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57 Bài tập lên men glucozơ

Cho 9,0 kg glucozơ chứa 15% tạp chất, lên men thành ancol etylic. Trong quá trình chế biến, rượu bị hao hụt 10%. Khối lượng rượu etylic thu được là

Hóa học Lớp 12
Xem chi tiết 15.3 K lượt xem 6 năm trước
Đề thi thử THPT quốc gia năm 2019 môn tiếng anh chuẩn cấu trúc (Đề số 6)

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.              In the world today, particularly in the two most industrialized areas, North America and Europe, recycling is big news. People are talking about it, practicing it, and discovering new ways to be sensitive to the environment. Recycling means finding ways to use products a second time. The motto of the recycling movement is "Reduce, Reuse, Recycle".            The first step is to reduce garbage. In stores, a shopper has to buy products in blister packs, boxes and expensive plastic wrappings. A hamburger from a fast food restaurant comes in lots of packaging: usually paper, a box, and a bag. All that packaging is wasted resources. People should try to buy things that are wrapped simply, and to reuse cups and utensils. Another way to reduce waste is to buy high-quality products. When low quality appliances break, many customers throw them away and buy new ones - a loss of more resources and more energy. For example, if a customer buys a high-quality appliance that can be easily repaired, the manufacturer receives an important message. In the same way, if a customer chooses a product with less packaging, that customer sends an important message to the manufacturers. To reduce garbage, the throwaway must stop.            The second step is to reuse. It is better to buy juices and soft drinks in returnable bottles. After customers empty the bottles, they return them to the store. The manufacturers of the drinks collect the bottles, wash them, and then fill them again. The energy that is necessary to make new bottles is saved. In some parts of the world, returning bottles for money is a common practice. In those places, the garbage dumps have relatively little glass and plastic from throwaway bottles.           The third step is being environmentally sensitive is to recycle. Spent motor oil can be cleaned and used again. Aluminum cans are expensive to make. It takes the same amount of energy to make one aluminum can as it does to run a color TV set for three hours. When people collect and recycle aluminum (for new cans), they help save one of the world's precious resources.It was a waste when customers buy low-quality products because _______.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 445 lượt xem 6 năm trước
57 Bài tập lên men glucozơ

Lên men 1,08 kg glucozơ chứa 20% tạp chất, thu được 0,368 kg ancol etylic. Hiệu suất của quá trình lên men là

Hóa học Lớp 12
Xem chi tiết 1.3 K lượt xem 6 năm trước
Đề thi thử THPT quốc gia năm 2019 môn tiếng anh chuẩn cấu trúc (Đề số 6)

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.              In the world today, particularly in the two most industrialized areas, North America and Europe, recycling is big news. People are talking about it, practicing it, and discovering new ways to be sensitive to the environment. Recycling means finding ways to use products a second time. The motto of the recycling movement is "Reduce, Reuse, Recycle".            The first step is to reduce garbage. In stores, a shopper has to buy products in blister packs, boxes and expensive plastic wrappings. A hamburger from a fast food restaurant comes in lots of packaging: usually paper, a box, and a bag. All that packaging is wasted resources. People should try to buy things that are wrapped simply, and to reuse cups and utensils. Another way to reduce waste is to buy high-quality products. When low quality appliances break, many customers throw them away and buy new ones - a loss of more resources and more energy. For example, if a customer buys a high-quality appliance that can be easily repaired, the manufacturer receives an important message. In the same way, if a customer chooses a product with less packaging, that customer sends an important message to the manufacturers. To reduce garbage, the throwaway must stop.            The second step is to reuse. It is better to buy juices and soft drinks in returnable bottles. After customers empty the bottles, they return them to the store. The manufacturers of the drinks collect the bottles, wash them, and then fill them again. The energy that is necessary to make new bottles is saved. In some parts of the world, returning bottles for money is a common practice. In those places, the garbage dumps have relatively little glass and plastic from throwaway bottles.           The third step is being environmentally sensitive is to recycle. Spent motor oil can be cleaned and used again. Aluminum cans are expensive to make. It takes the same amount of energy to make one aluminum can as it does to run a color TV set for three hours. When people collect and recycle aluminum (for new cans), they help save one of the world's precious resources.What does the word “sensitive” means

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1.2 K lượt xem 6 năm trước
57 Bài tập lên men glucozơ

Cho 360 gam glucozơ lên men thành rượu etylic (giả sử chỉ xảy ra phản ứng tạo thành rượu etylic). Hỏi thu được bao nhiêu ml rượu etylic nguyên chất (d=0,8g.ml-1) biết hiệu suất phản ứng là 65%.

