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20 đề thi thử THPTQG môn Sinh học năm 2019 - 2020 (Đề số 7)

Cho các bước tạo động vật chuyển gen:(l) Lấy trứng ra khỏi con vật.(2) Cấy phôi đã được chuyển gen vào tử cung con vật khác để nó mang thai và sinh đẻ bình thường.(3) Cho trứng thụ tinh trong ống nghiệm.(4) Tiêm gen cần chuyển vào hợp tử và hợp tử phát triển thành phôi.Trình tự đúng trong quy trình tạo động vật chuyển gen là

Sinh học Tốt nghiệp THPT
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Đề thi thử THPTQG Sở Giáo Dục Và Đào Tạo Hà Nội môn Tiếng Anh (đề số 1)

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.The occean probably distinguishes the earth from other planets of the solar system, for scientists believe that large bodies of water are not existing on the other planets.

Tiếng Anh Tốt nghiệp THPT
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Đề thi thử THPTQG Sở Giáo Dục Và Đào Tạo Hà Nội môn Tiếng Anh (đề số 1)

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.For its establishment, ASEAN Tourism Association has played an important role in promoting and developing ASEAN Tourism services.

Tiếng Anh Tốt nghiệp THPT
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20 đề thi thử THPTQG môn Sinh học năm 2019 - 2020 (Đề số 7)

Trong một quần thể giao phối ngẫu nhiên có kích thước lớn trên một hòn đảo đại dương, không có chọn lọc, không có đột biến, tần số tương đối của các alen thuộc một gen nào đó:

Sinh học Tốt nghiệp THPT
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20 đề thi thử THPTQG môn Sinh học năm 2019 - 2020 (Đề số 7)

Nếu kích thước quần thể xuống dưới mức tối thiểu, quần thể dễ rơi vào trạng thái suy giảm dẫn tới diệt vong. Giải thích nào sau đây là không phù hợp?

Sinh học Tốt nghiệp THPT
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Đề thi thử THPTQG Sở Giáo Dục Và Đào Tạo Hà Nội môn Tiếng Anh (đề số 1)

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.Fifty minutes are the maximum length of time allotted for the exam.

Tiếng Anh Tốt nghiệp THPT
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Đề thi thử THPTQG Sở Giáo Dục Và Đào Tạo Hà Nội môn Tiếng Anh (đề số 1)

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.I thought she was the right person for the position, yet it turned put that she was quite useless.

Tiếng Anh Tốt nghiệp THPT
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Đề thi thử THPTQG Sở Giáo Dục Và Đào Tạo Hà Nội môn Tiếng Anh (đề số 1)

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.I don't find it difficult to get up early in the morning.

Tiếng Anh Tốt nghiệp THPT
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50 bài toán hay và khó về hỗn hợp chứa peptit và este (P1)

X là peptit mạch hở được tạo bởi Gly, Ala và Val. Y là este (no, đơn chức, mạch hở). Hỗn hợp E chứa X, Y với tỷ lệ mol tương ứng là 1:2. Đun nóng E trong 100 ml dung dịch NaOH vừa đủ thu được bốn muối và ancol etylic. Đốt cháy hoàn toàn E cần dùng vừa đủ 0,515 mol O2. Sản phẩm cháy thu được có chứa a mol CO2, b mol H2O và 0,03 mol N2. Giá trị của b là?

Hóa học Lớp 12
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Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 8)

Read the passages and circle the best option A, B, C, or D to complete the following questions or statementsAlexis de Tocqueville, the French political scientist, historian, philosopher and politician, is most famous for a four-volume book he wrote called “Democracy in America”. He came to America in 1831 to study the American form of democracy and what it might mean to the rest of the world. After a visit of only nine months, he wrote a remarkable book which is regarded as a classic. De Tocqueville had unusual powers of observation. He described not only the democratic system of government and how it operated, but also its effect on how Americans think, feel, and act. Many scholars believe he had a deeper understanding of traditional American beliefs and values than anyone else who has written about the United States. What is so remarkable is that many of these traits which he observed nearly 200 years ago, are still visible and meaningful today. His observations are also important because the timing of his visit, the 1830s, was before America was industrialized. This was the era of the small farmer, the small businessman, and the settling of the western frontier. It was the period of history when the traditional values of the new country were newly established. In just a generation, some 40 years since the adoption of the U.S. Constitution, the new form of government had already produced a society of people with unique values. He was, however, a neutral observer and saw both the good and bad sides of these qualities.The first part of “Democracy in America” was written in 1831-32 and published in 1835. A highly positive and optimistic account of American government and society, the book was very well received. He attempted to get a glimpse of the essence of American society, all the while promoting his own philosophy: the equaling of the classes and the inevitable depth of aristocratic privilege. The rest of the book he labored on for four years, and in 1840 the second part was published. This was substantially more pessimistic than the first, warning of the dangers despotism and governmental centralization, and applying his ideas and criticisms more directly to France. As a result, it was not received as well as the first part, except in England where it was acclaimed highly.All of the following fields of professional interest and activity are used to describe de Tocqueville EXCEPT 

Tiếng Anh Tốt nghiệp THPT
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Đề thi thử THPTQG Sở Giáo Dục Và Đào Tạo Hà Nội môn Tiếng Anh (đề số 1)

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.We couldn't solve the problem until our teacher arrived.

