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Tuyển tập 25 đề thi thử thpt quốc gia môn Vật lý có lời giải chi tiết (P4)

Một mạch dao động gồm một tụ điện có điện dung C= 10μF  và một cuộn dây thuần cảm có độ tự cảm L=0,1H. Khi hiệu điện thế ở hai đầu tụ điện là 4V thì cường độ dòng điện trong mạch là 0,02A. Hiệu điện thế cực đại giữa hai bản tụ điện là:

Vật lý Tốt nghiệp THPT
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BỘ ĐỀ THI THPT QUỐC GIA CHUẨN CẤU TRÚC BỘ GIÁO DỤC MÔN TIẾNG ANH (P6)

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.Mary doesn’t like sports. Her brother doesn’t, either

Tiếng Anh Tốt nghiệp THPT
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Bài 20: Lực từ. Cảm ứng từ

Thanh dây dẫn thẳng MN có chiều dài l = 20 cm, khốí lượng m = 10 g, được treo trên hai sợi dây mảnh sao cho MN nằm ngang. Cả hệ thống được đặt trong từ trường đều có cảm ứng từ B = 0,25 T và vectơ B hướng lên trên theo phương thẳng đứng. Nếu cho dòng điện I = 23  A chạy qua, người ta thấy thanh MN được nâng lên vị trí cân bằng mới và hai sợi dây treo bây giờ lệch một góc α so với phương thẳng đứng. Cho g=10m/s2, góc lệch α là

Vật lý Lớp 11
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BỘ ĐỀ THI THPT QUỐC GIA CHUẨN CẤU TRÚC BỘ GIÁO DỤC MÔN TIẾNG ANH (P6)

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.The old man is working in this factory. I borrowed his bicycle yesterday.

Tiếng Anh Tốt nghiệp THPT
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20 Bộ đề Chinh phục điểm 9-10 môn Sinh Học cực hay có lời giải (Đề số 27)

Khi nói về gen trên nhiễm sắc thể giới tính của người, cho các kết luận sau :          (1) Chỉ có tế bào sinh dục mới có nhiễm sắc thể giới tính.          (2) Trên nhiễm sắc thể giới tính chỉ có các gen quy định giới tính của cơ thể.          (3) Gen nằm trên đoạn không tương đồng của nhiễm sắc thể Y thường tồn tại theo cặp alen.          (4) Ở giới XY, gen nằm trên đoạn không tương đồng của nhiễm sắc thể X và Y không tồn tại theo cặp alen.          (5) Gen nằm trên đoạn tương đồng của nhiễm sắc thể X và Y luôn tồn tại theo cặp alen.          (6) Đoạn không tương đồng của nhiễm sắc thể giới tính X có ít gen hơn đoạn không tương đồng của NST giới tính Y.Số kết luận đúng là:

Sinh học Tốt nghiệp THPT
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BỘ ĐỀ THI THPT QUỐC GIA CHUẨN CẤU TRÚC BỘ GIÁO DỤC MÔN TIẾNG ANH (P6)

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.Higher education is very (A) importance to national (B) economies and it is also a source of trained and (C) educated personnel for (D) the whole country.

Tiếng Anh Tốt nghiệp THPT
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20 Bộ đề Chinh phục điểm 9-10 môn Sinh Học cực hay có lời giải (Đề số 27)

Cho các ví dụ minh họa sau :          (1) Các con ốc bươu vàng trong một ruộng lúa.          (2) Các con cá sống trong cùng một ao.          (3) Tập hợp các cây thông trong một rừng thông ở Đà Lạt.          (4) Tập hợp các cây cỏ trên một đồng cỏ.          (5) Tập hợp những con ong cùng sống trong một khu rừng nguyên sinh.          (6) Các con chuột trong vườn nhà.Có bao nhiêu ví dụ không minh họa cho quần thể sinh vật?

Sinh học Tốt nghiệp THPT
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BỘ ĐỀ THI THPT QUỐC GIA CHUẨN CẤU TRÚC BỘ GIÁO DỤC MÔN TIẾNG ANH (P6)

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.She asked (A) why (B) did Mark look (C) so embarrassed when he (D) saw Carole.

Tiếng Anh Tốt nghiệp THPT
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30 đề thi thử thpt quốc gia tiếng anh năm 2020 cực hay có lời giải (Đề số 29)

Read the following passage and mark the letter A, B,C or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50Clara Barton became known as “ The Angel of the Battlefield” during the American Civil War. Born in Oxford, Massachusetts in 1821, Clara Barton’s interest in helping soldiers on the battlefield began when she was told army stories from her father. Another event that influenced her decision to help soldiers was an accident her brother had. His injuries were cared for by Barton for 2 year. At the time, she was only 11 years old. Barton began teaching school at the age of 15. She taught for 18 years before she moved to Washington, D.C in 1854.The civil war broke out 6 years later. Immediately, Barton started war service by helping the soldiers with their needs. At the battle of Bull run, Clara Barton received permission from the government to take care of the sick and hurt. Barton did this with great empathy and kindness. She acknowledged each soldier as a person . her endurance and courage on the battlefield were admired by many. When the war ended in 1865 , she used 4 years of her life to assist the government in searching for soldiers who were missing during the war.The search for missing soldiers and years of hard work made her feeble physically. In 1869, her doctors recommended a trip to Europe for a rest. While she was on vacation , she became involved with the International Red Cross, an organization set up by the Geneva Convention in 1864. Clara Barton realized that the Red Cross would be a best help to the United States. After she returned to the United States, she worked very hard to create an American Red Cross. She talked to government leaders and let American people know about the Red Cross. In 1881, the National Society of the Red Cross was finally established with its headquarters in Washington , D.C. Clara Barton managed its activities for 23 years.Barton never let her age stop her from helping people. At the age of 79, she helped food victims in Galveston, Texas. Barton finally resigned from the Red Cross in 1904. She was 92 years old and had truly earned her title “ The Angel of the Battle”.Question:What can be the best title of the reading passage?