Hóa học Lớp 12
Xem chi tiết 9.7 K lượt xem 6 năm trước
Đề thi thử THPT quốc gia năm 2019 môn tiếng anh chuẩn cấu trúc (Đề số 6)

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.              In the world today, particularly in the two most industrialized areas, North America and Europe, recycling is big news. People are talking about it, practicing it, and discovering new ways to be sensitive to the environment. Recycling means finding ways to use products a second time. The motto of the recycling movement is "Reduce, Reuse, Recycle".            The first step is to reduce garbage. In stores, a shopper has to buy products in blister packs, boxes and expensive plastic wrappings. A hamburger from a fast food restaurant comes in lots of packaging: usually paper, a box, and a bag. All that packaging is wasted resources. People should try to buy things that are wrapped simply, and to reuse cups and utensils. Another way to reduce waste is to buy high-quality products. When low quality appliances break, many customers throw them away and buy new ones - a loss of more resources and more energy. For example, if a customer buys a high-quality appliance that can be easily repaired, the manufacturer receives an important message. In the same way, if a customer chooses a product with less packaging, that customer sends an important message to the manufacturers. To reduce garbage, the throwaway must stop.            The second step is to reuse. It is better to buy juices and soft drinks in returnable bottles. After customers empty the bottles, they return them to the store. The manufacturers of the drinks collect the bottles, wash them, and then fill them again. The energy that is necessary to make new bottles is saved. In some parts of the world, returning bottles for money is a common practice. In those places, the garbage dumps have relatively little glass and plastic from throwaway bottles.           The third step is being environmentally sensitive is to recycle. Spent motor oil can be cleaned and used again. Aluminum cans are expensive to make. It takes the same amount of energy to make one aluminum can as it does to run a color TV set for three hours. When people collect and recycle aluminum (for new cans), they help save one of the world's precious resources.Which is described as one of the most industrialized areas?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 2.2 K lượt xem 6 năm trước
HƯỚNG DẪN GIẢI CÁC BÀI TẬP HAY VÀ KHÓ TRONG ĐỀ THI THPT QUỐC GIA NĂM 2016

Cho m gam Mg vào dung dịch chứa 0,02 mol FeNO33 và 0,05 mol CuNO32, sau một thời gian thu được 2,16 gam kết tủa và dung dịch X chứa 3 muối. Tách lấy kết tủa, thêm tiếp 8 gam NaOH vào dung dịch X, sau khi các phản ứng hoàn toàn thu được 6,48 gam kết tủa. Giá trị của m là

Hóa học Lớp 12
Xem chi tiết 1 K lượt xem 6 năm trước
Đề thi thử THPT quốc gia năm 2019 môn tiếng anh chuẩn cấu trúc (Đề số 6)

Mark the letter A, B, C or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions. I received housing benefit when I was unemployed.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1.1 K lượt xem 6 năm trước
PHÂN DẠNG CÂU HỎI VÀ VÍ DỤ MINH HỌA

Cho các chất : but-1-en, but-1-in, buta-1,3-đien, vinylaxetilen, isobutilen. Có bao nhiêu chất trong số các chất trên khi phản ứng hoàn toàn với khí H2 dư (xúc tác Ni, đung nóng) tạo ra butan ?

Hóa học Lớp 12
Xem chi tiết 1.8 K lượt xem 6 năm trước
Đề thi thử THPT quốc gia năm 2019 môn tiếng anh chuẩn cấu trúc (Đề số 6)

Mark the letter A, B, C or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions. My uncle, who is an accomplished guitarist, taught me how to play.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 2.5 K lượt xem 6 năm trước
HƯỚNG DẪN GIẢI CÁC BÀI TẬP HAY VÀ KHÓ TRONG ĐỀ THI THPT QUỐC GIA NĂM 2016

Cho m gam Mg vào dung dịch X gồm 0,03 mol ZnNO32và 0,05 mol CuNO32, sau một thời gian thu được 5,25 gam kim loại và dung dịch Y. Cho dung dịch NaOH vào Y, khối lượng kết tủa lớn nhất thu được là 6,67 gam. Giá trị của m là

Hóa học Lớp 12
Xem chi tiết 535 lượt xem 6 năm trước
Đề thi thử THPT quốc gia năm 2019 môn tiếng anh chuẩn cấu trúc (Đề số 6)

