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PHÂN DẠNG CÂU HỎI TỔNG HỢP

Chất hòa tan được Cu(OH)2 trong dung dịch NaOH ở nhiệt độ thường thu được phức chất màu tím là

Hóa học Lớp 11
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Luyện tập trang 126

Cho nửa đường tròn tâm O, đường kính AB = 2R, Ax và By là hai tiếp tuyến với nửa đường tròn tại A và B. Lấy trên tia Ax điểm M rồi vẽ tiếp tuyến MP cắt By tại N.Tính thể tích của hình do nửa hình tròn APB quay quanh AB sinh ra.

Toán Lớp 9
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BỘ ĐỀ THI THPT QUỐC GIA CHUẨN CẤU TRÚC BỘ GIÁO DỤC MÔN TIẾNG ANH (P4)

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 28 to 34FAMILY LIFE IN THE UNITED STATESFamily life in the United States is changing. Fifty or sixty years ago, the wife was called a “housewife”. She cleaned, cooked, and cared for the children. The husband earned the money for the family. He was usually out working all day. He came home tired in the evening, so he did not do much housework. And he did not see the children very much, except on weekends.These days, however, more and more women work outside the home. They cannot stay with the children all day. They, too, come home tired in the evening. They do not want to spend the evening cooking dinner and cleaning up. They do not have time to clean the house and do the laundry. So who is going to do the housework now? Who is going to take care of the children?Many families solve the problem of housework by sharing it. In these families, the husband and wife agree to do different jobs around the house, or they take turns doing each job. For example, the husband always cooks dinner and the wife always does the laundry. Or the wife cooks dinner on some nights and the husband cooks dinner on other nights.Then there is the question of the children. In the past, many families got help with child care from grandparents. Now families usually do not live near their relatives. The grandparents are often too far away to help in a regular way. More often, parents have to pay for child care help. Ihe help may be a babysitter or a day-care center. The problem with this kind of help is the high cost. It is possible only for couples with jobs that pay well.Parents may get another kind of help form the companies they work for. Many companies now let people with children work part-time. That way, parents can spend more time with their children. Some husbands may even stop working for a while to stay with the children. For these men there is a new word: they are called “househusbands”. In the USA more and more men are becoming househusbands every year.These changes in the home mean changes in the family. Fathers can learn to understand their children better, and the children can get to know their fathers better. Husbands and wives may also find changes in their marriage. They, too, may have a better understanding of each other.The changes in the American home mentioned in this passage may __________.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 588 lượt xem 6 năm trước
PHÂN DẠNG CÂU HỎI TỔNG HỢP

Cho các chất sau đây: propin, glucozơ, propyl fomat, etilen, saccarozơ, etyl axetat, vinyl axetilen, tinh bột, anđehit oxalic. Số chất có phản ứng với dung dịch AgNO3 trong NH3 đun nóng là

Hóa học Lớp 11
Xem chi tiết 4.3 K lượt xem 6 năm trước
Luyện tập trang 126

Cho nửa đường tròn tâm O, đường kính AB = 2R, Ax và By là hai tiếp tuyến với nửa đường tròn tại A và B. Lấy trên tia Ax điểm M rồi vẽ tiếp tuyến MP cắt By tại N.Tính tỉ số SMONSAPBkhi AM=R2

Toán Lớp 9
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Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 18)