Tiếng Anh Tốt nghiệp THPT
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Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 8)

Read the passages and circle the best option A, B, C, or D to complete the following questions or statementsAlexis de Tocqueville, the French political scientist, historian, philosopher and politician, is most famous for a four-volume book he wrote called “Democracy in America”. He came to America in 1831 to study the American form of democracy and what it might mean to the rest of the world. After a visit of only nine months, he wrote a remarkable book which is regarded as a classic. De Tocqueville had unusual powers of observation. He described not only the democratic system of government and how it operated, but also its effect on how Americans think, feel, and act. Many scholars believe he had a deeper understanding of traditional American beliefs and values than anyone else who has written about the United States. What is so remarkable is that many of these traits which he observed nearly 200 years ago, are still visible and meaningful today. His observations are also important because the timing of his visit, the 1830s, was before America was industrialized. This was the era of the small farmer, the small businessman, and the settling of the western frontier. It was the period of history when the traditional values of the new country were newly established. In just a generation, some 40 years since the adoption of the U.S. Constitution, the new form of government had already produced a society of people with unique values. He was, however, a neutral observer and saw both the good and bad sides of these qualities.The first part of “Democracy in America” was written in 1831-32 and published in 1835. A highly positive and optimistic account of American government and society, the book was very well received. He attempted to get a glimpse of the essence of American society, all the while promoting his own philosophy: the equaling of the classes and the inevitable depth of aristocratic privilege. The rest of the book he labored on for four years, and in 1840 the second part was published. This was substantially more pessimistic than the first, warning of the dangers despotism and governmental centralization, and applying his ideas and criticisms more directly to France. As a result, it was not received as well as the first part, except in England where it was acclaimed highly.What in the passage is mentioned as being truly remarkable? 

Tiếng Anh Tốt nghiệp THPT
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Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 8)

Read the passages and circle the best option A, B, C, or D to complete the following questions or statementsAlexis de Tocqueville, the French political scientist, historian, philosopher and politician, is most famous for a four-volume book he wrote called “Democracy in America”. He came to America in 1831 to study the American form of democracy and what it might mean to the rest of the world. After a visit of only nine months, he wrote a remarkable book which is regarded as a classic. De Tocqueville had unusual powers of observation. He described not only the democratic system of government and how it operated, but also its effect on how Americans think, feel, and act. Many scholars believe he had a deeper understanding of traditional American beliefs and values than anyone else who has written about the United States. What is so remarkable is that many of these traits which he observed nearly 200 years ago, are still visible and meaningful today. His observations are also important because the timing of his visit, the 1830s, was before America was industrialized. This was the era of the small farmer, the small businessman, and the settling of the western frontier. It was the period of history when the traditional values of the new country were newly established. In just a generation, some 40 years since the adoption of the U.S. Constitution, the new form of government had already produced a society of people with unique values. He was, however, a neutral observer and saw both the good and bad sides of these qualities.The first part of “Democracy in America” was written in 1831-32 and published in 1835. A highly positive and optimistic account of American government and society, the book was very well received. He attempted to get a glimpse of the essence of American society, all the while promoting his own philosophy: the equaling of the classes and the inevitable depth of aristocratic privilege. The rest of the book he labored on for four years, and in 1840 the second part was published. This was substantially more pessimistic than the first, warning of the dangers despotism and governmental centralization, and applying his ideas and criticisms more directly to France. As a result, it was not received as well as the first part, except in England where it was acclaimed highly.Which of the following is true, according to the passage? 

Tiếng Anh Tốt nghiệp THPT
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50 bài toán hay và khó về hỗn hợp chứa peptit và este (P1)

X là peptit mạch hở được tạo bởi Gly, Ala và Val. Y là este (no, đơn chức, mạch hở). Hỗn hợp E chứa X, Y với tỷ lệ mol tương ứng là 1:2. Đun nóng E trong 100 ml dung dịch NaOH 1M vừa đủ thu được bốn muối và ancol etylic. Đốt cháy hoàn toàn E cần dùng vừa đủ 0,515 mol O2. Sản phẩm cháy thu được có chứa a mol CO2, b mol H2O và 0,03 mol N2. Giá trị của a là?

Hóa học Lớp 12
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Đề thi thử THPTQG Sở Giáo Dục Và Đào Tạo Hà Nội môn Tiếng Anh (đề số 1)

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.Transportation has been made much easier thanks to the invention of car. However, cars are the greatest contributor of air pollution.