Read the following passage and mark A, B, C, or D to indicate the correct answer to each of the blanks.           Everyone needs a home where they feel sheltered and safe. Today we live in modern flats and houses, (36) ___________ have air-conditioning to keep us cool, and heating to keep us warm. There is electricity for lighting and supplies of gas or oil for the heating. Hot and cold water (37) ___________ from the taps and dirty water disappears (38) ___________ the drains. Many of our homes have balconies or gardens. In the past, people made their homes from materials that they found nearby. When we look at different houses we can tell how old they are from the materials used and the way they were built. It was different long (39) ___________ people did not have water in their homes and there were no electric lights. To keep warm, they sometimes made (40) ___________ inside their homes. With a fire started they could cook their food and heat water.Điền vào số (40)

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 722 lượt xem 6 năm trước
PHÂN DẠNG CÂU HỎI VÀ VÍ DỤ MINH HỌA

Trong các chất: stiren, axit acrylic, axit axetic, vinylaxetilen, axeton và butan, số chất có khả năng tham gia phản ứng cộng hiđro (xúc tác Ni, đun nóng).

Hóa học Lớp 12
Xem chi tiết 1.3 K lượt xem 6 năm trước
Đề thi thử THPT quốc gia năm 2019 môn tiếng anh chuẩn cấu trúc (Đề số 6)

Read the following passage and mark A, B, C, or D to indicate the correct answer to each of the blanks.           Everyone needs a home where they feel sheltered and safe. Today we live in modern flats and houses, (36) ___________ have air-conditioning to keep us cool, and heating to keep us warm. There is electricity for lighting and supplies of gas or oil for the heating. Hot and cold water (37) ___________ from the taps and dirty water disappears (38) ___________ the drains. Many of our homes have balconies or gardens. In the past, people made their homes from materials that they found nearby. When we look at different houses we can tell how old they are from the materials used and the way they were built. It was different long (39) ___________ people did not have water in their homes and there were no electric lights. To keep warm, they sometimes made (40) ___________ inside their homes. With a fire started they could cook their food and heat water.Điền vào số (39)

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1.6 K lượt xem 6 năm trước
KỲ THI THỬ THPT QUỐC GIA NĂM 2019 MÔN TIẾNG ANH(P19)

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 After two decades of growing student enrollments and economic prosperity, business schools in the United States have started to face harder times. Only Harvard’s MBA School has shown a substantial increase in enrollments in recent years. Both Princeton and Stanford have seen decreases in their enrollments. Since 1990, the number of people receiving Masters in Business Administration (MBA) degrees, has dropped about 3 percent to 75,000, and the trend of lower enrollment rates is expected to continue.   There are two factors causing this decrease in students seeking an MBA degree. The first one is that many graduates of four-year colleges are finding that an MBA degree does not guarantee a plush job on Wall Street or in other financial districts of major American cities. Many of the entry-level management jobs are for students graduating with Master of Arts degrees in English and the humanities as well as those holding MBA degrees. Students have asked the question, “Is an MBA degree really what I need to be best prepared for getting a good job?” The second major factor has been the cutting of American payrolls and the lower number of entry-level jobs being offered. Business needs are changing, and MBA schools are struggling to meet the new demands.As used in the second paragraph, the word “struggling” is closest in meaning to ________.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 375 lượt xem 6 năm trước
PHÂN DẠNG CÂU HỎI VÀ VÍ DỤ MINH HỌA

Trong các chất: stiren, axit acrylic, axit axetic, vinylaxetilen và butan, số chất có khả năng tham gia phản ứng cộng hiđro (xúc tác Ni, đun nóng) là

Hóa học Lớp 12
Xem chi tiết 4.9 K lượt xem 6 năm trước
KỲ THI THỬ THPT QUỐC GIA NĂM 2019 MÔN TIẾNG ANH(P19)

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 After two decades of growing student enrollments and economic prosperity, business schools in the United States have started to face harder times. Only Harvard’s MBA School has shown a substantial increase in enrollments in recent years. Both Princeton and Stanford have seen decreases in their enrollments. Since 1990, the number of people receiving Masters in Business Administration (MBA) degrees, has dropped about 3 percent to 75,000, and the trend of lower enrollment rates is expected to continue.   There are two factors causing this decrease in students seeking an MBA degree. The first one is that many graduates of four-year colleges are finding that an MBA degree does not guarantee a plush job on Wall Street or in other financial districts of major American cities. Many of the entry-level management jobs are for students graduating with Master of Arts degrees in English and the humanities as well as those holding MBA degrees. Students have asked the question, “Is an MBA degree really what I need to be best prepared for getting a good job?” The second major factor has been the cutting of American payrolls and the lower number of entry-level jobs being offered. Business needs are changing, and MBA schools are struggling to meet the new demands.The first paragraph is mainly concerned with which of the following?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 792 lượt xem 6 năm trước
HƯỚNG DẪN GIẢI CÁC BÀI TẬP HAY VÀ KHÓ TRONG ĐỀ THI THPT QUỐC GIA NĂM 2016