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 36 to 42.          Most people think that lions only come from Africa. This is understandable because in fact most lions do come from there but this has not always been the case. If we went back ten thousand years. we would find that there were lions roaming vast sections of the globe. However no, unfortunately only a very small section of the lion’s former habitat remains.          Asiatic lions are sub-species of African lions. It is almost a hundred thousand years since the Asiatic lions split off and developed as a sub-species. At one time the Asiatic lion was living as  far west as Greece and they were found from there, but in a band that spreads east through various countries of the Middle East, all the way to India. In museums now, you can see Greek coins that have clear images of the Asiatic lion on them. Most of them are dated at around 500 B.C. However, Europe saw its last Asiatic lions roaming free to thousand years ago. Over the next nineteen hundred years the numbers of Asiatic lions in the other areas declined steadily, but it was only in the nineteenth century that they disappeared from everywhere but in India.          The Gir Wildlife Sanctuary in India was established especially to protect the Asiatic lion. There are now around three hundred Asiatic lions in India and almost all of them are in this sanctuary. However, despite living in a sanctuary, which makes them safe from hunters, they still face a number of problems that threaten their survival. One of these is the ever-present danger of disease. This is what killed more than a third of Africa’s Serengeti lions in 1994, and people are fearful  that something similar could happen in the Gir Sanctuary and kill off many of the Asiatic lions there.          India’s lions are particular vulnerable because they have a limited gene pool. The reason for this is interesting – it is because all of them are descended from a few dozen lions that were saved by a prince who took a particular interest in them. He was very healthy, and he managed to protect them otherwise they would probably have died out completely.When you see the Asiatic lion in India, what you sense is enormous vitality. They are very impressive animals and you would never guess that they this vulnerability when you look at them.According to the passage, ten thousand years ago,________.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 621 lượt xem 6 năm trước
BỘ ĐỀ THI THPT QUỐC GIA CHUẨN CẤU TRÚC BỘ GIÁO DỤC MÔN TIẾNG ANH (P4)

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 28 to 34FAMILY LIFE IN THE UNITED STATESFamily life in the United States is changing. Fifty or sixty years ago, the wife was called a “housewife”. She cleaned, cooked, and cared for the children. The husband earned the money for the family. He was usually out working all day. He came home tired in the evening, so he did not do much housework. And he did not see the children very much, except on weekends.These days, however, more and more women work outside the home. They cannot stay with the children all day. They, too, come home tired in the evening. They do not want to spend the evening cooking dinner and cleaning up. They do not have time to clean the house and do the laundry. So who is going to do the housework now? Who is going to take care of the children?Many families solve the problem of housework by sharing it. In these families, the husband and wife agree to do different jobs around the house, or they take turns doing each job. For example, the husband always cooks dinner and the wife always does the laundry. Or the wife cooks dinner on some nights and the husband cooks dinner on other nights.Then there is the question of the children. In the past, many families got help with child care from grandparents. Now families usually do not live near their relatives. The grandparents are often too far away to help in a regular way. More often, parents have to pay for child care help. Ihe help may be a babysitter or a day-care center. The problem with this kind of help is the high cost. It is possible only for couples with jobs that pay well.Parents may get another kind of help form the companies they work for. Many companies now let people with children work part-time. That way, parents can spend more time with their children. Some husbands may even stop working for a while to stay with the children. For these men there is a new word: they are called “househusbands”. In the USA more and more men are becoming househusbands every year.These changes in the home mean changes in the family. Fathers can learn to understand their children better, and the children can get to know their fathers better. Husbands and wives may also find changes in their marriage. They, too, may have a better understanding of each other.The word “they" in paragraph 5 refers to_________.

Tiếng Anh Tốt nghiệp THPT
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PHÂN DẠNG CÂU HỎI TỔNG HỢP

Cho dãy các chất: glucozơ, xenlulozơ, etyl fomat, metylamin. Số chất trong dãy có thể tham gia phản ứng tráng gương là

Hóa học Lớp 11
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BỘ ĐỀ THI THPT QUỐC GIA CHUẨN CẤU TRÚC BỘ GIÁO DỤC MÔN TIẾNG ANH (P4)

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 28 to 34FAMILY LIFE IN THE UNITED STATESFamily life in the United States is changing. Fifty or sixty years ago, the wife was called a “housewife”. She cleaned, cooked, and cared for the children. The husband earned the money for the family. He was usually out working all day. He came home tired in the evening, so he did not do much housework. And he did not see the children very much, except on weekends.These days, however, more and more women work outside the home. They cannot stay with the children all day. They, too, come home tired in the evening. They do not want to spend the evening cooking dinner and cleaning up. They do not have time to clean the house and do the laundry. So who is going to do the housework now? Who is going to take care of the children?Many families solve the problem of housework by sharing it. In these families, the husband and wife agree to do different jobs around the house, or they take turns doing each job. For example, the husband always cooks dinner and the wife always does the laundry. Or the wife cooks dinner on some nights and the husband cooks dinner on other nights.Then there is the question of the children. In the past, many families got help with child care from grandparents. Now families usually do not live near their relatives. The grandparents are often too far away to help in a regular way. More often, parents have to pay for child care help. Ihe help may be a babysitter or a day-care center. The problem with this kind of help is the high cost. It is possible only for couples with jobs that pay well.Parents may get another kind of help form the companies they work for. Many companies now let people with children work part-time. That way, parents can spend more time with their children. Some husbands may even stop working for a while to stay with the children. For these men there is a new word: they are called “househusbands”. In the USA more and more men are becoming househusbands every year.These changes in the home mean changes in the family. Fathers can learn to understand their children better, and the children can get to know their fathers better. Husbands and wives may also find changes in their marriage. They, too, may have a better understanding of each other.It can be inferred from paragraph 4 that__________.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 255 lượt xem 6 năm trước
Đề thi thử THPT QG 2019 Môn Vật Lý (Đề số 06)

