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Tổng hợp đề luyện thi Đại Học môn Tiếng Anh có lời giải(Đề số 9)

Read the following passage and choose the letter A, B, C or D to indicate the correct answer to each of the questions from 35 to 42. In the USA, the UK and many other countries, a lot of babies were born in the “baby boom” of the late 1940s and 1950s; after that the birth-rate fell. Baby boomers have now retired, or are approaching retirement, and this is causing headaches for many organizations: there are not enough people to succeed their top managers when they retire. Does your organization have key staff who can’t easily be replaced? A CEO or financial director, perhaps, or a technical expert with knowledge that nobody else in the organization has. If your answer is “yes”, what will happen when they retire, or leave for another company? Will you wait until the last moment before looking for someone to replace them? Or is your organization thinking about likely future changes now, as it should be, and making plans, so that there is likely to be someone ready to replace the person leaving? If the answer is that you are planning ahead, your organization is carrying out succession planning. Succession planning means looking inside the organization for “high-fliers” - current staff members with the potential to fill key positions - and planning the training, responsibilities and promotion they need, to make them ready when a senior vacancy occurs - which may not be for several years. The company benefits by being able to make an internal promotion when a key person leaves, and in the meantime it benefits by developing the skills of its high-fliers and encouraging them to stay. And the high-fliers benefit, because they achieve their full potential, a career is planned for them within the organization, and they can look forward to a senior post in time. The training program planned for the high-fliers will help them to develop the leadership skills they need for more senior roles, skills such as planning long-term strategies. A career path is also planned, so that each high-flier moves into a number of different positions over a few years, to gain the experience and know ledge they need. Sometimes a staff member is chosen as a potential successor to a particular senior manager, but a better method is for organizations to select a number of high-fliers, and prepare them for a range of senior roles. An organization can’t be certain when a particular senior manager will leave. Having a group of people being prepared fee top positions makes it easier to replace someone who leaves unexpectedly, and also means that there are other people available if a high-flier leaves the company. The word “succeed” in the passage is closest in meaning to ________.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 0.9 K lượt xem 6 năm trước
Đề kiểm tra Este có lời giải chi tiết (Đề số 1)

Benzyl axetat là một loại este có mùi hoa nhài. Hãy cho biết số nguyên tử cacbon có trong phân tử benzyl axetat?

Hóa học Lớp 12
Xem chi tiết 10 K lượt xem 6 năm trước
Tổng hợp đề luyện thi Đại Học môn Tiếng Anh có lời giải(Đề số 9)

Read the following passage and choose the letter A, B, C or D to indicate the correct answer to each of the questions from 35 to 42. In the USA, the UK and many other countries, a lot of babies were born in the “baby boom” of the late 1940s and 1950s; after that the birth-rate fell. Baby boomers have now retired, or are approaching retirement, and this is causing headaches for many organizations: there are not enough people to succeed their top managers when they retire. Does your organization have key staff who can’t easily be replaced? A CEO or financial director, perhaps, or a technical expert with knowledge that nobody else in the organization has. If your answer is “yes”, what will happen when they retire, or leave for another company? Will you wait until the last moment before looking for someone to replace them? Or is your organization thinking about likely future changes now, as it should be, and making plans, so that there is likely to be someone ready to replace the person leaving? If the answer is that you are planning ahead, your organization is carrying out succession planning. Succession planning means looking inside the organization for “high-fliers” - current staff members with the potential to fill key positions - and planning the training, responsibilities and promotion they need, to make them ready when a senior vacancy occurs - which may not be for several years. The company benefits by being able to make an internal promotion when a key person leaves, and in the meantime it benefits by developing the skills of its high-fliers and encouraging them to stay. And the high-fliers benefit, because they achieve their full potential, a career is planned for them within the organization, and they can look forward to a senior post in time. The training program planned for the high-fliers will help them to develop the leadership skills they need for more senior roles, skills such as planning long-term strategies. A career path is also planned, so that each high-flier moves into a number of different positions over a few years, to gain the experience and know ledge they need. Sometimes a staff member is chosen as a potential successor to a particular senior manager, but a better method is for organizations to select a number of high-fliers, and prepare them for a range of senior roles. An organization can’t be certain when a particular senior manager will leave. Having a group of people being prepared fee top positions makes it easier to replace someone who leaves unexpectedly, and also means that there are other people available if a high-flier leaves the company. What does the passage mainly discuss?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1 K lượt xem 6 năm trước
Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án (Đề số 18)

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions. Sarah: Your pictures are beautiful. Brendon: We ……………….. more if we had not run out of film.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 7.6 K lượt xem 6 năm trước
Bài luyện tập số 1

Trong các cặp phản ứng sau, phản ứng nào có tốc độ lớn nhất

Hóa học Lớp 10
Xem chi tiết 11.6 K lượt xem 6 năm trước
Tổng hợp đề luyện thi Đại Học môn Tiếng Anh có lời giải(Đề số 9)