Nung m gam hỗn hợp X gồm Fe, FeNO32, FeNO33 và FeCO3 trong bình kín (không có không khí). Sau khi các phản ứng xảy ra hoàn toàn, thu được chất rắn Y và khí Z có tỉ khối so với H2 là 22,5 (giả sử khí NO2 sinh ra không tham gia phản ứng nào khác). Cho Y tan hoàn toàn trong dung dịch gồm 0,01 mol KNO3 và 0,15 mol H2SO4 (loãng), thu được dung dịch chỉ chứa 21,23 gam muối trung hoà của kim loại và hỗn hợp hai khí có tỉ khối so với H2 là 8 (trong đó có một khí hoá nâu trong không khí). Giá trị của m là ?

Hóa học Lớp 12
Xem chi tiết 322 lượt xem 6 năm trước
Đề thi thử THPT quốc gia năm 2019 môn tiếng anh chuẩn cấu trúc (Đề số 6)

Read the following passage and mark A, B, C, or D to indicate the correct answer to each of the blanks.           Everyone needs a home where they feel sheltered and safe. Today we live in modern flats and houses, (36) ___________ have air-conditioning to keep us cool, and heating to keep us warm. There is electricity for lighting and supplies of gas or oil for the heating. Hot and cold water (37) ___________ from the taps and dirty water disappears (38) ___________ the drains. Many of our homes have balconies or gardens. In the past, people made their homes from materials that they found nearby. When we look at different houses we can tell how old they are from the materials used and the way they were built. It was different long (39) ___________ people did not have water in their homes and there were no electric lights. To keep warm, they sometimes made (40) ___________ inside their homes. With a fire started they could cook their food and heat water.Điền vào số (38)

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 3 K lượt xem 6 năm trước
Đề thi thử THPT quốc gia năm 2019 môn tiếng anh chuẩn cấu trúc (Đề số 6)

Read the following passage and mark A, B, C, or D to indicate the correct answer to each of the blanks.           Everyone needs a home where they feel sheltered and safe. Today we live in modern flats and houses, (36) ___________ have air-conditioning to keep us cool, and heating to keep us warm. There is electricity for lighting and supplies of gas or oil for the heating. Hot and cold water (37) ___________ from the taps and dirty water disappears (38) ___________ the drains. Many of our homes have balconies or gardens. In the past, people made their homes from materials that they found nearby. When we look at different houses we can tell how old they are from the materials used and the way they were built. It was different long (39) ___________ people did not have water in their homes and there were no electric lights. To keep warm, they sometimes made (40) ___________ inside their homes. With a fire started they could cook their food and heat water.Điền vào số (37)

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 851 lượt xem 6 năm trước
KỲ THI THỬ THPT QUỐC GIA NĂM 2019 MÔN TIẾNG ANH(P19)

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 After two decades of growing student enrollments and economic prosperity, business schools in the United States have started to face harder times. Only Harvard’s MBA School has shown a substantial increase in enrollments in recent years. Both Princeton and Stanford have seen decreases in their enrollments. Since 1990, the number of people receiving Masters in Business Administration (MBA) degrees, has dropped about 3 percent to 75,000, and the trend of lower enrollment rates is expected to continue.   There are two factors causing this decrease in students seeking an MBA degree. The first one is that many graduates of four-year colleges are finding that an MBA degree does not guarantee a plush job on Wall Street or in other financial districts of major American cities. Many of the entry-level management jobs are for students graduating with Master of Arts degrees in English and the humanities as well as those holding MBA degrees. Students have asked the question, “Is an MBA degree really what I need to be best prepared for getting a good job?” The second major factor has been the cutting of American payrolls and the lower number of entry-level jobs being offered. Business needs are changing, and MBA schools are struggling to meet the new demands.According to the passage, what are two causes of declining business school enrollment?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 552 lượt xem 6 năm trước
30 đề thi thử đề thi thử THPTQG môn Tiếng Anh có lời giải chi tiết (Đề số 28)

Even on the most careful prepared trip, problems will sometimes develop.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1.7 K lượt xem 6 năm trước
KỲ THI THỬ THPT QUỐC GIA NĂM 2019 MÔN TIẾNG ANH(P19)