Tiếng Anh Tốt nghiệp THPT
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BỘ ĐỀ THI THPT QUỐC GIA CHUẨN CẤU TRÚC BỘ GIÁO DỤC MÔN TIẾNG ANH (P6)

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 (A) basic elements of public-opinion research (B) are interviewers, questionnaires, (C) tabulating equipment, and (D) to sample population.

Tiếng Anh Tốt nghiệp THPT
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20 Bộ đề Chinh phục điểm 9-10 môn Sinh Học cực hay có lời giải (Đề số 27)

Đặc điểm không phải của cá thể tạo ra do nhân bản vô tính bằng kỹ thuật chuyển nhân là :

Sinh học Tốt nghiệp THPT
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Bài 20: Lực từ. Cảm ứng từ

Một dây dẫn thẳng dài mang dòng điện 20 A, đặt trong từ trường đều có cảm ứng từ B=5.10-3T. Dây dẫn đặt vuông góc với véctơ cảm ứng từ và chịu lực từ bằng 10-3N. Chiều dài của đoạn dây dẫn là

Vật lý Lớp 11
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30 đề thi thử thpt quốc gia tiếng anh năm 2020 cực hay có lời giải (Đề số 29)

Read the following passage and mark the letter A, B,C or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50Clara Barton became known as “ The Angel of the Battlefield” during the American Civil War. Born in Oxford, Massachusetts in 1821, Clara Barton’s interest in helping soldiers on the battlefield began when she was told army stories from her father. Another event that influenced her decision to help soldiers was an accident her brother had. His injuries were cared for by Barton for 2 year. At the time, she was only 11 years old. Barton began teaching school at the age of 15. She taught for 18 years before she moved to Washington, D.C in 1854.The civil war broke out 6 years later. Immediately, Barton started war service by helping the soldiers with their needs. At the battle of Bull run, Clara Barton received permission from the government to take care of the sick and hurt. Barton did this with great empathy and kindness. She acknowledged each soldier as a person . her endurance and courage on the battlefield were admired by many. When the war ended in 1865 , she used 4 years of her life to assist the government in searching for soldiers who were missing during the war.The search for missing soldiers and years of hard work made her feeble physically. In 1869, her doctors recommended a trip to Europe for a rest. While she was on vacation , she became involved with the International Red Cross, an organization set up by the Geneva Convention in 1864. Clara Barton realized that the Red Cross would be a best help to the United States. After she returned to the United States, she worked very hard to create an American Red Cross. She talked to government leaders and let American people know about the Red Cross. In 1881, the National Society of the Red Cross was finally established with its headquarters in Washington , D.C. Clara Barton managed its activities for 23 years.Barton never let her age stop her from helping people. At the age of 79, she helped food victims in Galveston, Texas. Barton finally resigned from the Red Cross in 1904. She was 92 years old and had truly earned her title “ The Angel of the Battle”.Question:What is the main idea of the passage?

Tiếng Anh Tốt nghiệp THPT
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20 Bộ đề Chinh phục điểm 9-10 môn Sinh Học cực hay có lời giải (Đề số 27)

Quy trình chuyển gen sản sinh protein của sữa người vào cừu tạo ra cừu chuyển gen bao gồm các bước :          (1) tạo vectơ chứa gen người và chuyển vào tế bào xoma của cừu.          (2) chọn lọc và nhân dòng tế bào chuyển gen.          (3) nuôi cấy tế bào xoma của cừu trong môi trường nhân tạo.          (4) lấy nhân tế bào chuyển gen rồi cho vào trứng đã bị mất nhân tạo ra tế bào chuyển nhân.(5) chuyển phôi đã phát triển từ tế bào chuyển nhân vào tử cung của cừu để phôi phát triển thành cơ thể.Thứ tự các bước tiến hành là:

Sinh học Tốt nghiệp THPT
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BỘ ĐỀ THI THPT QUỐC GIA CHUẨN CẤU TRÚC BỘ GIÁO DỤC MÔN TIẾNG ANH (P6)

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 questionsThey had such a fierce dog that nobody would visit them.