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. Ever since humans have inhabited the earth, they have made use of various forms of communication. Generally, this expression of thoughts and feelings has been in the form of oral speech. When there is a language barrier, communication is accomplished through sign language in which motions stand for letters, words, and ideas. Tourists, the deaf, and the mute have had to resort to this form of expression. Many of these symbols of whole words are very picturesque and exact and can be used internationally, spelling, however, cannot. Body language transmits ideas or thoughts by certain actions, either intentionally or unintentionally. A wink can be a way of flirting or indicating that the party is only joking. A nod signifies approval, while shaking the head indicates a negative reaction. Other forms of nonlinguistic language can be found in Braille (a system of raised dots read with the fingertips), signal flags, Morse code, and smoke signals. Road maps and picture signs also guide, warn, and instruct people. While verbalization is the most common form of language, other systems and techniques also express human thoughts and feelings. People need to communicate in order to_________.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 583 lượt xem 6 năm trước
50 bài toán hay và khó về este đa chức(P2)

X, Y là hai hợp chất hữu cơ kế tiếp thuộc dãy đồng đẳng của axit acrylic; Z là axit hai chức, mạch hở. Đốt cháy 13,44 gam hỗn hợp E chứa X, Y, Z cần dùng 0,29 mol O2, thu được 4,68 gam nước. Mặt khác hiđro hóa hoàn toàn 13,44 gam E cần dùng 0,05 mol H2 (xúc tác Ni, t0), thu được hỗn hợp F. Lấy toàn bộ F tác dụng với 400 ml dung dịch NaOH 1M, cô cạn dung dịch sau phản ứng, thu được hỗn hợp rắn T. Phần trăm khối lượng của muối có khối lượng phân tử nhỏ nhất trong hỗn hợp T là.

Hóa học Tốt nghiệp THPT
Xem chi tiết 10.1 K lượt xem 6 năm trước
Bài luyện tập số 1

Khẳng định nào sau đây không đúng

Hóa học Lớp 10
Xem chi tiết 2.7 K lượt xem 6 năm trước
Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án (Đề số 18)

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions. The more you work, ……………….. you can earn.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 2 K lượt xem 6 năm trước
Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải (Đề số 22)

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions. Question 43: The Oxford Dictionary is well known for including many different meanings of words and to give real examples.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 791 lượt xem 6 năm trước
Tổng hợp đề luyện thi Đại Học môn Tiếng Anh có lời giải(Đề số 9)

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. Ever since humans have inhabited the earth, they have made use of various forms of communication. Generally, this expression of thoughts and feelings has been in the form of oral speech. When there is a language barrier, communication is accomplished through sign language in which motions stand for letters, words, and ideas. Tourists, the deaf, and the mute have had to resort to this form of expression. Many of these symbols of whole words are very picturesque and exact and can be used internationally, spelling, however, cannot. Body language transmits ideas or thoughts by certain actions, either intentionally or unintentionally. A wink can be a way of flirting or indicating that the party is only joking. A nod signifies approval, while shaking the head indicates a negative reaction. Other forms of nonlinguistic language can be found in Braille (a system of raised dots read with the fingertips), signal flags, Morse code, and smoke signals. Road maps and picture signs also guide, warn, and instruct people. While verbalization is the most common form of language, other systems and techniques also express human thoughts and feelings. According to the passage, which of the following is NOT true?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 692 lượt xem 6 năm trước
Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án (Đề số 18)

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions. It was in this house ……………….. I spent my childhood.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1.6 K lượt xem 6 năm trước
Bài luyện tập số 1

Phát biểu nào sau đây đúng

Hóa học Lớp 10
Xem chi tiết 1.1 K lượt xem 6 năm trước
Tổng hợp đề luyện thi Đại Học môn Tiếng Anh có lời giải(Đề số 9)

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. Ever since humans have inhabited the earth, they have made use of various forms of communication. Generally, this expression of thoughts and feelings has been in the form of oral speech. When there is a language barrier, communication is accomplished through sign language in which motions stand for letters, words, and ideas. Tourists, the deaf, and the mute have had to resort to this form of expression. Many of these symbols of whole words are very picturesque and exact and can be used internationally, spelling, however, cannot. Body language transmits ideas or thoughts by certain actions, either intentionally or unintentionally. A wink can be a way of flirting or indicating that the party is only joking. A nod signifies approval, while shaking the head indicates a negative reaction. Other forms of nonlinguistic language can be found in Braille (a system of raised dots read with the fingertips), signal flags, Morse code, and smoke signals. Road maps and picture signs also guide, warn, and instruct people. While verbalization is the most common form of language, other systems and techniques also express human thoughts and feelings. The word “these” in the first paragraph refers to_____. 