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 After two decades of growing student enrollments and economic prosperity, business schools in the United States have started to face harder times. Only Harvard’s MBA School has shown a substantial increase in enrollments in recent years. Both Princeton and Stanford have seen decreases in their enrollments. Since 1990, the number of people receiving Masters in Business Administration (MBA) degrees, has dropped about 3 percent to 75,000, and the trend of lower enrollment rates is expected to continue.   There are two factors causing this decrease in students seeking an MBA degree. The first one is that many graduates of four-year colleges are finding that an MBA degree does not guarantee a plush job on Wall Street or in other financial districts of major American cities. Many of the entry-level management jobs are for students graduating with Master of Arts degrees in English and the humanities as well as those holding MBA degrees. Students have asked the question, “Is an MBA degree really what I need to be best prepared for getting a good job?” The second major factor has been the cutting of American payrolls and the lower number of entry-level jobs being offered. Business needs are changing, and MBA schools are struggling to meet the new demands.Which of the following descriptions most likely applies to Wall Street?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 458 lượt xem 6 năm trước
Đề thi thử THPT quốc gia năm 2019 môn tiếng anh chuẩn cấu trúc (Đề số 6)

Read the following passage and mark A, B, C, or D to indicate the correct answer to each of the blanks.           Everyone needs a home where they feel sheltered and safe. Today we live in modern flats and houses, (36) ___________ have air-conditioning to keep us cool, and heating to keep us warm. There is electricity for lighting and supplies of gas or oil for the heating. Hot and cold water (37) ___________ from the taps and dirty water disappears (38) ___________ the drains. Many of our homes have balconies or gardens. In the past, people made their homes from materials that they found nearby. When we look at different houses we can tell how old they are from the materials used and the way they were built. It was different long (39) ___________ people did not have water in their homes and there were no electric lights. To keep warm, they sometimes made (40) ___________ inside their homes. With a fire started they could cook their food and heat water.Điền vào số (36)

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1.9 K lượt xem 6 năm trước
KỲ THI THỬ THPT QUỐC GIA NĂM 2019 MÔN TIẾNG ANH(P19)

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 After two decades of growing student enrollments and economic prosperity, business schools in the United States have started to face harder times. Only Harvard’s MBA School has shown a substantial increase in enrollments in recent years. Both Princeton and Stanford have seen decreases in their enrollments. Since 1990, the number of people receiving Masters in Business Administration (MBA) degrees, has dropped about 3 percent to 75,000, and the trend of lower enrollment rates is expected to continue.   There are two factors causing this decrease in students seeking an MBA degree. The first one is that many graduates of four-year colleges are finding that an MBA degree does not guarantee a plush job on Wall Street or in other financial districts of major American cities. Many of the entry-level management jobs are for students graduating with Master of Arts degrees in English and the humanities as well as those holding MBA degrees. Students have asked the question, “Is an MBA degree really what I need to be best prepared for getting a good job?” The second major factor has been the cutting of American payrolls and the lower number of entry-level jobs being offered. Business needs are changing, and MBA schools are struggling to meet the new demands.As used in the second paragraph, the word “seeking” could best be replaced by which of the following?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 389 lượt xem 6 năm trước
PHÂN DẠNG CÂU HỎI VÀ VÍ DỤ MINH HỌA

Hãy cho biết những chất nào sau đây có khi hiđro hóa cho cùng sản phẩm?

Hóa học Lớp 12
Xem chi tiết 5.6 K lượt xem 6 năm trước
Đề thi thử THPT quốc gia năm 2019 môn tiếng anh chuẩn cấu trúc (Đề số 6)

Mark the letter A, B, C or D in your answer sheet to indicate the underlined part that needs correction in each of the following questions. Only when I am hungry I like eating rice and fish.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 8.4 K lượt xem 6 năm trước
KỲ THI THỬ THPT QUỐC GIA NĂM 2019 MÔN TIẾNG ANH(P19)

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 After two decades of growing student enrollments and economic prosperity, business schools in the United States have started to face harder times. Only Harvard’s MBA School has shown a substantial increase in enrollments in recent years. Both Princeton and Stanford have seen decreases in their enrollments. Since 1990, the number of people receiving Masters in Business Administration (MBA) degrees, has dropped about 3 percent to 75,000, and the trend of lower enrollment rates is expected to continue.   There are two factors causing this decrease in students seeking an MBA degree. The first one is that many graduates of four-year colleges are finding that an MBA degree does not guarantee a plush job on Wall Street or in other financial districts of major American cities. Many of the entry-level management jobs are for students graduating with Master of Arts degrees in English and the humanities as well as those holding MBA degrees. Students have asked the question, “Is an MBA degree really what I need to be best prepared for getting a good job?” The second major factor has been the cutting of American payrolls and the lower number of entry-level jobs being offered. Business needs are changing, and MBA schools are struggling to meet the new demands.The phrase “trend of ” in the first paragraph is closest in meaning to which of the following?