Tiếng Anh Tốt nghiệp THPT
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Ôn luyện hóa hữu cơ 12 cực hay có lời giải (Đề số 07)

Hợp chất X mạch hở có công thức phân tử là C4H9NO2. Cho 10,3 gam X phản ứng vừa đủ với dung dịch NaOH sinh ra một chất khí Y và dung dịch Z. Khí Y nặng hơn không khí, làm giấy quỳ tím ẩm chuyển màu xanh. Dung dịch Z có khả năng làm mất màu nước brom. Cô cạn dung dịch Z thu được m gam muối khan. Giá trị của m là

Hóa học Lớp 12
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Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 8)

Read the passages and circle the best option A, B, C, or D to complete the following questions or statementsAlexis de Tocqueville, the French political scientist, historian, philosopher and politician, is most famous for a four-volume book he wrote called “Democracy in America”. He came to America in 1831 to study the American form of democracy and what it might mean to the rest of the world. After a visit of only nine months, he wrote a remarkable book which is regarded as a classic. De Tocqueville had unusual powers of observation. He described not only the democratic system of government and how it operated, but also its effect on how Americans think, feel, and act. Many scholars believe he had a deeper understanding of traditional American beliefs and values than anyone else who has written about the United States. What is so remarkable is that many of these traits which he observed nearly 200 years ago, are still visible and meaningful today. His observations are also important because the timing of his visit, the 1830s, was before America was industrialized. This was the era of the small farmer, the small businessman, and the settling of the western frontier. It was the period of history when the traditional values of the new country were newly established. In just a generation, some 40 years since the adoption of the U.S. Constitution, the new form of government had already produced a society of people with unique values. He was, however, a neutral observer and saw both the good and bad sides of these qualities.The first part of “Democracy in America” was written in 1831-32 and published in 1835. A highly positive and optimistic account of American government and society, the book was very well received. He attempted to get a glimpse of the essence of American society, all the while promoting his own philosophy: the equaling of the classes and the inevitable depth of aristocratic privilege. The rest of the book he labored on for four years, and in 1840 the second part was published. This was substantially more pessimistic than the first, warning of the dangers despotism and governmental centralization, and applying his ideas and criticisms more directly to France. As a result, it was not received as well as the first part, except in England where it was acclaimed highly.According to the passage, “Democracy in America” consisted of how many volumes? 

Tiếng Anh Tốt nghiệp THPT
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Ôn luyện hóa hữu cơ 12 cực hay có lời giải (Đề số 07)

Cho sơ đồ phản ứng :EsteX(C4HnO2)→NaOH,toY→AgNO3,toZ→NaOH,toC2H3O2NaCông thức cấu tạo của X thỏa mãn sơ đồ đã cho là

Hóa học Lớp 12
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Đề thi thử THPTQG Sở Giáo Dục Và Đào Tạo Hà Nội môn Tiếng Anh (đề số 1)

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.Our products are environmentally- friendly. We package all of them in recyclable materials.

Tiếng Anh Tốt nghiệp THPT
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Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 8)

Read the passages and circle the best option A, B, C, or D to complete the following questions or statementsAlexis de Tocqueville, the French political scientist, historian, philosopher and politician, is most famous for a four-volume book he wrote called “Democracy in America”. He came to America in 1831 to study the American form of democracy and what it might mean to the rest of the world. After a visit of only nine months, he wrote a remarkable book which is regarded as a classic. De Tocqueville had unusual powers of observation. He described not only the democratic system of government and how it operated, but also its effect on how Americans think, feel, and act. Many scholars believe he had a deeper understanding of traditional American beliefs and values than anyone else who has written about the United States. What is so remarkable is that many of these traits which he observed nearly 200 years ago, are still visible and meaningful today. His observations are also important because the timing of his visit, the 1830s, was before America was industrialized. This was the era of the small farmer, the small businessman, and the settling of the western frontier. It was the period of history when the traditional values of the new country were newly established. In just a generation, some 40 years since the adoption of the U.S. Constitution, the new form of government had already produced a society of people with unique values. He was, however, a neutral observer and saw both the good and bad sides of these qualities.The first part of “Democracy in America” was written in 1831-32 and published in 1835. A highly positive and optimistic account of American government and society, the book was very well received. He attempted to get a glimpse of the essence of American society, all the while promoting his own philosophy: the equaling of the classes and the inevitable depth of aristocratic privilege. The rest of the book he labored on for four years, and in 1840 the second part was published. This was substantially more pessimistic than the first, warning of the dangers despotism and governmental centralization, and applying his ideas and criticisms more directly to France. As a result, it was not received as well as the first part, except in England where it was acclaimed highly.Which of the following can be inferred from the passage?