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 625 lượt xem 6 năm trước
Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải (Đề số 22)

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. Overpopulation, the situation of having large numbers of people with too few resources and too little space, is closely associated with poverty. It can result from high population density, or from low amounts of resources, or from both. Excessively high population densities put stress on available resources. Only a certain number of people can be supported on a given area of land, and that number depends on how much food and other resources the land can provide. In countries where people live primarily by means of simple farming, gardening, herding, hunting, and gathering, even large areas of land can support only small numbers of people because these labour intensive subsistence activities produce only small amounts of food. In developed countries such as the United States, Japan, and the countries of Western Europe, overpopulation generally is not considered a major cause of poverty. These countries produce large quantitics of food through mechanized farming, which depends on commercial fertilizers, large-scale irrigation, and agricultural machinery. This form of production provides enough food to support the high densities of people in metropolitan areas. A country's level of poverty can depend greatly on its mix of population density and agricultural productivity. Bangladesh, for example, has one of the world's highest population densities, with 1,147 persons per sq km. A large majority of the people of Bangladesh engage in low - productivity manual farming, which contributes to the country's extremely high level of poverty. Some of the smaller countries in Western Europe, such as the Netherlands and Belgium, have high population densities as well. These countries practise mechanized farming and are involved in high-tech industries, however, and therefore have high standards of living. At the other end of the spectrum, many countries in sub-Saharan Africa have population densities of less than 30 persons per sq km. Many people in these countries practise manual subsistence farming; these countries also have infertile land, and lack the economic resources and technology to boost productivity. As a consequence, these nations are very poor. The United Slates has both relatively low population density and high agricultural productivity; it is one of the world's wealthiest nations. High birth rates contribute to overpopulation in many developing countries. Children are assets to many poor families because the provide labour, usually for farming. Cultural norms in traditionally rural societies commonly sanction the value of large families. Also, the governments of developing countries often provide little or no support, financial or political, for family planning; even people who wish to keep their families small have difficulty doing so. For all these reasons, developing countries lend to have high rates of population growth. Question 42: Which of the following could be the best title for the passage?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 540 lượt xem 6 năm trước
Đề kiểm tra Este có lời giải chi tiết (Đề số 1)

Phát biểu nào sau đây về este không chính xác?

Hóa học Lớp 12
Xem chi tiết 13.9 K lượt xem 6 năm trước
Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án (Đề số 18)

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions. The Spratly Islands and the Paracel Islands ……………….. Vietnam.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 531 lượt xem 6 năm trước
Tổng hợp đề luyện thi Đại Học môn Tiếng Anh có lời giải(Đề số 9)

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. Ever since humans have inhabited the earth, they have made use of various forms of communication. Generally, this expression of thoughts and feelings has been in the form of oral speech. When there is a language barrier, communication is accomplished through sign language in which motions stand for letters, words, and ideas. Tourists, the deaf, and the mute have had to resort to this form of expression. Many of these symbols of whole words are very picturesque and exact and can be used internationally, spelling, however, cannot. Body language transmits ideas or thoughts by certain actions, either intentionally or unintentionally. A wink can be a way of flirting or indicating that the party is only joking. A nod signifies approval, while shaking the head indicates a negative reaction. Other forms of nonlinguistic language can be found in Braille (a system of raised dots read with the fingertips), signal flags, Morse code, and smoke signals. Road maps and picture signs also guide, warn, and instruct people. While verbalization is the most common form of language, other systems and techniques also express human thoughts and feelings. The word “accomplished” in the first paragraph is closest in meaning to _____.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 2.7 K lượt xem 6 năm trước
Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án (Đề số 18)

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions. I gave him my e-mail address ……………….. he could keep in touch with me.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 2.1 K lượt xem 6 năm trước
Tổng hợp đề luyện thi Đại Học môn Tiếng Anh có lời giải(Đề số 9)

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. Ever since humans have inhabited the earth, they have made use of various forms of communication. Generally, this expression of thoughts and feelings has been in the form of oral speech. When there is a language barrier, communication is accomplished through sign language in which motions stand for letters, words, and ideas. Tourists, the deaf, and the mute have had to resort to this form of expression. Many of these symbols of whole words are very picturesque and exact and can be used internationally, spelling, however, cannot. Body language transmits ideas or thoughts by certain actions, either intentionally or unintentionally. A wink can be a way of flirting or indicating that the party is only joking. A nod signifies approval, while shaking the head indicates a negative reaction. Other forms of nonlinguistic language can be found in Braille (a system of raised dots read with the fingertips), signal flags, Morse code, and smoke signals. Road maps and picture signs also guide, warn, and instruct people. While verbalization is the most common form of language, other systems and techniques also express human thoughts and feelings. What is the best title for the passage?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 401 lượt xem 6 năm trước
Đề kiểm tra Este có lời giải chi tiết (Đề số 1)

(Đề NC) Este X có công thức phân tử C3H4O2. Thuỷ phân X trong môi trường kiềm, đun nóng thu được hai chất Y và Z. Z tác dụng với dung dịch H2SO4 loãng thu được chất hữu cơ T. Phát biểu không đúng là

Hóa học Lớp 12
Xem chi tiết 10 K lượt xem 6 năm trước
Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải (Đề số 22)

