructions before take-off and ask questions if you have uncertainties. You...
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.

According to airline industry statistics, almost 90 percent of airline accidents are survivable or partially survivable. But passengers can increase their chances of survival by learning and following certain tips. Experts say that you should read and listen to safety instructions before take-off and ask questions if you have uncertainties. You should fasten your seat belt low on your hips and as tightly as possible. Of course, you should also know how ­to release mechanism of your belt operates. During take-offs and landings, you are advised to keep your feet flat on the floor. Before take-off you should locate the nearest exit and an alternative exit and count the rows of seats between you and the exits to so that you can find them in the dark if necessary.

 In the event that you are forewarned of a possible accident, you should put your hands on your ankles and keep your head down until the plane comes to a complete stop. If smoke is present in the cabin, you should keep your head low and cover your face with napkins, towels, or clothing. If possible, wet these for added protection against smoke inhalation. To evacuate as quickly as possible, follow crew commands and do not take personal belongings with you. Do not jump on escape slides before they are inflated, and when you jump, do so with your arms and legs extended in front of you. When you get to the ground, you should move away from them as quickly as possible, and never smoke near the wreckage.

The word "wreckage" in the second paragraph is closest in meaning to

A. material

B. damage

C. prosperity

D. wreck
#Mẫu giáo
1
DH
Dương Hoàn Anh
6 tháng 5 2018

Đáp án B

Giải thích: wreckage (n) = sự đổ nát

                    Damage (n) = sự phá hoại

Dịch nghĩa: When you get to the ground, you should move away from them as quickly as possible, and never smoke near the wreckage = Khi bạn đặt chân lên mặt đất, bạn nên chạy ra xa khỏi chúng càng nhanh càng tốt, và không bao giờ hút thuốc gần nơi đổ nát.

          A. material (n) = nguyên liệu

          C. prosperity (n) = sự thịnh vượng

          D. wreck (n) = sự chìm, đắm tàu; sự phá sản; sự sụp đổ; tàn tích, xác tàu

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LQ
Lê Quỳnh Anh
16 tháng 7 2017
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.According to airline industry statistics, almost 90 percent of airline accidents are survivable or partially survivable. But passengers can increase their chances of survival by learning and following certain tips. Experts say that you should read and listen to safety instructions before take-off and ask questions if you have uncertainties. You...
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.

According to airline industry statistics, almost 90 percent of airline accidents are survivable or partially survivable. But passengers can increase their chances of survival by learning and following certain tips. Experts say that you should read and listen to safety instructions before take-off and ask questions if you have uncertainties. You should fasten your seat belt low on your hips and as tightly as possible. Of course, you should also know how ­to release mechanism of your belt operates. During take-offs and landings, you are advised to keep your feet flat on the floor. Before take-off you should locate the nearest exit and an alternative exit and count the rows of seats between you and the exits to so that you can find them in the dark if necessary.

 In the event that you are forewarned of a possible accident, you should put your hands on your ankles and keep your head down until the plane comes to a complete stop. If smoke is present in the cabin, you should keep your head low and cover your face with napkins, towels, or clothing. If possible, wet these for added protection against smoke inhalation. To evacuate as quickly as possible, follow crew commands and do not take personal belongings with you. Do not jump on escape slides before they are inflated, and when you jump, do so with your arms and legs extended in front of you. When you get to the ground, you should move away from them as quickly as possible, and never smoke near the wreckage.

The word "inflated" in the second paragraph is closest in meaning to

A. extended

B. assembled 

C. lifted

D. expanded
#Mẫu giáo
1
DH
Dương Hoàn Anh
16 tháng 7 2017

Đáp án D

Giải thích: inflated (v) = phồng lên

                    Expanded (v) = mở rộng ra (về kích thước)

Dịch nghĩa: Do not jump on escape slides before they are inflated = Đừng nhảy trên dù thoát hiểm trước khi chúng được làm phồng lên.

          A. extended (v) = gia tăng, kéo dài, mở rộng

          B. assembled (v) = lắp ráp, tập hợp

          C. lifted (v) = tăng lên, nâng lên

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