Tiếng Anh Tốt nghiệp THPT
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Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 8)

Read the passages and circle the best option A, B, C, or D to complete the following questions or statementsAlexis de Tocqueville, the French political scientist, historian, philosopher and politician, is most famous for a four-volume book he wrote called “Democracy in America”. He came to America in 1831 to study the American form of democracy and what it might mean to the rest of the world. After a visit of only nine months, he wrote a remarkable book which is regarded as a classic. De Tocqueville had unusual powers of observation. He described not only the democratic system of government and how it operated, but also its effect on how Americans think, feel, and act. Many scholars believe he had a deeper understanding of traditional American beliefs and values than anyone else who has written about the United States. What is so remarkable is that many of these traits which he observed nearly 200 years ago, are still visible and meaningful today. His observations are also important because the timing of his visit, the 1830s, was before America was industrialized. This was the era of the small farmer, the small businessman, and the settling of the western frontier. It was the period of history when the traditional values of the new country were newly established. In just a generation, some 40 years since the adoption of the U.S. Constitution, the new form of government had already produced a society of people with unique values. He was, however, a neutral observer and saw both the good and bad sides of these qualities.The first part of “Democracy in America” was written in 1831-32 and published in 1835. A highly positive and optimistic account of American government and society, the book was very well received. He attempted to get a glimpse of the essence of American society, all the while promoting his own philosophy: the equaling of the classes and the inevitable depth of aristocratic privilege. The rest of the book he labored on for four years, and in 1840 the second part was published. This was substantially more pessimistic than the first, warning of the dangers despotism and governmental centralization, and applying his ideas and criticisms more directly to France. As a result, it was not received as well as the first part, except in England where it was acclaimed highly.According to the passage, when did de Tocqueville visit America? 

Tiếng Anh Tốt nghiệp THPT
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50 bài toán hay và khó về hỗn hợp chứa peptit và este (P1)

E là peptit mạch hở được tạo bởi Gly, Ala và Val. Người ta lấy 0,03 mol E trộn với một lượng este Y (no, đơn chức, mạch hở) thu được 20,52 gam hỗn hợp T. Đốt cháy hoàn toàn T cần dùng vừa đủ 1,225 mol O2. Sản phẩm cháy thu được có chứa a mol CO2, b mol H2O và 0,09 mol N2. Giá trị của b là?

Hóa học Lớp 12
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Đề thi thử THPTQG Sở Giáo Dục Và Đào Tạo Hà Nội môn Tiếng Anh (đề số 1)

Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of the primary stress in each of the following questions.

Tiếng Anh Tốt nghiệp THPT
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Ôn luyện hóa hữu cơ 12 cực hay có lời giải (Đề số 07)

Hai este A và B là đồng phân của nhau và đều do axit cacboxylic no, đơn chức và ancol no đơn chức tạo thành. Để xà phòng hóa hoàn toàn 33,3 gam hỗn hợp hai este trên cần vừa đủ 450 ml dung dịch NaOH 1M. Tên gọi của 2 este đó là

Hóa học Lớp 12
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Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 8)

Read the passages and circle the best option A, B, C, or D to complete the following questions or statementsAlexis de Tocqueville, the French political scientist, historian, philosopher and politician, is most famous for a four-volume book he wrote called “Democracy in America”. He came to America in 1831 to study the American form of democracy and what it might mean to the rest of the world. After a visit of only nine months, he wrote a remarkable book which is regarded as a classic. De Tocqueville had unusual powers of observation. He described not only the democratic system of government and how it operated, but also its effect on how Americans think, feel, and act. Many scholars believe he had a deeper understanding of traditional American beliefs and values than anyone else who has written about the United States. What is so remarkable is that many of these traits which he observed nearly 200 years ago, are still visible and meaningful today. His observations are also important because the timing of his visit, the 1830s, was before America was industrialized. This was the era of the small farmer, the small businessman, and the settling of the western frontier. It was the period of history when the traditional values of the new country were newly established. In just a generation, some 40 years since the adoption of the U.S. Constitution, the new form of government had already produced a society of people with unique values. He was, however, a neutral observer and saw both the good and bad sides of these qualities.The first part of “Democracy in America” was written in 1831-32 and published in 1835. A highly positive and optimistic account of American government and society, the book was very well received. He attempted to get a glimpse of the essence of American society, all the while promoting his own philosophy: the equaling of the classes and the inevitable depth of aristocratic privilege. The rest of the book he labored on for four years, and in 1840 the second part was published. This was substantially more pessimistic than the first, warning of the dangers despotism and governmental centralization, and applying his ideas and criticisms more directly to France. As a result, it was not received as well as the first part, except in England where it was acclaimed highly.The word “unique” in the passage is closest in meaning to 

Tiếng Anh Tốt nghiệp THPT
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Ôn luyện hóa hữu cơ 12 cực hay có lời giải (Đề số 07)