Tiếng Anh Tốt nghiệp THPT
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Tuyển tập 25 đề thi thử thpt quốc gia môn Vật lý có lời giải chi tiết (P4)

Một kim loại có giới hạn quang điện λ0 . Ánh sáng có khả năng làm bật electron ra khỏi kim loại đó có bước sóng λ  thỏa mãn:

Vật lý Tốt nghiệp THPT
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BỘ ĐỀ THI THPT QUỐC GIA CHUẨN CẤU TRÚC BỘ GIÁO DỤC MÔN TIẾNG ANH (P6)

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 questionsLisa always reminds me of my youngest sister

Tiếng Anh Tốt nghiệp THPT
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30 đề thi thử thpt quốc gia tiếng anh năm 2020 cực hay có lời giải (Đề số 29)

Read the following passage and mark the letter A, B,C or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50Clara Barton became known as “ The Angel of the Battlefield” during the American Civil War. Born in Oxford, Massachusetts in 1821, Clara Barton’s interest in helping soldiers on the battlefield began when she was told army stories from her father. Another event that influenced her decision to help soldiers was an accident her brother had. His injuries were cared for by Barton for 2 year. At the time, she was only 11 years old. Barton began teaching school at the age of 15. She taught for 18 years before she moved to Washington, D.C in 1854.The civil war broke out 6 years later. Immediately, Barton started war service by helping the soldiers with their needs. At the battle of Bull run, Clara Barton received permission from the government to take care of the sick and hurt. Barton did this with great empathy and kindness. She acknowledged each soldier as a person . her endurance and courage on the battlefield were admired by many. When the war ended in 1865 , she used 4 years of her life to assist the government in searching for soldiers who were missing during the war.The search for missing soldiers and years of hard work made her feeble physically. In 1869, her doctors recommended a trip to Europe for a rest. While she was on vacation , she became involved with the International Red Cross, an organization set up by the Geneva Convention in 1864. Clara Barton realized that the Red Cross would be a best help to the United States. After she returned to the United States, she worked very hard to create an American Red Cross. She talked to government leaders and let American people know about the Red Cross. In 1881, the National Society of the Red Cross was finally established with its headquarters in Washington , D.C. Clara Barton managed its activities for 23 years.Barton never let her age stop her from helping people. At the age of 79, she helped food victims in Galveston, Texas. Barton finally resigned from the Red Cross in 1904. She was 92 years old and had truly earned her title “ The Angel of the Battle”.Question:What does the author mention about the American Red Cross?

Tiếng Anh Tốt nghiệp THPT
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BỘ ĐỀ THI THPT QUỐC GIA CHUẨN CẤU TRÚC BỘ GIÁO DỤC MÔN TIẾNG ANH (P6)

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 questionsThe review overvalued his latest film

Tiếng Anh Tốt nghiệp THPT
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20 Bộ đề Chinh phục điểm 9-10 môn Sinh Học cực hay có lời giải (Đề số 27)

Ở một loài thực vật sinh sản bằng tự thụ phấn nghiêm ngặt có A quy định hoa đỏ trội hoàn toàn so với a quy định hoa trắng. Thế hệ xuất phát (P) có 100 cá thể đều có kiểu hình trội, quá trình tự thụ phấn liên tục thì đến đời F3 thấy có tỉ lệ kiểu hình là 43 cây hoa đỏ : 21 cây hoa trắng. Trong số 100 cây (P) nói trên, có bao nhiêu cây không thuần chủng?

Sinh học Tốt nghiệp THPT
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Bài 20: Lực từ. Cảm ứng từ

Hai thanh ray nằm ngang, song song và cách nhau l = 20 cm đặt trong từ trường đều có véctơ cảm ứng từ thẳng đứng hướng lên với B = 0,2 T. Một thanh kim loại MN đặt trên ray vuông góc với hai thanh ray AB và CD với hệ số ma sát bằng 0,1. Nối ray với nguồn điện ξ = 12 V, r = 0,2 Ω. Biết điện trở của thanh kim loại là R = 1 Ω và khối lượng của thanh ray là m = 100 g. Bỏ qua điện trở của ray và dây nối. Lấy g=10m/s2. Độ lớn gia tốc chuyển động của thanh MN là

Vật lý Lớp 11
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Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 21)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.    Humans have struggled against weeds since the beginnings of agriculture. Marring our gardens is one of the milder effects of weeds - any plants that thrive where they are unwanted. They clog waterways, destroy wildlife habitats, and impede farming. Their spread eliminates grazing areas and accounts for one-third of all crop loss. They compete for sunlight, nutrients, and water with useful plants.     The global need for weed control had been answered mainly by the chemical industry. Its herbicides are effective and sometimes necessary, but some pose serious problems, particularly if misused. Toxic compounds threaten animal and public health when they accumulate in food plants, groundwater, and drinking water. They also harm workers who apply them.     In recent years, the chemical industry has introduced several herbicides that are more ecologically sound. Yet new chemicals alone cannot solve the world's weed problems. Hence, scientists are exploring the innate weed-killing powers of living organisms, primarily insects and microorganisms.     The biological agents now in use are environmentally benign and are harmless to humans. They can be chosen for their ability to attack selected targets and leave crops and other plants untouched. In contrast, some of the most effective chemicals kill virtually all the plants they come in contact with, sparing only those that are naturally resistant or have been genetically modified for resistance. Furthermore, a number of biological agents can be administered only once, after which no added applications are needed. Chemicals typically must be used several times per growing season.Which of the following best describes the organization of the passage?