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 1 K lượt xem 6 năm trước
Đề thi thử THPT quốc gia năm 2019 môn tiếng anh chuẩn cấu trúc (Đề số 6)

Mark the letter A, B, C or D in your answer sheet to indicate the underlined part that needs correction in each of the following questions. It was suggested that your father gave up smoking for the sake himself.

Tiếng Anh Tốt nghiệp THPT
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KỲ THI THỬ THPT QUỐC GIA NĂM 2019 MÔN TIẾNG ANH(P19)

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 After two decades of growing student enrollments and economic prosperity, business schools in the United States have started to face harder times. Only Harvard’s MBA School has shown a substantial increase in enrollments in recent years. Both Princeton and Stanford have seen decreases in their enrollments. Since 1990, the number of people receiving Masters in Business Administration (MBA) degrees, has dropped about 3 percent to 75,000, and the trend of lower enrollment rates is expected to continue.   There are two factors causing this decrease in students seeking an MBA degree. The first one is that many graduates of four-year colleges are finding that an MBA degree does not guarantee a plush job on Wall Street or in other financial districts of major American cities. Many of the entry-level management jobs are for students graduating with Master of Arts degrees in English and the humanities as well as those holding MBA degrees. Students have asked the question, “Is an MBA degree really what I need to be best prepared for getting a good job?” The second major factor has been the cutting of American payrolls and the lower number of entry-level jobs being offered. Business needs are changing, and MBA schools are struggling to meet the new demands.Which of the following business schools has NOT shown a decrease in enrollment?

Tiếng Anh Tốt nghiệp THPT
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30 đề thi thử đề thi thử THPTQG môn Tiếng Anh có lời giải chi tiết (Đề số 28)

Proximity to the court house makes an offlce building more valuable.

Tiếng Anh Tốt nghiệp THPT
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Đề thi thử THPT quốc gia năm 2019 môn tiếng anh chuẩn cấu trúc (Đề số 6)

Mark the letter A, B, C or D in your answer sheet to indicate the underlined part that needs correction in each of the following questions. No one has known anything about my promotion, haven’t they

Tiếng Anh Tốt nghiệp THPT
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KỲ THI THỬ THPT QUỐC GIA NĂM 2019 MÔN TIẾNG ANH(P19)

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 After two decades of growing student enrollments and economic prosperity, business schools in the United States have started to face harder times. Only Harvard’s MBA School has shown a substantial increase in enrollments in recent years. Both Princeton and Stanford have seen decreases in their enrollments. Since 1990, the number of people receiving Masters in Business Administration (MBA) degrees, has dropped about 3 percent to 75,000, and the trend of lower enrollment rates is expected to continue.   There are two factors causing this decrease in students seeking an MBA degree. The first one is that many graduates of four-year colleges are finding that an MBA degree does not guarantee a plush job on Wall Street or in other financial districts of major American cities. Many of the entry-level management jobs are for students graduating with Master of Arts degrees in English and the humanities as well as those holding MBA degrees. Students have asked the question, “Is an MBA degree really what I need to be best prepared for getting a good job?” The second major factor has been the cutting of American payrolls and the lower number of entry-level jobs being offered. Business needs are changing, and MBA schools are struggling to meet the new demands.The word “prosperity” in the first paragraph could best be replaced by_________.

Tiếng Anh Tốt nghiệp THPT
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30 đề thi thử đề thi thử THPTQG môn Tiếng Anh có lời giải chi tiết (Đề số 28)

Boys’ Clubs do not deprive poor children of the opportunity to participate in sports.

Tiếng Anh Tốt nghiệp THPT
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Đề thi thử THPT quốc gia năm 2019 môn tiếng anh chuẩn cấu trúc (Đề số 6)

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. Although he was very tired, he agreed to help me with my homework.