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. Overpopulation, the situation of having large numbers of people with too few resources and too little space, is closely associated with poverty. It can result from high population density, or from low amounts of resources, or from both. Excessively high population densities put stress on available resources. Only a certain number of people can be supported on a given area of land, and that number depends on how much food and other resources the land can provide. In countries where people live primarily by means of simple farming, gardening, herding, hunting, and gathering, even large areas of land can support only small numbers of people because these labour intensive subsistence activities produce only small amounts of food. In developed countries such as the United States, Japan, and the countries of Western Europe, overpopulation generally is not considered a major cause of poverty. These countries produce large quantitics of food through mechanized farming, which depends on commercial fertilizers, large-scale irrigation, and agricultural machinery. This form of production provides enough food to support the high densities of people in metropolitan areas. A country's level of poverty can depend greatly on its mix of population density and agricultural productivity. Bangladesh, for example, has one of the world's highest population densities, with 1,147 persons per sq km. A large majority of the people of Bangladesh engage in low - productivity manual farming, which contributes to the country's extremely high level of poverty. Some of the smaller countries in Western Europe, such as the Netherlands and Belgium, have high population densities as well. These countries practise mechanized farming and are involved in high-tech industries, however, and therefore have high standards of living. At the other end of the spectrum, many countries in sub-Saharan Africa have population densities of less than 30 persons per sq km. Many people in these countries practise manual subsistence farming; these countries also have infertile land, and lack the economic resources and technology to boost productivity. As a consequence, these nations are very poor. The United Slates has both relatively low population density and high agricultural productivity; it is one of the world's wealthiest nations. High birth rates contribute to overpopulation in many developing countries. Children are assets to many poor families because the provide labour, usually for farming. Cultural norms in traditionally rural societies commonly sanction the value of large families. Also, the governments of developing countries often provide little or no support, financial or political, for family planning; even people who wish to keep their families small have difficulty doing so. For all these reasons, developing countries lend to have high rates of population growth. Question 41: Which of the following is a contributor to overpopulation in many developing countries?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 608 lượt xem 6 năm trước
Tổng hợp đề luyện thi Đại Học môn Tiếng Anh có lời giải(Đề số 9)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 25 to 29. Fill in the appropriate word in question 29 Keeping the World in Our Pockets Faster processors and advances in memory technology have made today’s smartphones much more powerful than a lot of computers from just a decade ago. With wireless technology, people can surf the Internet, play online games, send e-mail, and do (25) _____ all the things they once could only do on a computer. (26) _____, they have the power to do things constantly at their fingertips. Many people (27) ____ that while smartphones are powerful tools, they are making people reliant on them. Why would a person need to learn to read a map when he can get directions to anywhere by simply asking his phone a question? Who needs to learn maths when you have immense calculating power in your pocket at all times? What (28) _____ is there to memorise facts about history, art, or geography when that information is readily available from a portable Internet interface? There are just some of the questions being asked and answered as smartphone usage continues to spread. Like any technology, smartphones have their advantages, but they do have disadvantages as well that we must (29) _____ an eye on.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1.1 K lượt xem 6 năm trước
Đề kiểm tra Este có lời giải chi tiết (Đề số 1)

Khi thuỷ phân (trong môi trường axit) một este có công thức phân tử C7H6O2 sinh ra hai sản phẩm X và Y. X khử được AgNO3 trong amoniac, còn Y tác dụng với nước brom sinh ra kết tủa trắng. Tên gọi của este đó là

Hóa học Lớp 12
Xem chi tiết 1.8 K lượt xem 6 năm trước
Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án (Đề số 18)

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions. I have been to Ho Chi Minh City ……………….. of times.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 2.8 K lượt xem 6 năm trước
Tổng hợp đề luyện thi Đại Học môn Tiếng Anh có lời giải(Đề số 9)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 25 to 29. Fill in the appropriate word in question 28 Keeping the World in Our Pockets Faster processors and advances in memory technology have made today’s smartphones much more powerful than a lot of computers from just a decade ago. With wireless technology, people can surf the Internet, play online games, send e-mail, and do (25) _____ all the things they once could only do on a computer. (26) _____, they have the power to do things constantly at their fingertips. Many people (27) ____ that while smartphones are powerful tools, they are making people reliant on them. Why would a person need to learn to read a map when he can get directions to anywhere by simply asking his phone a question? Who needs to learn maths when you have immense calculating power in your pocket at all times? What (28) _____ is there to memorise facts about history, art, or geography when that information is readily available from a portable Internet interface? There are just some of the questions being asked and answered as smartphone usage continues to spread. Like any technology, smartphones have their advantages, but they do have disadvantages as well that we must (29) _____ an eye on.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1.9 K lượt xem 6 năm trước
50 bài toán hay và khó về este đa chức(P2)