Trong thí nghiệm Y- âng về giao thoa ánh sáng, các khe S1,S2 được chiếu sáng bởi nguồn sáng trắng S có bước sóng trong khoảng 0,38m 0,76m. Khoảng cách hai khe là 2mm, khoảng cách từ hai khe đến màn là 1,6m. Vùng giao nhau giữa quang phổ bậc 2 và quang phổ bậc 3 có bề rộng là

Vật lý Tốt nghiệp THPT
Xem chi tiết 1.7 K lượt xem 6 năm trước
Tuyển tập 25 đề thi thử thpt quốc gia môn Vật lý có lời giải chi tiết (P4)

Chọn công thức đúng:

Vật lý Tốt nghiệp THPT
Xem chi tiết 7.9 K lượt xem 6 năm trước
PHÂN DẠNG CÂU HỎI TỔNG HỢP

Cho các chất: HCHO, CH3COOH, CH3COOC2H5, HCOOH, C2H5OH, HCOOCH3. Số chất có khả năng tham gia phản ứng tráng bạc là

Hóa học Lớp 11
Xem chi tiết 2.3 K lượt xem 6 năm trước
BỘ ĐỀ THI THPT QUỐC GIA CHUẨN CẤU TRÚC BỘ GIÁO DỤC MÔN TIẾNG ANH (P4)

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 28 to 34FAMILY LIFE IN THE UNITED STATESFamily life in the United States is changing. Fifty or sixty years ago, the wife was called a “housewife”. She cleaned, cooked, and cared for the children. The husband earned the money for the family. He was usually out working all day. He came home tired in the evening, so he did not do much housework. And he did not see the children very much, except on weekends.These days, however, more and more women work outside the home. They cannot stay with the children all day. They, too, come home tired in the evening. They do not want to spend the evening cooking dinner and cleaning up. They do not have time to clean the house and do the laundry. So who is going to do the housework now? Who is going to take care of the children?Many families solve the problem of housework by sharing it. In these families, the husband and wife agree to do different jobs around the house, or they take turns doing each job. For example, the husband always cooks dinner and the wife always does the laundry. Or the wife cooks dinner on some nights and the husband cooks dinner on other nights.Then there is the question of the children. In the past, many families got help with child care from grandparents. Now families usually do not live near their relatives. The grandparents are often too far away to help in a regular way. More often, parents have to pay for child care help. Ihe help may be a babysitter or a day-care center. The problem with this kind of help is the high cost. It is possible only for couples with jobs that pay well.Parents may get another kind of help form the companies they work for. Many companies now let people with children work part-time. That way, parents can spend more time with their children. Some husbands may even stop working for a while to stay with the children. For these men there is a new word: they are called “househusbands”. In the USA more and more men are becoming househusbands every year.These changes in the home mean changes in the family. Fathers can learn to understand their children better, and the children can get to know their fathers better. Husbands and wives may also find changes in their marriage. They, too, may have a better understanding of each other.The word “laundry” in paragraph 2 is closest in meaning to _____________

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 364 lượt xem 6 năm trước
PHÂN DẠNG CÂU HỎI TỔNG HỢP

Cho các chất sau: axit axetic (X); axit fomic (Y); glucozơ (Z); etyl fomat (T); axit glutamic (M). Những chất tác dụng được với dung dịch AgNO3/NH3 tạo kết tủa là:

Hóa học Lớp 11
Xem chi tiết 1.4 K lượt xem 6 năm trước
BỘ ĐỀ THI THPT QUỐC GIA CHUẨN CẤU TRÚC BỘ GIÁO DỤC MÔN TIẾNG ANH (P4)