Cho các phát biểu sau:(1) Với công thức phân tử C2HxOy (M < 62; x, y > 0) có 4 hợp chất hữu cơ mạch hở có thể phản ứng với AgNO3/NH3.(2) Có 4 hiđrocacbon mạch hở (số cacbon nhỏ hơn 4) làm mất màu dung dịch Br2/CCl4.(3) Có 5 chất có công thức cấu tạo khác nhau và M = 90u (mạch hở, không phân nhánh, chứa C, H, O, chỉ chứa nhóm chức có H linh động) hòa tan được Cu(OH)2 và khi tác dụng với Na dư được số mol H2 bằng số mol chất đó.(4) Tinh bột và xenlulozơ là đồng phân của nhau.(5) Tơ axetat và tơ visco thuộc loại tơ bán tổng hợp.(6) Lysin, axit glutamic, axit lactic, phenylamin, benzylamin đều làm đổi màu quỳ tím.Số phát biểu đúng là

Hóa học Lớp 12
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Đề thi thử THPTQG Sở Giáo Dục Và Đào Tạo Hà Nội môn Tiếng Anh (đề số 1)

Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of the primary stress in each of the following questions.

Tiếng Anh Tốt nghiệp THPT
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Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 8)

Read the passages and circle the best option A, B, C, or D to complete the following questions or statementsAlexis de Tocqueville, the French political scientist, historian, philosopher and politician, is most famous for a four-volume book he wrote called “Democracy in America”. He came to America in 1831 to study the American form of democracy and what it might mean to the rest of the world. After a visit of only nine months, he wrote a remarkable book which is regarded as a classic. De Tocqueville had unusual powers of observation. He described not only the democratic system of government and how it operated, but also its effect on how Americans think, feel, and act. Many scholars believe he had a deeper understanding of traditional American beliefs and values than anyone else who has written about the United States. What is so remarkable is that many of these traits which he observed nearly 200 years ago, are still visible and meaningful today. His observations are also important because the timing of his visit, the 1830s, was before America was industrialized. This was the era of the small farmer, the small businessman, and the settling of the western frontier. It was the period of history when the traditional values of the new country were newly established. In just a generation, some 40 years since the adoption of the U.S. Constitution, the new form of government had already produced a society of people with unique values. He was, however, a neutral observer and saw both the good and bad sides of these qualities.The first part of “Democracy in America” was written in 1831-32 and published in 1835. A highly positive and optimistic account of American government and society, the book was very well received. He attempted to get a glimpse of the essence of American society, all the while promoting his own philosophy: the equaling of the classes and the inevitable depth of aristocratic privilege. The rest of the book he labored on for four years, and in 1840 the second part was published. This was substantially more pessimistic than the first, warning of the dangers despotism and governmental centralization, and applying his ideas and criticisms more directly to France. As a result, it was not received as well as the first part, except in England where it was acclaimed highly.What is the passage primarily about? 

Tiếng Anh Tốt nghiệp THPT
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50 bài toán hay và khó về hỗn hợp chứa peptit và este (P1)

E là peptit mạch hở được tạo bởi Gly, Ala và Val. Người ta lấy 0,03 mol E trộn với một lượng este Y (no, đơn chức, mạch hở) thu được 20,52 gam hỗn hợp T. Đốt cháy hoàn toàn T cần dùng vừa đủ 1,225 mol O2. Sản phẩm cháy thu được có chứa a mol CO2, b mol H2O và 0,09 mol N2. Giá trị của a là?

Hóa học Lớp 12
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Ôn luyện hóa hữu cơ 12 cực hay có lời giải (Đề số 07)

Đốt cháy m gam este etyl axetat, hấp thụ hết sản phẩm vào 200 gam dung dịch Ba(OH)2 6,84% sau đó lọc được 194,38 gam dung dịch Ba(HCO3)2. Giá trị của m là

Hóa học Lớp 12
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Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 8)

Read the passages and circle the best option A, B, C, or D to complete the following questions or statementsAlexis de Tocqueville, the French political scientist, historian, philosopher and politician, is most famous for a four-volume book he wrote called “Democracy in America”. He came to America in 1831 to study the American form of democracy and what it might mean to the rest of the world. After a visit of only nine months, he wrote a remarkable book which is regarded as a classic. De Tocqueville had unusual powers of observation. He described not only the democratic system of government and how it operated, but also its effect on how Americans think, feel, and act. Many scholars believe he had a deeper understanding of traditional American beliefs and values than anyone else who has written about the United States. What is so remarkable is that many of these traits which he observed nearly 200 years ago, are still visible and meaningful today. His observations are also important because the timing of his visit, the 1830s, was before America was industrialized. This was the era of the small farmer, the small businessman, and the settling of the western frontier. It was the period of history when the traditional values of the new country were newly established. In just a generation, some 40 years since the adoption of the U.S. Constitution, the new form of government had already produced a society of people with unique values. He was, however, a neutral observer and saw both the good and bad sides of these qualities.The first part of “Democracy in America” was written in 1831-32 and published in 1835. A highly positive and optimistic account of American government and society, the book was very well received. He attempted to get a glimpse of the essence of American society, all the while promoting his own philosophy: the equaling of the classes and the inevitable depth of aristocratic privilege. The rest of the book he labored on for four years, and in 1840 the second part was published. This was substantially more pessimistic than the first, warning of the dangers despotism and governmental centralization, and applying his ideas and criticisms more directly to France. As a result, it was not received as well as the first part, except in England where it was acclaimed highly.The phrase “these traits” refers to 