X, Y, Z là 3 este đều hai chức, mạch hở (trong đó X, Y đều no; Z không no chứa một nối đôi C=C). Đun nóng 24,16 gam hỗn hợp E chứa X, Y, Z với 120 gam dung dịch NaOH 12% (vừa đủ), thu được hỗn hợp chứa 2 muối và hỗn hợp F gồm 2 ancol đều đơn chức hơn kém nhau một nguyên tử cacbon. Đun F với CuO thu được hỗn hợp gồm 2 anđehit, rồi cho tác dụng với dung dịch AgNO3/NH3 (dư) thu được 142,56 gam Ag. Mặt khác đốt cháy 24,16 gam E cần dùng 0,92 mol O2. Phần trăm khối lượng của Z trong hỗn hợp E là

Hóa học Tốt nghiệp THPT
Xem chi tiết 10.7 K lượt xem 6 năm trước
Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải (Đề số 22)

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. Overpopulation, the situation of having large numbers of people with too few resources and too little space, is closely associated with poverty. It can result from high population density, or from low amounts of resources, or from both. Excessively high population densities put stress on available resources. Only a certain number of people can be supported on a given area of land, and that number depends on how much food and other resources the land can provide. In countries where people live primarily by means of simple farming, gardening, herding, hunting, and gathering, even large areas of land can support only small numbers of people because these labour intensive subsistence activities produce only small amounts of food. In developed countries such as the United States, Japan, and the countries of Western Europe, overpopulation generally is not considered a major cause of poverty. These countries produce large quantitics of food through mechanized farming, which depends on commercial fertilizers, large-scale irrigation, and agricultural machinery. This form of production provides enough food to support the high densities of people in metropolitan areas. A country's level of poverty can depend greatly on its mix of population density and agricultural productivity. Bangladesh, for example, has one of the world's highest population densities, with 1,147 persons per sq km. A large majority of the people of Bangladesh engage in low - productivity manual farming, which contributes to the country's extremely high level of poverty. Some of the smaller countries in Western Europe, such as the Netherlands and Belgium, have high population densities as well. These countries practise mechanized farming and are involved in high-tech industries, however, and therefore have high standards of living. At the other end of the spectrum, many countries in sub-Saharan Africa have population densities of less than 30 persons per sq km. Many people in these countries practise manual subsistence farming; these countries also have infertile land, and lack the economic resources and technology to boost productivity. As a consequence, these nations are very poor. The United Slates has both relatively low population density and high agricultural productivity; it is one of the world's wealthiest nations. High birth rates contribute to overpopulation in many developing countries. Children are assets to many poor families because the provide labour, usually for farming. Cultural norms in traditionally rural societies commonly sanction the value of large families. Also, the governments of developing countries often provide little or no support, financial or political, for family planning; even people who wish to keep their families small have difficulty doing so. For all these reasons, developing countries lend to have high rates of population growth. Question 40: The word "infertile" in paragraph 4 probably means _______.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1.5 K lượt xem 6 năm trước
Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án (Đề số 18)

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions. Investors were seriously ……………….. when the stock market began to crash.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1.2 K lượt xem 6 năm trước
Tổng hợp đề luyện thi Đại Học môn Tiếng Anh có lời giải(Đề số 9)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 25 to 29. Fill in the appropriate word in question 25 Keeping the World in Our Pockets Faster processors and advances in memory technology have made today’s smartphones much more powerful than a lot of computers from just a decade ago. With wireless technology, people can surf the Internet, play online games, send e-mail, and do (25) _____ all the things they once could only do on a computer. (26) _____, they have the power to do things constantly at their fingertips. Many people (27) ____ that while smartphones are powerful tools, they are making people reliant on them. Why would a person need to learn to read a map when he can get directions to anywhere by simply asking his phone a question? Who needs to learn maths when you have immense calculating power in your pocket at all times? What (28) _____ is there to memorise facts about history, art, or geography when that information is readily available from a portable Internet interface? There are just some of the questions being asked and answered as smartphone usage continues to spread. Like any technology, smartphones have their advantages, but they do have disadvantages as well that we must (29) _____ an eye on.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 814 lượt xem 6 năm trước
Đề kiểm tra Este có lời giải chi tiết (Đề số 1)

Xà phòng được điều chế bằng cách

Hóa học Lớp 12
Xem chi tiết 9.5 K lượt xem 6 năm trước
Tổng hợp đề luyện thi Đại Học môn Tiếng Anh có lời giải(Đề số 9)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 25 to 29. Fill in the appropriate word in question 26 Keeping the World in Our Pockets Faster processors and advances in memory technology have made today’s smartphones much more powerful than a lot of computers from just a decade ago. With wireless technology, people can surf the Internet, play online games, send e-mail, and do (25) _____ all the things they once could only do on a computer. (26) _____, they have the power to do things constantly at their fingertips. Many people (27) ____ that while smartphones are powerful tools, they are making people reliant on them. Why would a person need to learn to read a map when he can get directions to anywhere by simply asking his phone a question? Who needs to learn maths when you have immense calculating power in your pocket at all times? What (28) _____ is there to memorise facts about history, art, or geography when that information is readily available from a portable Internet interface? There are just some of the questions being asked and answered as smartphone usage continues to spread. Like any technology, smartphones have their advantages, but they do have disadvantages as well that we must (29) _____ an eye on.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1.3 K lượt xem 6 năm trước
Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải (Đề số 22)