Tiếng Anh Tốt nghiệp THPT
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30 đề thi thử thpt quốc gia tiếng anh năm 2020 cực hay có lời giải (Đề số 29)

Read the following passage and mark the letter A, B,C or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50Clara Barton became known as “ The Angel of the Battlefield” during the American Civil War. Born in Oxford, Massachusetts in 1821, Clara Barton’s interest in helping soldiers on the battlefield began when she was told army stories from her father. Another event that influenced her decision to help soldiers was an accident her brother had. His injuries were cared for by Barton for 2 year. At the time, she was only 11 years old. Barton began teaching school at the age of 15. She taught for 18 years before she moved to Washington, D.C in 1854.The civil war broke out 6 years later. Immediately, Barton started war service by helping the soldiers with their needs. At the battle of Bull run, Clara Barton received permission from the government to take care of the sick and hurt. Barton did this with great empathy and kindness. She acknowledged each soldier as a person . her endurance and courage on the battlefield were admired by many. When the war ended in 1865 , she used 4 years of her life to assist the government in searching for soldiers who were missing during the war.The search for missing soldiers and years of hard work made her feeble physically. In 1869, her doctors recommended a trip to Europe for a rest. While she was on vacation , she became involved with the International Red Cross, an organization set up by the Geneva Convention in 1864. Clara Barton realized that the Red Cross would be a best help to the United States. After she returned to the United States, she worked very hard to create an American Red Cross. She talked to government leaders and let American people know about the Red Cross. In 1881, the National Society of the Red Cross was finally established with its headquarters in Washington , D.C. Clara Barton managed its activities for 23 years.Barton never let her age stop her from helping people. At the age of 79, she helped food victims in Galveston, Texas. Barton finally resigned from the Red Cross in 1904. She was 92 years old and had truly earned her title “ The Angel of the Battle”.Question:What can be inferred about the government?

Tiếng Anh Tốt nghiệp THPT
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BỘ ĐỀ THI THPT QUỐC GIA CHUẨN CẤU TRÚC BỘ GIÁO DỤC MÔN 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 42The three phases of human memory are the sensory memory, the short-term memory, and the long- term memory. This division of the memory into phases is based on the length of time of the memory.Sensory memory is instantaneous memory. It is an image or memory that enters your mind only for a short period of time; it comes and goes in under a second. The memory will not last longer than that unless the information enters the short-term memory.Information can be held in the short-term memory for about twenty seconds or as long as you are actively using it. If you repeat a fact to yourself, that fact will stay in your short-term memory as long as you keep repeating it. Once you stop repeating it, either it is forgotten or it moves into long term memory.Long-term memory is the huge memory tank that can hold ideas and images for years and years. Information can be added to your long-term memory when you actively try to put it there through memorization or when an idea or image enters your mind on its own.It can be inferred from the passage that if a person remembers a piece of « information for two days, this is probably _________.

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Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 21)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.    Humans have struggled against weeds since the beginnings of agriculture. Marring our gardens is one of the milder effects of weeds - any plants that thrive where they are unwanted. They clog waterways, destroy wildlife habitats, and impede farming. Their spread eliminates grazing areas and accounts for one-third of all crop loss. They compete for sunlight, nutrients, and water with useful plants.     The global need for weed control had been answered mainly by the chemical industry. Its herbicides are effective and sometimes necessary, but some pose serious problems, particularly if misused. Toxic compounds threaten animal and public health when they accumulate in food plants, groundwater, and drinking water. They also harm workers who apply them.     In recent years, the chemical industry has introduced several herbicides that are more ecologically sound. Yet new chemicals alone cannot solve the world's weed problems. Hence, scientists are exploring the innate weed-killing powers of living organisms, primarily insects and microorganisms.     The biological agents now in use are environmentally benign and are harmless to humans. They can be chosen for their ability to attack selected targets and leave crops and other plants untouched. In contrast, some of the most effective chemicals kill virtually all the plants they come in contact with, sparing only those that are naturally resistant or have been genetically modified for resistance. Furthermore, a number of biological agents can be administered only once, after which no added applications are needed. Chemicals typically must be used several times per growing season.According to the passage, biological agents mainly consist of________

Tiếng Anh Tốt nghiệp THPT
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BỘ ĐỀ THI THPT QUỐC GIA CHUẨN CẤU TRÚC BỘ GIÁO DỤC MÔN 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 42The three phases of human memory are the sensory memory, the short-term memory, and the long- term memory. This division of the memory into phases is based on the length of time of the memory.Sensory memory is instantaneous memory. It is an image or memory that enters your mind only for a short period of time; it comes and goes in under a second. The memory will not last longer than that unless the information enters the short-term memory.Information can be held in the short-term memory for about twenty seconds or as long as you are actively using it. If you repeat a fact to yourself, that fact will stay in your short-term memory as long as you keep repeating it. Once you stop repeating it, either it is forgotten or it moves into long term memory.Long-term memory is the huge memory tank that can hold ideas and images for years and years. Information can be added to your long-term memory when you actively try to put it there through memorization or when an idea or image enters your mind on its own.The expression “on its own” in the last sentence can be best replaced by

Tiếng Anh Tốt nghiệp THPT
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30 đề thi thử thpt quốc gia tiếng anh năm 2020 cực hay có lời giải (Đề số 29)