Tiếng Anh Tốt nghiệp THPT
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Ôn luyện hóa hữu cơ 12 cực hay có lời giải (Đề số 07)

Công thức tổng quát của este sinh bởi axit đơn chức no, mạch hở và ancol  thuộc dãy đồng đẳng của ancol benzylic là

Hóa học Lớp 12
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Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 8)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanksParents whose children show a special interest in a particular sport have a difficult decision to (47)______ about their children‟s career. Should they allow their children to train to become top sportsmen and women? For many children it (48) ______starting very young and school work, going out with friends and other (49) ______ have to take second place. It‟s very difficult to explain to a young child why he or she has to train for five hours a day, even at the weekend, when (50) _______ of his or her friends are playing.Another problem is of course money. In many countries money for training is (51) ______ from the government for the very best young sportsmen and women. If this help cannot be given, it means that it is the parents (52) ______ have to find the time and the money to support their child‟s development- and sports clothes, transport to competitions, special equipment etc. can all be very expensive.Many parents are understandably (53) _______ that it is dangerous to start serious training in a sport at an early age. Some doctors agree that young (54) _______ may be damaged by training before they are properly developed. Professional trainers, however, believe that it is only by starting young that you can reach the top as a successful sports person. What is clear is that very (55) _______ people reach the top and both parents and children should be prepared for failure even after many years of training.Điền vào ô 55

Tiếng Anh Tốt nghiệp THPT
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Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 8)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanksParents whose children show a special interest in a particular sport have a difficult decision to (47)______ about their children‟s career. Should they allow their children to train to become top sportsmen and women? For many children it (48) ______starting very young and school work, going out with friends and other (49) ______ have to take second place. It‟s very difficult to explain to a young child why he or she has to train for five hours a day, even at the weekend, when (50) _______ of his or her friends are playing.Another problem is of course money. In many countries money for training is (51) ______ from the government for the very best young sportsmen and women. If this help cannot be given, it means that it is the parents (52) ______ have to find the time and the money to support their child‟s development- and sports clothes, transport to competitions, special equipment etc. can all be very expensive.Many parents are understandably (53) _______ that it is dangerous to start serious training in a sport at an early age. Some doctors agree that young (54) _______ may be damaged by training before they are properly developed. Professional trainers, however, believe that it is only by starting young that you can reach the top as a successful sports person. What is clear is that very (55) _______ people reach the top and both parents and children should be prepared for failure even after many years of training.Điền vào ô 54

Tiếng Anh Tốt nghiệp THPT
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Ôn luyện hóa hữu cơ 12 cực hay có lời giải (Đề số 07)

Ứng với công thức phân tử C2H7O2N có bao nhiêu chất vừa phản ứng được với dung dịch NaOH vừa phản ứng được với dung dịch HCl 

Hóa học Lớp 12
Xem chi tiết 341 lượt xem 5 năm trước
Ôn luyện hóa hữu cơ 12 cực hay có lời giải (Đề số 07)

Hợp chất hữu cơ X có công thức phân tử C6H10O2, cho 9,12 gam X tác dụng với dung dịch NaOH vừa đủ thu được dung dịch Y, cho dung dịch Y tác dụng với dung dịch AgNO3 dư trong NH3 đun nóng thu được 34,56 gam Ag. Số đồng phân cấu tạo của X là

Hóa học Lớp 12
Xem chi tiết 359 lượt xem 5 năm trước
Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 8)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanksParents whose children show a special interest in a particular sport have a difficult decision to (47)______ about their children‟s career. Should they allow their children to train to become top sportsmen and women? For many children it (48) ______starting very young and school work, going out with friends and other (49) ______ have to take second place. It‟s very difficult to explain to a young child why he or she has to train for five hours a day, even at the weekend, when (50) _______ of his or her friends are playing.Another problem is of course money. In many countries money for training is (51) ______ from the government for the very best young sportsmen and women. If this help cannot be given, it means that it is the parents (52) ______ have to find the time and the money to support their child‟s development- and sports clothes, transport to competitions, special equipment etc. can all be very expensive.Many parents are understandably (53) _______ that it is dangerous to start serious training in a sport at an early age. Some doctors agree that young (54) _______ may be damaged by training before they are properly developed. Professional trainers, however, believe that it is only by starting young that you can reach the top as a successful sports person. What is clear is that very (55) _______ people reach the top and both parents and children should be prepared for failure even after many years of training.Điền vào ô 53

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 349 lượt xem 5 năm trước
Ôn luyện hóa hữu cơ 12 cực hay có lời giải (Đề số 07)