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. Overpopulation, the situation of having large numbers of people with too few resources and too little space, is closely associated with poverty. It can result from high population density, or from low amounts of resources, or from both. Excessively high population densities put stress on available resources. Only a certain number of people can be supported on a given area of land, and that number depends on how much food and other resources the land can provide. In countries where people live primarily by means of simple farming, gardening, herding, hunting, and gathering, even large areas of land can support only small numbers of people because these labour intensive subsistence activities produce only small amounts of food. In developed countries such as the United States, Japan, and the countries of Western Europe, overpopulation generally is not considered a major cause of poverty. These countries produce large quantitics of food through mechanized farming, which depends on commercial fertilizers, large-scale irrigation, and agricultural machinery. This form of production provides enough food to support the high densities of people in metropolitan areas. A country's level of poverty can depend greatly on its mix of population density and agricultural productivity. Bangladesh, for example, has one of the world's highest population densities, with 1,147 persons per sq km. A large majority of the people of Bangladesh engage in low - productivity manual farming, which contributes to the country's extremely high level of poverty. Some of the smaller countries in Western Europe, such as the Netherlands and Belgium, have high population densities as well. These countries practise mechanized farming and are involved in high-tech industries, however, and therefore have high standards of living. At the other end of the spectrum, many countries in sub-Saharan Africa have population densities of less than 30 persons per sq km. Many people in these countries practise manual subsistence farming; these countries also have infertile land, and lack the economic resources and technology to boost productivity. As a consequence, these nations are very poor. The United Slates has both relatively low population density and high agricultural productivity; it is one of the world's wealthiest nations. High birth rates contribute to overpopulation in many developing countries. Children are assets to many poor families because the provide labour, usually for farming. Cultural norms in traditionally rural societies commonly sanction the value of large families. Also, the governments of developing countries often provide little or no support, financial or political, for family planning; even people who wish to keep their families small have difficulty doing so. For all these reasons, developing countries lend to have high rates of population growth. Question 39: Bangladesh is a country where the level of poverty depends greatly on _______.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 701 lượt xem 6 năm trước
30 đề luyện thi Đại Học môn Tiếng Anh cực hay có lời giải (Đề số 4)

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each of sentences in the following questions. He didn’t hurry. Therefore, he missed the plane.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 754 lượt xem 6 năm trước
Đề thi thử THPTQG năm 2019 chuẩn cấu trúc của bộ giáo dục có đáp án (Đề số 18)

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions. …………….., she received a big applause.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1.7 K lượt xem 6 năm trước
Tổng hợp đề luyện thi Đại Học môn Tiếng Anh có lời giải(Đề số 9)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 25 to 29. Fill in the appropriate word in question 25 Keeping the World in Our Pockets Faster processors and advances in memory technology have made today’s smartphones much more powerful than a lot of computers from just a decade ago. With wireless technology, people can surf the Internet, play online games, send e-mail, and do (25) _____ all the things they once could only do on a computer. (26) _____, they have the power to do things constantly at their fingertips. Many people (27) ____ that while smartphones are powerful tools, they are making people reliant on them. Why would a person need to learn to read a map when he can get directions to anywhere by simply asking his phone a question? Who needs to learn maths when you have immense calculating power in your pocket at all times? What (28) _____ is there to memorise facts about history, art, or geography when that information is readily available from a portable Internet interface? There are just some of the questions being asked and answered as smartphone usage continues to spread. Like any technology, smartphones have their advantages, but they do have disadvantages as well that we must (29) _____ an eye on.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 4.3 K lượt xem 6 năm trước
Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải (Đề số 22)

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. Overpopulation, the situation of having large numbers of people with too few resources and too little space, is closely associated with poverty. It can result from high population density, or from low amounts of resources, or from both. Excessively high population densities put stress on available resources. Only a certain number of people can be supported on a given area of land, and that number depends on how much food and other resources the land can provide. In countries where people live primarily by means of simple farming, gardening, herding, hunting, and gathering, even large areas of land can support only small numbers of people because these labour intensive subsistence activities produce only small amounts of food. In developed countries such as the United States, Japan, and the countries of Western Europe, overpopulation generally is not considered a major cause of poverty. These countries produce large quantitics of food through mechanized farming, which depends on commercial fertilizers, large-scale irrigation, and agricultural machinery. This form of production provides enough food to support the high densities of people in metropolitan areas. A country's level of poverty can depend greatly on its mix of population density and agricultural productivity. Bangladesh, for example, has one of the world's highest population densities, with 1,147 persons per sq km. A large majority of the people of Bangladesh engage in low - productivity manual farming, which contributes to the country's extremely high level of poverty. Some of the smaller countries in Western Europe, such as the Netherlands and Belgium, have high population densities as well. These countries practise mechanized farming and are involved in high-tech industries, however, and therefore have high standards of living. At the other end of the spectrum, many countries in sub-Saharan Africa have population densities of less than 30 persons per sq km. Many people in these countries practise manual subsistence farming; these countries also have infertile land, and lack the economic resources and technology to boost productivity. As a consequence, these nations are very poor. The United Slates has both relatively low population density and high agricultural productivity; it is one of the world's wealthiest nations. High birth rates contribute to overpopulation in many developing countries. Children are assets to many poor families because the provide labour, usually for farming. Cultural norms in traditionally rural societies commonly sanction the value of large families. Also, the governments of developing countries often provide little or no support, financial or political, for family planning; even people who wish to keep their families small have difficulty doing so. For all these reasons, developing countries lend to have high rates of population growth. Question 38: In certain countries, large areas of land can only yield small amounts of food because _______.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1 K lượt xem 6 năm trước
30 đề luyện thi Đại Học môn Tiếng Anh cực hay có lời giải (Đề số 4)