Read the following passage and mark the letter A, B,C or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50Clara Barton became known as “ The Angel of the Battlefield” during the American Civil War. Born in Oxford, Massachusetts in 1821, Clara Barton’s interest in helping soldiers on the battlefield began when she was told army stories from her father. Another event that influenced her decision to help soldiers was an accident her brother had. His injuries were cared for by Barton for 2 year. At the time, she was only 11 years old. Barton began teaching school at the age of 15. She taught for 18 years before she moved to Washington, D.C in 1854.The civil war broke out 6 years later. Immediately, Barton started war service by helping the soldiers with their needs. At the battle of Bull run, Clara Barton received permission from the government to take care of the sick and hurt. Barton did this with great empathy and kindness. She acknowledged each soldier as a person . her endurance and courage on the battlefield were admired by many. When the war ended in 1865 , she used 4 years of her life to assist the government in searching for soldiers who were missing during the war.The search for missing soldiers and years of hard work made her feeble physically. In 1869, her doctors recommended a trip to Europe for a rest. While she was on vacation , she became involved with the International Red Cross, an organization set up by the Geneva Convention in 1864. Clara Barton realized that the Red Cross would be a best help to the United States. After she returned to the United States, she worked very hard to create an American Red Cross. She talked to government leaders and let American people know about the Red Cross. In 1881, the National Society of the Red Cross was finally established with its headquarters in Washington , D.C. Clara Barton managed its activities for 23 years.Barton never let her age stop her from helping people. At the age of 79, she helped food victims in Galveston, Texas. Barton finally resigned from the Red Cross in 1904. She was 92 years old and had truly earned her title “ The Angel of the Battle”.Question:The word acknowledged in paragraph 2 could best be replaced by

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Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 21)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.    Humans have struggled against weeds since the beginnings of agriculture. Marring our gardens is one of the milder effects of weeds - any plants that thrive where they are unwanted. They clog waterways, destroy wildlife habitats, and impede farming. Their spread eliminates grazing areas and accounts for one-third of all crop loss. They compete for sunlight, nutrients, and water with useful plants.     The global need for weed control had been answered mainly by the chemical industry. Its herbicides are effective and sometimes necessary, but some pose serious problems, particularly if misused. Toxic compounds threaten animal and public health when they accumulate in food plants, groundwater, and drinking water. They also harm workers who apply them.     In recent years, the chemical industry has introduced several herbicides that are more ecologically sound. Yet new chemicals alone cannot solve the world's weed problems. Hence, scientists are exploring the innate weed-killing powers of living organisms, primarily insects and microorganisms.     The biological agents now in use are environmentally benign and are harmless to humans. They can be chosen for their ability to attack selected targets and leave crops and other plants untouched. In contrast, some of the most effective chemicals kill virtually all the plants they come in contact with, sparing only those that are naturally resistant or have been genetically modified for resistance. Furthermore, a number of biological agents can be administered only once, after which no added applications are needed. Chemicals typically must be used several times per growing season.The word "innate" in paragraph 3 is closest in meaning to________

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20 Bộ đề Chinh phục điểm 9-10 môn Sinh Học cực hay có lời giải (Đề số 27)

Hoạt động nào sau đây không phải nguyên nhân trực tiếp làm tăng hàm lượng khí hiện nay trong khí quyển?

Sinh học Tốt nghiệp THPT
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30 đề thi thử thpt quốc gia tiếng anh năm 2020 cực hay có lời giải (Đề số 29)

Read the following passage and mark the letter A, B,C or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50Clara Barton became known as “ The Angel of the Battlefield” during the American Civil War. Born in Oxford, Massachusetts in 1821, Clara Barton’s interest in helping soldiers on the battlefield began when she was told army stories from her father. Another event that influenced her decision to help soldiers was an accident her brother had. His injuries were cared for by Barton for 2 year. At the time, she was only 11 years old. Barton began teaching school at the age of 15. She taught for 18 years before she moved to Washington, D.C in 1854.The civil war broke out 6 years later. Immediately, Barton started war service by helping the soldiers with their needs. At the battle of Bull run, Clara Barton received permission from the government to take care of the sick and hurt. Barton did this with great empathy and kindness. She acknowledged each soldier as a person . her endurance and courage on the battlefield were admired by many. When the war ended in 1865 , she used 4 years of her life to assist the government in searching for soldiers who were missing during the war.The search for missing soldiers and years of hard work made her feeble physically. In 1869, her doctors recommended a trip to Europe for a rest. While she was on vacation , she became involved with the International Red Cross, an organization set up by the Geneva Convention in 1864. Clara Barton realized that the Red Cross would be a best help to the United States. After she returned to the United States, she worked very hard to create an American Red Cross. She talked to government leaders and let American people know about the Red Cross. In 1881, the National Society of the Red Cross was finally established with its headquarters in Washington , D.C. Clara Barton managed its activities for 23 years.Barton never let her age stop her from helping people. At the age of 79, she helped food victims in Galveston, Texas. Barton finally resigned from the Red Cross in 1904. She was 92 years old and had truly earned her title “ The Angel of the Battle”.Question:The word this in paragraph 2 refers to

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20 Bộ đề Chinh phục điểm 9-10 môn Sinh Học cực hay có lời giải (Đề số 27)

Phát biểu nào sau đây không đúng khi nói về giao phối không ngẫu nhiên?

Sinh học Tốt nghiệp THPT
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BỘ ĐỀ THI THPT QUỐC GIA CHUẨN CẤU TRÚC BỘ GIÁO DỤC MÔN 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 42The three phases of human memory are the sensory memory, the short-term memory, and the long- term memory. This division of the memory into phases is based on the length of time of the memory.Sensory memory is instantaneous memory. It is an image or memory that enters your mind only for a short period of time; it comes and goes in under a second. The memory will not last longer than that unless the information enters the short-term memory.Information can be held in the short-term memory for about twenty seconds or as long as you are actively using it. If you repeat a fact to yourself, that fact will stay in your short-term memory as long as you keep repeating it. Once you stop repeating it, either it is forgotten or it moves into long term memory.Long-term memory is the huge memory tank that can hold ideas and images for years and years. Information can be added to your long-term memory when you actively try to put it there through memorization or when an idea or image enters your mind on its own.All of the following are TRUE about long - term memory EXCEPT that __________