Tiếng Anh Tốt nghiệp THPT
Xem chi tiết 77.1 K lượt xem 6 năm trước
KỲ THI THỬ THPT QUỐC GIA NĂM 2019 MÔN TIẾNG ANH(P19)

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 After two decades of growing student enrollments and economic prosperity, business schools in the United States have started to face harder times. Only Harvard’s MBA School has shown a substantial increase in enrollments in recent years. Both Princeton and Stanford have seen decreases in their enrollments. Since 1990, the number of people receiving Masters in Business Administration (MBA) degrees, has dropped about 3 percent to 75,000, and the trend of lower enrollment rates is expected to continue.   There are two factors causing this decrease in students seeking an MBA degree. The first one is that many graduates of four-year colleges are finding that an MBA degree does not guarantee a plush job on Wall Street or in other financial districts of major American cities. Many of the entry-level management jobs are for students graduating with Master of Arts degrees in English and the humanities as well as those holding MBA degrees. Students have asked the question, “Is an MBA degree really what I need to be best prepared for getting a good job?” The second major factor has been the cutting of American payrolls and the lower number of entry-level jobs being offered. Business needs are changing, and MBA schools are struggling to meet the new demands.The phrase “two decades” in the first paragraph refers to a period of_________.

Tiếng Anh Tốt nghiệp THPT
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30 đề thi thử đề thi thử THPTQG môn Tiếng Anh có lời giải chi tiết (Đề số 28)

In the Navajo household, grandparents and other relatives play indispensable roles in raising the children.

Tiếng Anh Tốt nghiệp THPT
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Đề thi thử THPT quốc gia năm 2019 môn tiếng anh chuẩn cấu trúc (Đề số 6)

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 don’t really like the car. Mary has just bought it.

Tiếng Anh Tốt nghiệp THPT
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KỲ THI THỬ THPT QUỐC GIA NĂM 2019 MÔN TIẾNG ANH(P19)

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 After two decades of growing student enrollments and economic prosperity, business schools in the United States have started to face harder times. Only Harvard’s MBA School has shown a substantial increase in enrollments in recent years. Both Princeton and Stanford have seen decreases in their enrollments. Since 1990, the number of people receiving Masters in Business Administration (MBA) degrees, has dropped about 3 percent to 75,000, and the trend of lower enrollment rates is expected to continue.   There are two factors causing this decrease in students seeking an MBA degree. The first one is that many graduates of four-year colleges are finding that an MBA degree does not guarantee a plush job on Wall Street or in other financial districts of major American cities. Many of the entry-level management jobs are for students graduating with Master of Arts degrees in English and the humanities as well as those holding MBA degrees. Students have asked the question, “Is an MBA degree really what I need to be best prepared for getting a good job?” The second major factor has been the cutting of American payrolls and the lower number of entry-level jobs being offered. Business needs are changing, and MBA schools are struggling to meet the new demands.What is the main focus of this passage?      

Tiếng Anh Tốt nghiệp THPT
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30 đề thi thử đề thi thử THPTQG môn Tiếng Anh có lời giải chi tiết (Đề số 28)

Ice Age fossils from the La Brea tar pits in Los Angeles are now on display in the Natural History Museum in Los Angeles County.

Tiếng Anh Tốt nghiệp THPT
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Đề thi thử THPT quốc gia năm 2019 môn tiếng anh chuẩn cấu trúc (Đề số 6)

Mark the letter A, B, C or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions. Their classmates are writing letters of acceptance.

Tiếng Anh Tốt nghiệp THPT
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HƯỚNG DẪN GIẢI CÁC BÀI TẬP HAY VÀ KHÓ TRONG ĐỀ THI THPT QUỐC GIA NĂM 2016

Đun nóng 48,2 gam hỗn hợp X gồm KMnO4 và KClO3, sau một thời gian thu được 43,4 gam hỗn hợp chất rắn Y. Cho Y tác dụng hoàn toàn với dung dịch HCl đặc, sau phản ứng thu được 15,12 lít Cl2 (đktc) và dung dịch gồm MnCl2, KCl và HCl dư. Số mol HCl phản ứng là:

Hóa học Lớp 12
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KỲ THI THỬ THPT QUỐC GIA NĂM 2019 MÔN TIẾNG ANH(P19)

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. Many ants forage across the countryside in large numbers and undertake mass migrations; these activities proceed because one ant lays a trail on the ground for the others to follow. As a worker ant returns home after finding a source of food, it marks the route by intermittently touching its stinger on the ground and depositing a tiny amount of trail pheromone - a mixture of chemicals that delivers diverse messages as the context changes. These trails incorporate no directional information and may be followed by other ants in either direction.Unlike some other messages, such as the one arising from a dead ant, a food trail has to be kept secret from members of other species. It is not surprising then that ant species use a wide variety of compounds as trail pheromones. Ants can be extremely sensitive to these signals. Investigators working with the trail pheromone of the leafcutter ant Attatexana calculated that one milligram of this substance would suffice to lead a column of ants three times around Earth.The vapor of the evaporating pheromone over the trail guides an ant along the way, and the ant detects this signal with receptors in its antennae. A trail pheromone will evaporate to furnish the highest concentration of vapor right over the trail, in what is called a vapor space. In following the trail, the ant moves to the right and left, oscillating from side to side across the line of the trail itself, bringing first one and then the other antenna into the vapor space. As the ant moves to the right, its left antenna arrives in the vapor space. The signal it receives causes it to swing to the left, and the ant then pursues this new course until its right antenna reaches the vapor space. It then swings back to the right, and so weaves back and forth down the trail.According to the passage, the highest amount of pheromone vapor is found________.    