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 28 to 34FAMILY LIFE IN THE UNITED STATESFamily life in the United States is changing. Fifty or sixty years ago, the wife was called a “housewife”. She cleaned, cooked, and cared for the children. The husband earned the money for the family. He was usually out working all day. He came home tired in the evening, so he did not do much housework. And he did not see the children very much, except on weekends.These days, however, more and more women work outside the home. They cannot stay with the children all day. They, too, come home tired in the evening. They do not want to spend the evening cooking dinner and cleaning up. They do not have time to clean the house and do the laundry. So who is going to do the housework now? Who is going to take care of the children?Many families solve the problem of housework by sharing it. In these families, the husband and wife agree to do different jobs around the house, or they take turns doing each job. For example, the husband always cooks dinner and the wife always does the laundry. Or the wife cooks dinner on some nights and the husband cooks dinner on other nights.Then there is the question of the children. In the past, many families got help with child care from grandparents. Now families usually do not live near their relatives. The grandparents are often too far away to help in a regular way. More often, parents have to pay for child care help. Ihe help may be a babysitter or a day-care center. The problem with this kind of help is the high cost. It is possible only for couples with jobs that pay well.Parents may get another kind of help form the companies they work for. Many companies now let people with children work part-time. That way, parents can spend more time with their children. Some husbands may even stop working for a while to stay with the children. For these men there is a new word: they are called “househusbands”. In the USA more and more men are becoming househusbands every year.These changes in the home mean changes in the family. Fathers can learn to understand their children better, and the children can get to know their fathers better. Husbands and wives may also find changes in their marriage. They, too, may have a better understanding of each other.Nowadays, there are __________.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 520 lượt xem 6 năm trước
Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 18)

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 31 to 35.ENGLISH AROUND THE WORLD          Teaching English as a foreign language can be a great way to travel around the world and earn money at the same time. However, some graduates actually like the idea of (31)________a career in teaching English, and there are numerous courses at various (32)________, from the basic certificates to the diploma or even the master’s.          To find the right course, a good place to start is TEFL.com – an Internet site with lots of relevant information and helpful (33)________including a full list of places in the UL offering courses. The site also offers assistance to qualified graduates (34)_______finding work.          When deciding on a course, the best thing to do is to look at what your needs are. If you want a career in teaching English, then definitely find one designed for that (35)_______, such as an MA or diploma; but if you want to travel around the world, then do a shorter course that will supply you with teaching skills.Điền vào ô số 35

Tiếng Anh Tốt nghiệp THPT
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PHÂN DẠNG CÂU HỎI TỔNG HỢP

Các chất trong dãy nào sau đây đều tạo kết tủa khi cho tác dụng với dung dịch AgNO3 trong NH3 dư, đun nóng?

Hóa học Lớp 11
Xem chi tiết 570 lượt xem 6 năm trước
Đề thi thử THPT QG 2019 Môn Vật Lý (Đề số 06)

Đặt điện áp u = U0cosωt vào hai đầu đoạn mạch AB như hình vẽ, cuộn dây thuần cảm. Biết điện áp giữa hai đầu đoạn mạch AM và MB có giá trị hiệu dụng bằng nhau và cường độ dòng điện trong mạch lệch pha π/12 so với điện áp hai đầu đoạn mạch. Hệ số công suất ở hai đầu đoạn mạch AM bằng 

Vật lý Tốt nghiệp THPT
Xem chi tiết 693 lượt xem 6 năm trước
PHÂN DẠNG CÂU HỎI TỔNG HỢP

Dãy gồm các chất đều không tham gia phản ứng tráng bạc là

Hóa học Lớp 11
Xem chi tiết 4.9 K lượt xem 6 năm trước
Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 18)

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 31 to 35.ENGLISH AROUND THE WORLD          Teaching English as a foreign language can be a great way to travel around the world and earn money at the same time. However, some graduates actually like the idea of (31)________a career in teaching English, and there are numerous courses at various (32)________, from the basic certificates to the diploma or even the master’s.          To find the right course, a good place to start is TEFL.com – an Internet site with lots of relevant information and helpful (33)________including a full list of places in the UL offering courses. The site also offers assistance to qualified graduates (34)_______finding work.          When deciding on a course, the best thing to do is to look at what your needs are. If you want a career in teaching English, then definitely find one designed for that (35)_______, such as an MA or diploma; but if you want to travel around the world, then do a shorter course that will supply you with teaching skills.Điền vào ô số 34

Tiếng Anh Tốt nghiệp THPT
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PHÂN DẠNG CÂU HỎI TỔNG HỢP

Chất nào dưới đây không có khả năng tham gia phản ứng tráng gương?