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Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 21)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.    Humans have struggled against weeds since the beginnings of agriculture. Marring our gardens is one of the milder effects of weeds - any plants that thrive where they are unwanted. They clog waterways, destroy wildlife habitats, and impede farming. Their spread eliminates grazing areas and accounts for one-third of all crop loss. They compete for sunlight, nutrients, and water with useful plants.     The global need for weed control had been answered mainly by the chemical industry. Its herbicides are effective and sometimes necessary, but some pose serious problems, particularly if misused. Toxic compounds threaten animal and public health when they accumulate in food plants, groundwater, and drinking water. They also harm workers who apply them.     In recent years, the chemical industry has introduced several herbicides that are more ecologically sound. Yet new chemicals alone cannot solve the world's weed problems. Hence, scientists are exploring the innate weed-killing powers of living organisms, primarily insects and microorganisms.     The biological agents now in use are environmentally benign and are harmless to humans. They can be chosen for their ability to attack selected targets and leave crops and other plants untouched. In contrast, some of the most effective chemicals kill virtually all the plants they come in contact with, sparing only those that are naturally resistant or have been genetically modified for resistance. Furthermore, a number of biological agents can be administered only once, after which no added applications are needed. Chemicals typically must be used several times per growing season.Which of the following is NOT given as an advantage of using biological agents over chemical herbicides?

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Tuyển tập 25 đề thi thử thpt quốc gia môn Vật lý có lời giải chi tiết (P4)

Một vật trọng lượng 1,0 N có động năng 1,0 J. Lấy g=10m/s2. Khi đó vận tốc của vật gần nhất với giá trị nào sau đây?

Vật lý Tốt nghiệp THPT
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Bài 20: Lực từ. Cảm ứng từ

Một dây dẫn thẳng MN có chiều dài l = 25 cm, khối lượng của một đơn vị chiều dài của dây là D = 0,04 kg/m. Dây được treo bằng hai dây nhẹ theo phương thẳng đứng và đặt trong từ trường đều có véc - tơ cảm ứng từ vuông góc với mặt phẳng chứa MN và dây treo với B = 0,04 T. Cho dòng điện I = 16 A có chiều từ M tới N chạy qua dây và g=10m/s2. Lực căng của mỗi dây là

Vật lý Lớp 11
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30 đề thi thử thpt quốc gia tiếng anh năm 2020 cực hay có lời giải (Đề số 29)

Read the following passage and mark the letter A, B,C or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50Clara Barton became known as “ The Angel of the Battlefield” during the American Civil War. Born in Oxford, Massachusetts in 1821, Clara Barton’s interest in helping soldiers on the battlefield began when she was told army stories from her father. Another event that influenced her decision to help soldiers was an accident her brother had. His injuries were cared for by Barton for 2 year. At the time, she was only 11 years old. Barton began teaching school at the age of 15. She taught for 18 years before she moved to Washington, D.C in 1854.The civil war broke out 6 years later. Immediately, Barton started war service by helping the soldiers with their needs. At the battle of Bull run, Clara Barton received permission from the government to take care of the sick and hurt. Barton did this with great empathy and kindness. She acknowledged each soldier as a person . her endurance and courage on the battlefield were admired by many. When the war ended in 1865 , she used 4 years of her life to assist the government in searching for soldiers who were missing during the war.The search for missing soldiers and years of hard work made her feeble physically. In 1869, her doctors recommended a trip to Europe for a rest. While she was on vacation , she became involved with the International Red Cross, an organization set up by the Geneva Convention in 1864. Clara Barton realized that the Red Cross would be a best help to the United States. After she returned to the United States, she worked very hard to create an American Red Cross. She talked to government leaders and let American people know about the Red Cross. In 1881, the National Society of the Red Cross was finally established with its headquarters in Washington , D.C. Clara Barton managed its activities for 23 years.Barton never let her age stop her from helping people. At the age of 79, she helped food victims in Galveston, Texas. Barton finally resigned from the Red Cross in 1904. She was 92 years old and had truly earned her title “ The Angel of the Battle”.Question:The phrase broke out in paragraph 2 is closest in meaning to

Tiếng Anh Tốt nghiệp THPT
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BỘ ĐỀ THI THPT QUỐC GIA CHUẨN CẤU TRÚC BỘ GIÁO DỤC MÔN 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 42The three phases of human memory are the sensory memory, the short-term memory, and the long- term memory. This division of the memory into phases is based on the length of time of the memory.Sensory memory is instantaneous memory. It is an image or memory that enters your mind only for a short period of time; it comes and goes in under a second. The memory will not last longer than that unless the information enters the short-term memory.Information can be held in the short-term memory for about twenty seconds or as long as you are actively using it. If you repeat a fact to yourself, that fact will stay in your short-term memory as long as you keep repeating it. Once you stop repeating it, either it is forgotten or it moves into long term memory.Long-term memory is the huge memory tank that can hold ideas and images for years and years. Information can be added to your long-term memory when you actively try to put it there through memorization or when an idea or image enters your mind on its own.According to the passage, when will information stay in your short-term memory?