Hỗn hợp X gồm hai amino axit no, mạch hở Y và Z, có cùng số nguyên tử cacbon và đều có một nhóm -NH2 trong phân tử (số mol của Y lớn hơn số mol của Z). Cho 52,8 gam X vào dung dịch NaOH dư, thu được 66 gam muối. Nếu cho 52,8 gam X vào dung dịch HCl dư thì thu được 67,4 gam muối. Phần trăm khối lượng của Z trong hỗn hợp X là

Hóa học Lớp 12
Xem chi tiết 630 lượt xem 5 năm trước
Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 8)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanksParents whose children show a special interest in a particular sport have a difficult decision to (47)______ about their children‟s career. Should they allow their children to train to become top sportsmen and women? For many children it (48) ______starting very young and school work, going out with friends and other (49) ______ have to take second place. It‟s very difficult to explain to a young child why he or she has to train for five hours a day, even at the weekend, when (50) _______ of his or her friends are playing.Another problem is of course money. In many countries money for training is (51) ______ from the government for the very best young sportsmen and women. If this help cannot be given, it means that it is the parents (52) ______ have to find the time and the money to support their child‟s development- and sports clothes, transport to competitions, special equipment etc. can all be very expensive.Many parents are understandably (53) _______ that it is dangerous to start serious training in a sport at an early age. Some doctors agree that young (54) _______ may be damaged by training before they are properly developed. Professional trainers, however, believe that it is only by starting young that you can reach the top as a successful sports person. What is clear is that very (55) _______ people reach the top and both parents and children should be prepared for failure even after many years of training.Điền vào ô 52

Tiếng Anh Tốt nghiệp THPT
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Ôn luyện hóa hữu cơ 12 cực hay có lời giải (Đề số 07)

Có bao nhiêu amin bậc ba là đồng phân cấu tạo của nhau ứng với công thức phân tử C5H13N

Hóa học Lớp 12
Xem chi tiết 1 K lượt xem 5 năm trước
Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 8)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanksParents whose children show a special interest in a particular sport have a difficult decision to (47)______ about their children‟s career. Should they allow their children to train to become top sportsmen and women? For many children it (48) ______starting very young and school work, going out with friends and other (49) ______ have to take second place. It‟s very difficult to explain to a young child why he or she has to train for five hours a day, even at the weekend, when (50) _______ of his or her friends are playing.Another problem is of course money. In many countries money for training is (51) ______ from the government for the very best young sportsmen and women. If this help cannot be given, it means that it is the parents (52) ______ have to find the time and the money to support their child‟s development- and sports clothes, transport to competitions, special equipment etc. can all be very expensive.Many parents are understandably (53) _______ that it is dangerous to start serious training in a sport at an early age. Some doctors agree that young (54) _______ may be damaged by training before they are properly developed. Professional trainers, however, believe that it is only by starting young that you can reach the top as a successful sports person. What is clear is that very (55) _______ people reach the top and both parents and children should be prepared for failure even after many years of training.Điền vào ô 51

Tiếng Anh Tốt nghiệp THPT
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Ôn luyện hóa hữu cơ 12 cực hay có lời giải (Đề số 07)

Đốt cháy hoàn toàn 43,1 gam hỗn hợp X gồm axit axetic, glyxin, alanin và axit glutamic thu được 31,36 lít CO2 (đktc) và 26,1 gam H2O. Mặt khác, 43,1 gam hỗn hợp X tác dụng vừa đủ với 300 ml dung dịch HCl 1M. Nếu cho 21,55 gam hỗn hợp X tác dụng với 350 ml dung dịch NaOH 1M thu được dung dịch Y. Cô cạn dung dịch Y thì thu được m gam chất rắn khan. Biết các phản ứng xảy ra hoàn toàn. Giá trị của m là

Hóa học Lớp 12
Xem chi tiết 7.4 K lượt xem 5 năm trước
Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 8)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanksParents whose children show a special interest in a particular sport have a difficult decision to (47)______ about their children‟s career. Should they allow their children to train to become top sportsmen and women? For many children it (48) ______starting very young and school work, going out with friends and other (49) ______ have to take second place. It‟s very difficult to explain to a young child why he or she has to train for five hours a day, even at the weekend, when (50) _______ of his or her friends are playing.Another problem is of course money. In many countries money for training is (51) ______ from the government for the very best young sportsmen and women. If this help cannot be given, it means that it is the parents (52) ______ have to find the time and the money to support their child‟s development- and sports clothes, transport to competitions, special equipment etc. can all be very expensive.Many parents are understandably (53) _______ that it is dangerous to start serious training in a sport at an early age. Some doctors agree that young (54) _______ may be damaged by training before they are properly developed. Professional trainers, however, believe that it is only by starting young that you can reach the top as a successful sports person. What is clear is that very (55) _______ people reach the top and both parents and children should be prepared for failure even after many years of training.Điền vào ô 50

Tiếng Anh Tốt nghiệp THPT
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Ôn luyện hóa hữu cơ 12 cực hay có lời giải (Đề số 07)