Hóa học Lớp 11
Xem chi tiết 1.5 K lượt xem 6 năm trước
24 ĐỀ THI THỬ THPT QUỐC GIA NĂM 2019 Môn thi: TIẾNG ANH(P6)

Olga was about to say something about the end of the movie. He was stopped by his friends right then

Tiếng Anh Tốt nghiệp THPT
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Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 18)

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 31 to 35.ENGLISH AROUND THE WORLD          Teaching English as a foreign language can be a great way to travel around the world and earn money at the same time. However, some graduates actually like the idea of (31)________a career in teaching English, and there are numerous courses at various (32)________, from the basic certificates to the diploma or even the master’s.          To find the right course, a good place to start is TEFL.com – an Internet site with lots of relevant information and helpful (33)________including a full list of places in the UL offering courses. The site also offers assistance to qualified graduates (34)_______finding work.          When deciding on a course, the best thing to do is to look at what your needs are. If you want a career in teaching English, then definitely find one designed for that (35)_______, such as an MA or diploma; but if you want to travel around the world, then do a shorter course that will supply you with teaching skills.Điền vào ô số 33

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1 K lượt xem 6 năm trước
Luyện tập trang 126

Cho nửa đường tròn tâm O, đường kính AB = 2R, Ax và By là hai tiếp tuyến với nửa đường tròn tại A và B. Lấy trên tia Ax điểm M rồi vẽ tiếp tuyến MP cắt By tại N.Chứng minh AM.BN = R2

Toán Lớp 9
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24 ĐỀ THI THỬ THPT QUỐC GIA NĂM 2019 Môn thi: TIẾNG ANH(P6)

The boss scolded Laura for that minor mistake. He now feels really bad about it

Tiếng Anh Tốt nghiệp THPT
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PHÂN DẠNG CÂU HỎI TỔNG HỢP

Cho dãy các chất sau: stiren, phenol, ancol benzylic, phenyl acrylat. Số chất làm mất màu nước brom là 

Hóa học Lớp 11
Xem chi tiết 535 lượt xem 6 năm trước
Tuyển tập 25 đề thi thử thpt quốc gia môn Vật lý có lời giải chi tiết (P5)

Kéo một vật chuyển động một đoạn đường s, bằng một lực kéo F, hợp với đoạn đường s một góc α  . Công thức tính công cơ học của vật là:

Vật lý Tốt nghiệp THPT
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24 ĐỀ THI THỬ THPT QUỐC GIA NĂM 2019 Môn thi: TIẾNG ANH(P6)

It wasn't obligatory to submit my assignment today

Tiếng Anh Tốt nghiệp THPT
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Luyện tập trang 126

Cho nửa đường tròn tâm O, đường kính AB = 2R, Ax và By là hai tiếp tuyến với nửa đường tròn tại A và B. Lấy trên tia Ax điểm M rồi vẽ tiếp tuyến MP cắt By tại N.Chứng minh rằng MON và APB là hai tam giác vuông đồng dạng.

Toán Lớp 9
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Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 18)

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 31 to 35.ENGLISH AROUND THE WORLD          Teaching English as a foreign language can be a great way to travel around the world and earn money at the same time. However, some graduates actually like the idea of (31)________a career in teaching English, and there are numerous courses at various (32)________, from the basic certificates to the diploma or even the master’s.          To find the right course, a good place to start is TEFL.com – an Internet site with lots of relevant information and helpful (33)________including a full list of places in the UL offering courses. The site also offers assistance to qualified graduates (34)_______finding work.          When deciding on a course, the best thing to do is to look at what your needs are. If you want a career in teaching English, then definitely find one designed for that (35)_______, such as an MA or diploma; but if you want to travel around the world, then do a shorter course that will supply you with teaching skills.Điền vào ô số 32

Tiếng Anh Tốt nghiệp THPT
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PHÂN DẠNG CÂU HỎI TỔNG HỢP