Tiếng Anh Tốt nghiệp THPT
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20 Bộ đề Chinh phục điểm 9-10 môn Sinh Học cực hay có lời giải (Đề số 27)

Cho các thông tin sau :          (1) Vi khuẩn thường sống trong các môi trường có nhiều tác nhân gây đột biến.          (2) Vi khuẩn sinh sản rất nhanh, thời gian thế hệ ngắn.          (3) Ở vùng nhân của vi khuẩn chỉ có một phân tử AND mạch kép, có dạng vòng nên hầu hết các đột biến đều biểu hiện ở ngay kiểu hình.          (4) Vi khuẩn có thể sống ký sinh, hoại sinh hoặc tự dưỡng.Những thông tin được dùng làm căn cứ để giải thích sự thay đổi tần số alen trong quần thể vi khuẩn nhanh hơn so với sự thay đổi tần số alen trong quần thể sinh vật nhân thực lưỡng bội là:

Sinh học Tốt nghiệp THPT
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Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 21)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.    Humans have struggled against weeds since the beginnings of agriculture. Marring our gardens is one of the milder effects of weeds - any plants that thrive where they are unwanted. They clog waterways, destroy wildlife habitats, and impede farming. Their spread eliminates grazing areas and accounts for one-third of all crop loss. They compete for sunlight, nutrients, and water with useful plants.     The global need for weed control had been answered mainly by the chemical industry. Its herbicides are effective and sometimes necessary, but some pose serious problems, particularly if misused. Toxic compounds threaten animal and public health when they accumulate in food plants, groundwater, and drinking water. They also harm workers who apply them.     In recent years, the chemical industry has introduced several herbicides that are more ecologically sound. Yet new chemicals alone cannot solve the world's weed problems. Hence, scientists are exploring the innate weed-killing powers of living organisms, primarily insects and microorganisms.     The biological agents now in use are environmentally benign and are harmless to humans. They can be chosen for their ability to attack selected targets and leave crops and other plants untouched. In contrast, some of the most effective chemicals kill virtually all the plants they come in contact with, sparing only those that are naturally resistant or have been genetically modified for resistance. Furthermore, a number of biological agents can be administered only once, after which no added applications are needed. Chemicals typically must be used several times per growing season.Which of the following statements about the use of chemical agents as herbicides would the author most likely agree?

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30 đề thi thử thpt quốc gia tiếng anh năm 2020 cực hay có lời giải (Đề số 29)

Read the following passage and mark the letter A, B,C or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50Clara Barton became known as “ The Angel of the Battlefield” during the American Civil War. Born in Oxford, Massachusetts in 1821, Clara Barton’s interest in helping soldiers on the battlefield began when she was told army stories from her father. Another event that influenced her decision to help soldiers was an accident her brother had. His injuries were cared for by Barton for 2 year. At the time, she was only 11 years old. Barton began teaching school at the age of 15. She taught for 18 years before she moved to Washington, D.C in 1854.The civil war broke out 6 years later. Immediately, Barton started war service by helping the soldiers with their needs. At the battle of Bull run, Clara Barton received permission from the government to take care of the sick and hurt. Barton did this with great empathy and kindness. She acknowledged each soldier as a person . her endurance and courage on the battlefield were admired by many. When the war ended in 1865 , she used 4 years of her life to assist the government in searching for soldiers who were missing during the war.The search for missing soldiers and years of hard work made her feeble physically. In 1869, her doctors recommended a trip to Europe for a rest. While she was on vacation , she became involved with the International Red Cross, an organization set up by the Geneva Convention in 1864. Clara Barton realized that the Red Cross would be a best help to the United States. After she returned to the United States, she worked very hard to create an American Red Cross. She talked to government leaders and let American people know about the Red Cross. In 1881, the National Society of the Red Cross was finally established with its headquarters in Washington , D.C. Clara Barton managed its activities for 23 years.Barton never let her age stop her from helping people. At the age of 79, she helped food victims in Galveston, Texas. Barton finally resigned from the Red Cross in 1904. She was 92 years old and had truly earned her title “ The Angel of the Battle”.Question:According to the paragraph 1, which of the following is true of the young Barton Clara?

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BỘ ĐỀ THI THPT QUỐC GIA CHUẨN CẤU TRÚC BỘ GIÁO DỤC MÔN 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 42The three phases of human memory are the sensory memory, the short-term memory, and the long- term memory. This division of the memory into phases is based on the length of time of the memory.Sensory memory is instantaneous memory. It is an image or memory that enters your mind only for a short period of time; it comes and goes in under a second. The memory will not last longer than that unless the information enters the short-term memory.Information can be held in the short-term memory for about twenty seconds or as long as you are actively using it. If you repeat a fact to yourself, that fact will stay in your short-term memory as long as you keep repeating it. Once you stop repeating it, either it is forgotten or it moves into long term memory.Long-term memory is the huge memory tank that can hold ideas and images for years and years. Information can be added to your long-term memory when you actively try to put it there through memorization or when an idea or image enters your mind on its own.According to the passage, which type of memory is the shortest?

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20 Bộ đề Chinh phục điểm 9-10 môn Sinh Học cực hay có lời giải (Đề số 27)

Các nếp gấp của niêm mạc ruột, trên đó có các lông tuột và các lông cực nhỏ có tác dụng gì ?