Tiếng Anh Tốt nghiệp THPT
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30 đề thi thử đề thi thử THPTQG môn Tiếng Anh có lời giải chi tiết (Đề số 28)

A nurse practioner has training in a specialized area of medicine.

Tiếng Anh Tốt nghiệp THPT
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30 đề thi thử đề thi thử THPTQG môn Tiếng Anh có lời giải chi tiết (Đề số 28)

You should bear in mind that children of tender years are notoriously___________.

Tiếng Anh Tốt nghiệp THPT
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Đề thi thử THPT quốc gia năm 2019 môn tiếng anh chuẩn cấu trúc (Đề số 6)

Mark the letter A, B, C or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions. She performed all her duties conscientiously . She didn’t give enough care to her work.

Tiếng Anh Tốt nghiệp THPT
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30 đề thi thử đề thi thử THPTQG môn Tiếng Anh có lời giải chi tiết (Đề số 28)

You can’t just bury your___________ in the sand and hope that this problem goes away.

Tiếng Anh Tốt nghiệp THPT
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Đề thi thử THPT quốc gia năm 2019 môn tiếng anh chuẩn cấu trúc (Đề số 6)

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.           Although speech is the most advanced form of communication, there are many ways of communicating without using speech. Signals, signs, symbols, and gestures may be found in every known culture. The basic function of signal is to impinge upon the environment in such a way that it attracts attention, as, for example, the dots and dashes of a telegraph circuit. Coded to refer to speech, the potential for communication is very great. Less adaptable to the codification of words, signs also contain meanings in and of themselves. A stop sign or a barber pole conveys meaning quickly and conveniently. Symbols are more difficult to describe than either signals or signs because of their intricate relationship with the receiver's cultural perceptions. In some cultures, applauding in a theater provides performers with an auditory symbol of approval. Gestures such as waving and handshaking also communicate certain cultural messages.          Although signals, signs, symbols, and gestures are very useful, they do have a major disadvantage in communication. They usually do not allow ideas to be shared without the sender being directly adjacent to the receiver. Without an exchange of ideas, interaction comes to a halt. As a result, means of communication intended to be used for long distances and extended periods must be based upon speech. Radio, television, and the telephone are only a fewIt may be concluded from the passage that _______.

Tiếng Anh Tốt nghiệp THPT
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30 đề thi thử đề thi thử THPTQG môn Tiếng Anh có lời giải chi tiết (Đề số 28)

“Are you coming to the party?” - “___________”

Tiếng Anh Tốt nghiệp THPT
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KỲ THI THỬ THPT QUỐC GIA NĂM 2019 MÔN TIẾNG ANH(P19)

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. Many ants forage across the countryside in large numbers and undertake mass migrations; these activities proceed because one ant lays a trail on the ground for the others to follow. As a worker ant returns home after finding a source of food, it marks the route by intermittently touching its stinger on the ground and depositing a tiny amount of trail pheromone - a mixture of chemicals that delivers diverse messages as the context changes. These trails incorporate no directional information and may be followed by other ants in either direction.Unlike some other messages, such as the one arising from a dead ant, a food trail has to be kept secret from members of other species. It is not surprising then that ant species use a wide variety of compounds as trail pheromones. Ants can be extremely sensitive to these signals. Investigators working with the trail pheromone of the leafcutter ant Attatexana calculated that one milligram of this substance would suffice to lead a column of ants three times around Earth.The vapor of the evaporating pheromone over the trail guides an ant along the way, and the ant detects this signal with receptors in its antennae. A trail pheromone will evaporate to furnish the highest concentration of vapor right over the trail, in what is called a vapor space. In following the trail, the ant moves to the right and left, oscillating from side to side across the line of the trail itself, bringing first one and then the other antenna into the vapor space. As the ant moves to the right, its left antenna arrives in the vapor space. The signal it receives causes it to swing to the left, and the ant then pursues this new course until its right antenna reaches the vapor space. It then swings back to the right, and so weaves back and forth down the trail.The word "oscillating" is closest in meaning to________.

Tiếng Anh Tốt nghiệp THPT
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