Cho các chất sau: etilen, axetilen, glucozơ, axit axetic, anilin. Số chất làm mất màu nước brom ở điều kiện thường là

Hóa học Lớp 11
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24 ĐỀ THI THỬ THPT QUỐC GIA NĂM 2019 Môn thi: TIẾNG ANH(P6)

"I would be grateful if you did the work" he said to me

Tiếng Anh Tốt nghiệp THPT
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Luyện tập trang 126

Một chi tiết máy gồm một hình trụ và hai nửa hình cầu với các kích thước đã cho trên hình 111 (đơn vị: cm).Với điều kiện ở a), hãy tính diện tích bề mặt và thể tích của chi tiết máy theo x và a.Hình 111

Toán Lớp 9
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PHÂN DẠNG CÂU HỎI TỔNG HỢP

Hợp chất nào sau đây không có khả năng làm mất màu dung dịch nước brom?

Hóa học Lớp 11
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24 ĐỀ THI THỬ THPT QUỐC GIA NĂM 2019 Môn thi: TIẾNG ANH(P6)

Janet speaks English better than Daisy

Tiếng Anh Tốt nghiệp THPT
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Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 18)

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 31 to 35.ENGLISH AROUND THE WORLD          Teaching English as a foreign language can be a great way to travel around the world and earn money at the same time. However, some graduates actually like the idea of (31)________a career in teaching English, and there are numerous courses at various (32)________, from the basic certificates to the diploma or even the master’s.          To find the right course, a good place to start is TEFL.com – an Internet site with lots of relevant information and helpful (33)________including a full list of places in the UL offering courses. The site also offers assistance to qualified graduates (34)_______finding work.          When deciding on a course, the best thing to do is to look at what your needs are. If you want a career in teaching English, then definitely find one designed for that (35)_______, such as an MA or diploma; but if you want to travel around the world, then do a shorter course that will supply you with teaching skills.Điền vào ô số 31

Tiếng Anh Tốt nghiệp THPT
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PHÂN DẠNG CÂU HỎI TỔNG HỢP

Chất nào sau đây có thể làm mất màu dung dịch brom

Hóa học Lớp 11
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24 ĐỀ THI THỬ THPT QUỐC GIA NĂM 2019 Môn thi: TIẾNG ANH(P6)

At first John was quite bewildered when taking over the factory but he soon ensured himself that things would go well soon

Tiếng Anh Tốt nghiệp THPT
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PHÂN DẠNG CÂU HỎI TỔNG HỢP

Chất nào sau đây không làm mất màu dung dịch nước brom?

Hóa học Lớp 11
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Tuyển tập 25 đề thi thử thpt quốc gia môn Vật lý có lời giải chi tiết (P5)

Ở Trường Sa, để có thể xem các chương trình truyền hình phát sóng qua vệ tinh người ta dùng anten thu sóng trực tiếp từ vệ tinh, qua bộ xử lý tín hiệu rồi đưa đến màn hình. Sóng điện tử mà anten thu trực tiếp từ vệ tinh thuộc loại:

Vật lý Tốt nghiệp THPT
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24 ĐỀ THI THỬ THPT QUỐC GIA NĂM 2019 Môn thi: TIẾNG ANH(P6)

A scientific principle has a life expectancy of approximately a decade before it drastically revised or replaced by newer information

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 14.4 K lượt xem 6 năm trước
Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 18)

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.Home schooling is apparently very successful. Many people still believe in the benefits of traditional schooling

Tiếng Anh Tốt nghiệp THPT
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PHÂN DẠNG CÂU HỎI TỔNG HỢP

Để nhận biết Gly-Ala và Gly-Gly-Gly-Ala trong hai lọ riêng biệt, thuốc thử cần dùng là:

Hóa học Lớp 11
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24 ĐỀ THI THỬ THPT QUỐC GIA NĂM 2019 Môn thi: TIẾNG ANH(P6)

Playing video games may distract often students from schoolwork.