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each of sentences in the following questions. The song says about the love of two young students. She is studying the song.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 27.8 K lượt xem 6 năm trước
Tổng hợp đề luyện thi Đại Học môn Tiếng Anh có lời giải(Đề số 9)

Mark the letter A, B, C, or D on your answer sheet to indicate the option that best completes each of the following exchanges.  “Could you show me how this machine works, please?”       “__________” 

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 9.8 K lượt xem 6 năm trước
30 đề luyện thi Đại Học môn Tiếng Anh cực hay có lời giải (Đề số 4)

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 last time I saw Rose was three years ago.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1.4 K lượt xem 6 năm trước
Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải (Đề số 22)

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. Overpopulation, the situation of having large numbers of people with too few resources and too little space, is closely associated with poverty. It can result from high population density, or from low amounts of resources, or from both. Excessively high population densities put stress on available resources. Only a certain number of people can be supported on a given area of land, and that number depends on how much food and other resources the land can provide. In countries where people live primarily by means of simple farming, gardening, herding, hunting, and gathering, even large areas of land can support only small numbers of people because these labour intensive subsistence activities produce only small amounts of food. In developed countries such as the United States, Japan, and the countries of Western Europe, overpopulation generally is not considered a major cause of poverty. These countries produce large quantitics of food through mechanized farming, which depends on commercial fertilizers, large-scale irrigation, and agricultural machinery. This form of production provides enough food to support the high densities of people in metropolitan areas. A country's level of poverty can depend greatly on its mix of population density and agricultural productivity. Bangladesh, for example, has one of the world's highest population densities, with 1,147 persons per sq km. A large majority of the people of Bangladesh engage in low - productivity manual farming, which contributes to the country's extremely high level of poverty. Some of the smaller countries in Western Europe, such as the Netherlands and Belgium, have high population densities as well. These countries practise mechanized farming and are involved in high-tech industries, however, and therefore have high standards of living. At the other end of the spectrum, many countries in sub-Saharan Africa have population densities of less than 30 persons per sq km. Many people in these countries practise manual subsistence farming; these countries also have infertile land, and lack the economic resources and technology to boost productivity. As a consequence, these nations are very poor. The United Slates has both relatively low population density and high agricultural productivity; it is one of the world's wealthiest nations. High birth rates contribute to overpopulation in many developing countries. Children are assets to many poor families because the provide labour, usually for farming. Cultural norms in traditionally rural societies commonly sanction the value of large families. Also, the governments of developing countries often provide little or no support, financial or political, for family planning; even people who wish to keep their families small have difficulty doing so. For all these reasons, developing countries lend to have high rates of population growth. Question 37: The phrase "that number" in paragraph 1 refers to the number of _______.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 605 lượt xem 6 năm trước
Tổng hợp đề luyện thi Đại Học môn Tiếng Anh có lời giải(Đề số 9)

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions. “Your speech this morning was just beyond my expectation.”     “_______________”

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 13.8 K lượt xem 6 năm trước
Tổng hợp đề luyện thi Đại Học môn Tiếng Anh có lời giải(Đề số 9)

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions. He mentioned in particular electronics, his major at university. 

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 20 K lượt xem 6 năm trước
Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải (Đề số 22)