Thủy phân hoàn toàn 1 mol pentapeptit X, thu được 2 mol glyxin (Gly), 1 mol alanin (Ala), 1 mol valin (Val) và 1 mol Phenylalanin (Phe). Thủy phân không hoàn toàn X thu được đipeptit Val-Phe và tripeptit Gly-Ala-Val nhưng không thu được đipeptit Gly-Gly. Chất X có công thức là

Hóa học Lớp 12
Xem chi tiết 758 lượt xem 5 năm trước
Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 8)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanksParents whose children show a special interest in a particular sport have a difficult decision to (47)______ about their children‟s career. Should they allow their children to train to become top sportsmen and women? For many children it (48) ______starting very young and school work, going out with friends and other (49) ______ have to take second place. It‟s very difficult to explain to a young child why he or she has to train for five hours a day, even at the weekend, when (50) _______ of his or her friends are playing.Another problem is of course money. In many countries money for training is (51) ______ from the government for the very best young sportsmen and women. If this help cannot be given, it means that it is the parents (52) ______ have to find the time and the money to support their child‟s development- and sports clothes, transport to competitions, special equipment etc. can all be very expensive.Many parents are understandably (53) _______ that it is dangerous to start serious training in a sport at an early age. Some doctors agree that young (54) _______ may be damaged by training before they are properly developed. Professional trainers, however, believe that it is only by starting young that you can reach the top as a successful sports person. What is clear is that very (55) _______ people reach the top and both parents and children should be prepared for failure even after many years of training.Điền vào ô 49

Tiếng Anh Tốt nghiệp THPT
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Ôn luyện hóa hữu cơ 12 cực hay có lời giải (Đề số 07)

Nhận xét nào sau đây không đúng

Hóa học Lớp 12
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Ôn luyện hóa hữu cơ 12 cực hay có lời giải (Đề số 07)

Ba chất hữu cơ X, Y, Z (50 < MX < MY < MZ) đều có thành phần nguyên tố C, H, O. Hỗn hợp T gồm X, Y, Z, trong đó nX=4(nY+nZ). Đốt cháy hoàn toàn m gam T, thu được 13,2 gam CO2. Mặt khác, m gam T phản ứng vừa đủ với 0,4 lít dung dịch KHCO3 0,1M. Cho m gam T phản ứng hoàn toàn với lượng dư dung dịch AgNO3 trong NH3, thu được 56,16 gam Ag. Phần trăm khối lượng của Y trong hỗn hợp T là

Hóa học Lớp 12
Xem chi tiết 293 lượt xem 5 năm trước
Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 8)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanksParents whose children show a special interest in a particular sport have a difficult decision to (47)______ about their children‟s career. Should they allow their children to train to become top sportsmen and women? For many children it (48) ______starting very young and school work, going out with friends and other (49) ______ have to take second place. It‟s very difficult to explain to a young child why he or she has to train for five hours a day, even at the weekend, when (50) _______ of his or her friends are playing.Another problem is of course money. In many countries money for training is (51) ______ from the government for the very best young sportsmen and women. If this help cannot be given, it means that it is the parents (52) ______ have to find the time and the money to support their child‟s development- and sports clothes, transport to competitions, special equipment etc. can all be very expensive.Many parents are understandably (53) _______ that it is dangerous to start serious training in a sport at an early age. Some doctors agree that young (54) _______ may be damaged by training before they are properly developed. Professional trainers, however, believe that it is only by starting young that you can reach the top as a successful sports person. What is clear is that very (55) _______ people reach the top and both parents and children should be prepared for failure even after many years of training.Điền vào ô 48

Tiếng Anh Tốt nghiệp THPT
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Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 8)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word for each of the blanksParents whose children show a special interest in a particular sport have a difficult decision to (47)______ about their children‟s career. Should they allow their children to train to become top sportsmen and women? For many children it (48) ______starting very young and school work, going out with friends and other (49) ______ have to take second place. It‟s very difficult to explain to a young child why he or she has to train for five hours a day, even at the weekend, when (50) _______ of his or her friends are playing.Another problem is of course money. In many countries money for training is (51) ______ from the government for the very best young sportsmen and women. If this help cannot be given, it means that it is the parents (52) ______ have to find the time and the money to support their child‟s development- and sports clothes, transport to competitions, special equipment etc. can all be very expensive.Many parents are understandably (53) _______ that it is dangerous to start serious training in a sport at an early age. Some doctors agree that young (54) _______ may be damaged by training before they are properly developed. Professional trainers, however, believe that it is only by starting young that you can reach the top as a successful sports person. What is clear is that very (55) _______ people reach the top and both parents and children should be prepared for failure even after many years of training.Điền vào ô 47

Tiếng Anh Tốt nghiệp THPT
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Ôn luyện hóa hữu cơ 12 cực hay có lời giải (Đề số 07)

Phần trăm khối lượng nitơ trong phân tử alanin bằng

Hóa học Lớp 12
Xem chi tiết 4 K lượt xem 5 năm trước
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