Tiếng Anh Tốt nghiệp THPT
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Để phân biệt C2H5OH, C6H5OH (phenol) và dung dịch CH3CH=O chỉ cần dùng một thuốc thử là

Hóa học Lớp 11
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24 ĐỀ THI THỬ THPT QUỐC GIA NĂM 2019 Môn thi: TIẾNG ANH(P6)

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.Nature has always provided a stimulus for inventive minds. Early flying machines clearly were an attempt to emulate the freedom of birds. Architects and engineers have often consciously modeled buildings on forms found in nature. A more recent example of the inspiration given by nature is the invention of Velcro®. The inventor of this now common fastening device noticed that small burrs attached to his dog's coat grasped the hairs by means of tiny hooks. This led him to invent a synthetic fabric whose surfaces mimic the clasping properties of this natural seedpod.Animals and plants have evolved solutions to the kinds of problems that often interest engineers and designers. Much current research in material science is concerned with actively examining the natural world, especially at the molecular level, for inspiration to develop materials with novel properties. This relatively new field of study is sometimes known as biomimetics, since it consciously attempts to mimic nature.Researchers have investigated several interesting areas. For example, they have studied how the molecular structure of antler bone contributes to its amazing toughness, how the skin structure of a worm contributes to its ability to crawl, how the sea cucumber softens its skeleton and changes shape so that it can squeeze through tiny gaps in rocks, or what gives wood its high resistance to impact. These investigations have led to several breakthroughs in the development of composite materials with remarkable properties.Predictions for future inventions that may be developed from these lines of research include so-called smart structures that design and repair themselves in a similar way to a variety of processes in the natural world. For example, engineers have envisaged bridges that would detect areas heavily stressed by vehicle movement or wind. The bridge structure would then automatically add or move material to the weak areas until the stress is reduced. The same principle might be used to repair damaged buildings. Other new materials that have been imagined are substances that would copy photosynthesis in green plants in order to create new energy sources. The potential impact of biomimetic research is so great that the twenty-first century may come to be known as the "Age of Materials." As inferred from the passage, what would be the advantage of a product that mimics photosynthesis? 

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 13.2 K lượt xem 6 năm trước
Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 18)

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. I picked up my book. I found that the cover had been torn

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 7.6 K lượt xem 1 năm trước
Tuyển tập 25 đề thi thử thpt quốc gia môn Vật lý có lời giải chi tiết (P5)

Hiệu điện thế giữa hai điểm M,N là UMN=40V . Chọn câu chắc chắn đúng?

Vật lý Tốt nghiệp THPT
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PHÂN DẠNG CÂU HỎI TỔNG HỢP

Thuốc thử dùng để phân biệt metyl acrylat và etyl axetat là

Hóa học Lớp 11
Xem chi tiết 10.4 K lượt xem 6 năm trước
24 ĐỀ THI THỬ THPT QUỐC GIA NĂM 2019 Môn thi: TIẾNG ANH(P6)

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.Nature has always provided a stimulus for inventive minds. Early flying machines clearly were an attempt to emulate the freedom of birds. Architects and engineers have often consciously modeled buildings on forms found in nature. A more recent example of the inspiration given by nature is the invention of Velcro®. The inventor of this now common fastening device noticed that small burrs attached to his dog's coat grasped the hairs by means of tiny hooks. This led him to invent a synthetic fabric whose surfaces mimic the clasping properties of this natural seedpod.Animals and plants have evolved solutions to the kinds of problems that often interest engineers and designers. Much current research in material science is concerned with actively examining the natural world, especially at the molecular level, for inspiration to develop materials with novel properties. This relatively new field of study is sometimes known as biomimetics, since it consciously attempts to mimic nature.Researchers have investigated several interesting areas. For example, they have studied how the molecular structure of antler bone contributes to its amazing toughness, how the skin structure of a worm contributes to its ability to crawl, how the sea cucumber softens its skeleton and changes shape so that it can squeeze through tiny gaps in rocks, or what gives wood its high resistance to impact. These investigations have led to several breakthroughs in the development of composite materials with remarkable properties.Predictions for future inventions that may be developed from these lines of research include so-called smart structures that design and repair themselves in a similar way to a variety of processes in the natural world. For example, engineers have envisaged bridges that would detect areas heavily stressed by vehicle movement or wind. The bridge structure would then automatically add or move material to the weak areas until the stress is reduced. The same principle might be used to repair damaged buildings. Other new materials that have been imagined are substances that would copy photosynthesis in green plants in order to create new energy sources. The potential impact of biomimetic research is so great that the twenty-first century may come to be known as the "Age of Materials." According to the passage, which of the following would NOT be a useful biomimetic product? 

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 2.2 K lượt xem 6 năm trước

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