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. Overpopulation, the situation of having large numbers of people with too few resources and too little space, is closely associated with poverty. It can result from high population density, or from low amounts of resources, or from both. Excessively high population densities put stress on available resources. Only a certain number of people can be supported on a given area of land, and that number depends on how much food and other resources the land can provide. In countries where people live primarily by means of simple farming, gardening, herding, hunting, and gathering, even large areas of land can support only small numbers of people because these labour intensive subsistence activities produce only small amounts of food. In developed countries such as the United States, Japan, and the countries of Western Europe, overpopulation generally is not considered a major cause of poverty. These countries produce large quantitics of food through mechanized farming, which depends on commercial fertilizers, large-scale irrigation, and agricultural machinery. This form of production provides enough food to support the high densities of people in metropolitan areas. A country's level of poverty can depend greatly on its mix of population density and agricultural productivity. Bangladesh, for example, has one of the world's highest population densities, with 1,147 persons per sq km. A large majority of the people of Bangladesh engage in low - productivity manual farming, which contributes to the country's extremely high level of poverty. Some of the smaller countries in Western Europe, such as the Netherlands and Belgium, have high population densities as well. These countries practise mechanized farming and are involved in high-tech industries, however, and therefore have high standards of living. At the other end of the spectrum, many countries in sub-Saharan Africa have population densities of less than 30 persons per sq km. Many people in these countries practise manual subsistence farming; these countries also have infertile land, and lack the economic resources and technology to boost productivity. As a consequence, these nations are very poor. The United Slates has both relatively low population density and high agricultural productivity; it is one of the world's wealthiest nations. High birth rates contribute to overpopulation in many developing countries. Children are assets to many poor families because the provide labour, usually for farming. Cultural norms in traditionally rural societies commonly sanction the value of large families. Also, the governments of developing countries often provide little or no support, financial or political, for family planning; even people who wish to keep their families small have difficulty doing so. For all these reasons, developing countries lend to have high rates of population growth. Question 36: What will suffer when there are excessively high population densities?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 464 lượt xem 6 năm trước
50 bài toán hay và khó về este đa chức(P2)

Đốt cháy 0,16 mol hỗn hợp E chứa 2 este đều no, mạch hở và không phân nhánh, thu được CO2 và H2O có tổng khối lượng 26,56 gam. Mặt khác đun nóng 0,16 mol E với 450 ml dung dịch NaOH 1M, cô cạn dung dịch sau phản ứng thu được hỗn hợp F chứa 2 ancol kế tiếp và phần rắn có khối lượng m gam. Dẫn tòan bộ F qua bình đựng Na dư thấy thoát ra 2,24 lít khí H2 (đktc). Giá trị gần nhất của m là

Hóa học Tốt nghiệp THPT
Xem chi tiết 4.5 K lượt xem 6 năm trước
30 đề luyện thi Đại Học môn Tiếng Anh cực hay có lời giải (Đề số 4)

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. "Could you wait a second while I get dressed, Tom?" Jane said.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 445 lượt xem 6 năm trước
Tổng hợp đề luyện thi Đại Học môn Tiếng Anh có lời giải(Đề số 9)

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions. The consequences of the typhoon were disastrous due to the lack of precautionary measures.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 29 K lượt xem 6 năm trước
Tuyển tập đề thi thử Tiếng Anh cực hay có lời giải (Đề số 22)

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. Overpopulation, the situation of having large numbers of people with too few resources and too little space, is closely associated with poverty. It can result from high population density, or from low amounts of resources, or from both. Excessively high population densities put stress on available resources. Only a certain number of people can be supported on a given area of land, and that number depends on how much food and other resources the land can provide. In countries where people live primarily by means of simple farming, gardening, herding, hunting, and gathering, even large areas of land can support only small numbers of people because these labour intensive subsistence activities produce only small amounts of food. In developed countries such as the United States, Japan, and the countries of Western Europe, overpopulation generally is not considered a major cause of poverty. These countries produce large quantitics of food through mechanized farming, which depends on commercial fertilizers, large-scale irrigation, and agricultural machinery. This form of production provides enough food to support the high densities of people in metropolitan areas. A country's level of poverty can depend greatly on its mix of population density and agricultural productivity. Bangladesh, for example, has one of the world's highest population densities, with 1,147 persons per sq km. A large majority of the people of Bangladesh engage in low - productivity manual farming, which contributes to the country's extremely high level of poverty. Some of the smaller countries in Western Europe, such as the Netherlands and Belgium, have high population densities as well. These countries practise mechanized farming and are involved in high-tech industries, however, and therefore have high standards of living. At the other end of the spectrum, many countries in sub-Saharan Africa have population densities of less than 30 persons per sq km. Many people in these countries practise manual subsistence farming; these countries also have infertile land, and lack the economic resources and technology to boost productivity. As a consequence, these nations are very poor. The United Slates has both relatively low population density and high agricultural productivity; it is one of the world's wealthiest nations. High birth rates contribute to overpopulation in many developing countries. Children are assets to many poor families because the provide labour, usually for farming. Cultural norms in traditionally rural societies commonly sanction the value of large families. Also, the governments of developing countries often provide little or no support, financial or political, for family planning; even people who wish to keep their families small have difficulty doing so. For all these reasons, developing countries lend to have high rates of population growth. Question 35: Which of the following is given a definition in paragraph 1?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 650 lượt xem 6 năm trước
30 đề luyện thi Đại Học môn Tiếng Anh cực hay có lời giải (Đề số 4)

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. Ha Long Bay, the global heritage recognized twice by the UNESCO, remains one of the country's top attractions.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1 K lượt xem 6 năm trước
Tổng hợp đề luyện thi Đại Học môn Tiếng Anh có lời giải(Đề số 9)

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 medical community continues to make progress in the fight against cancer. 

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 77.1 K lượt xem 6 năm trước

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