Sinh học Tốt nghiệp THPT
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Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 21)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.    Humans have struggled against weeds since the beginnings of agriculture. Marring our gardens is one of the milder effects of weeds - any plants that thrive where they are unwanted. They clog waterways, destroy wildlife habitats, and impede farming. Their spread eliminates grazing areas and accounts for one-third of all crop loss. They compete for sunlight, nutrients, and water with useful plants.     The global need for weed control had been answered mainly by the chemical industry. Its herbicides are effective and sometimes necessary, but some pose serious problems, particularly if misused. Toxic compounds threaten animal and public health when they accumulate in food plants, groundwater, and drinking water. They also harm workers who apply them.     In recent years, the chemical industry has introduced several herbicides that are more ecologically sound. Yet new chemicals alone cannot solve the world's weed problems. Hence, scientists are exploring the innate weed-killing powers of living organisms, primarily insects and microorganisms.     The biological agents now in use are environmentally benign and are harmless to humans. They can be chosen for their ability to attack selected targets and leave crops and other plants untouched. In contrast, some of the most effective chemicals kill virtually all the plants they come in contact with, sparing only those that are naturally resistant or have been genetically modified for resistance. Furthermore, a number of biological agents can be administered only once, after which no added applications are needed. Chemicals typically must be used several times per growing season.Which of the following terms does the author define in the first paragraph?

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BỘ ĐỀ THI THPT QUỐC GIA CHUẨN CẤU TRÚC BỘ GIÁO DỤC MÔN 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 42The three phases of human memory are the sensory memory, the short-term memory, and the long- term memory. This division of the memory into phases is based on the length of time of the memory.Sensory memory is instantaneous memory. It is an image or memory that enters your mind only for a short period of time; it comes and goes in under a second. The memory will not last longer than that unless the information enters the short-term memory.Information can be held in the short-term memory for about twenty seconds or as long as you are actively using it. If you repeat a fact to yourself, that fact will stay in your short-term memory as long as you keep repeating it. Once you stop repeating it, either it is forgotten or it moves into long term memory.Long-term memory is the huge memory tank that can hold ideas and images for years and years. Information can be added to your long-term memory when you actively try to put it there through memorization or when an idea or image enters your mind on its own.The expression “is based on” in the first paragraph could be best replaced by __________.

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30 đề thi thử thpt quốc gia tiếng anh năm 2020 cực hay có lời giải (Đề số 29)

Mark the letter A, B, C, or D to indicate the sentence that best combines each pair of sentences in the following question.“ Finish your work. And then you can go home”.

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20 Bộ đề Chinh phục điểm 9-10 môn Sinh Học cực hay có lời giải (Đề số 27)

Có bao nhiêu nhận xét sau đây đúng khi nói về sự di truyền của tính trạng?          (1) Trong cùng một tế bào, các tính trạng di truyền liên kết với nhau.          (2) Khi gen bị đột biến thì quy luật di truyền của tính trạng sẽ bị thay đổi.          (3) Mỗi tính trạng chỉ di truyền theo quy luật xác định và đặc trưng cho loài.          (4) Tính trạng chất lượng thường do nhiều cặp gen tương tác cộng gộp quy định.          (5) Hiện tượng đột biến cấu trúc nhiễm sắc thể có khả năng làm thay đổi mối quan hệ giữa các tính trạng

Sinh học Tốt nghiệp THPT
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Đề thi thử THPT Quốc Gia môn Tiếng anh năm 2020 (Đề số 21)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 43 to 50.    Humans have struggled against weeds since the beginnings of agriculture. Marring our gardens is one of the milder effects of weeds - any plants that thrive where they are unwanted. They clog waterways, destroy wildlife habitats, and impede farming. Their spread eliminates grazing areas and accounts for one-third of all crop loss. They compete for sunlight, nutrients, and water with useful plants.     The global need for weed control had been answered mainly by the chemical industry. Its herbicides are effective and sometimes necessary, but some pose serious problems, particularly if misused. Toxic compounds threaten animal and public health when they accumulate in food plants, groundwater, and drinking water. They also harm workers who apply them.     In recent years, the chemical industry has introduced several herbicides that are more ecologically sound. Yet new chemicals alone cannot solve the world's weed problems. Hence, scientists are exploring the innate weed-killing powers of living organisms, primarily insects and microorganisms.     The biological agents now in use are environmentally benign and are harmless to humans. They can be chosen for their ability to attack selected targets and leave crops and other plants untouched. In contrast, some of the most effective chemicals kill virtually all the plants they come in contact with, sparing only those that are naturally resistant or have been genetically modified for resistance. Furthermore, a number of biological agents can be administered only once, after which no added applications are needed. Chemicals typically must be used several times per growing season.The word "Marring" in paragraph 1 is closest in meaning to________

Tiếng Anh Tốt nghiệp THPT
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BỘ ĐỀ THI THPT QUỐC GIA CHUẨN CẤU TRÚC BỘ GIÁO DỤC MÔN 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 42The three phases of human memory are the sensory memory, the short-term memory, and the long- term memory. This division of the memory into phases is based on the length of time of the memory.Sensory memory is instantaneous memory. It is an image or memory that enters your mind only for a short period of time; it comes and goes in under a second. The memory will not last longer than that unless the information enters the short-term memory.Information can be held in the short-term memory for about twenty seconds or as long as you are actively using it. If you repeat a fact to yourself, that fact will stay in your short-term memory as long as you keep repeating it. Once you stop repeating it, either it is forgotten or it moves into long term memory.Long-term memory is the huge memory tank that can hold ideas and images for years and years. Information can be added to your long-term memory when you actively try to put it there through memorization or when an idea or image enters your mind on its own.The three phases of memory discussed in the passage are differentiated according to ____________.

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