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26 tháng 2 2022

Cho tam giác ABC cân (AB=AC), góc A>90 . Vẽ đường trung trực của các cạnh AB,AC cắt các cạnh này tại M và N và cắt BC lần lượt tại P và Q .a)các tam giác APB và tam giác AQC là tam giác gì.b) gọi O là giao điểm của MP và QN . Chứng minh tam giác AMO=tam giác ANO c) chứng minh O là trực tâm của hai tam giác APB và AQC

26 tháng 2 2022

bạn ơi, đây là TA chứ đâu có phải Toán đâu....

4 tháng 9 2017

Choose the correct answer.

  1. It's becoming (more and more hard/harder and harder)to secure a good job nowadays.score
  2. My sister is probably (the more/the most)important person in my life.score
  3. We find that we have (far less/lesser)time to relax now that we have children.score
  4. Out of the two of them, she was (a bit/far and away)the better singer.score
  5. The (worse/worst)thing by far about being unemployed is having no money.score
  6. Tom and Margot are (easily/easiest)the best students in my class.score
  7. My exam results are only (marginally/quite)worse than yours.score
  8. The slower you work, the (longest/longer)the job will take you to finish.
8 tháng 9 2017

Choose the correct answer.

  1. Marco has kindly (agreed/agreed to)help me with my presentation.score
  2. She threatened (stopping/to stop)seeing him.score
  3. The press (accused the police of/accused the police)overreacting during the demonstration.score
  4. Jamie denied (copying/of copying)his partner's essay.score
  5. They (congratulated Susan on winning/congratulated Susan winning)the singing contest.score
  6. Mum (insisted to/insisted that)we should go for a meal to celebrate.score
  7. I (begged him not to/begged to him not)leave but he refused to listen to me.score
  8. The assistant said the watch would be expensive to repair and recommended (to buy/buying)a new one instead.score
8 tháng 9 2017

Choose the correct answer.

  1. Marco has kindly (agreed/agreed to)help me with my presentation.score
  2. She threatened (stopping/to stop)seeing him.score
  3. The press (accused the police of/accused the police)overreacting during the demonstration.score
  4. Jamie denied (copying/of copying)his partner's essay.score
  5. They (congratulated Susan on winning/congratulated Susan winning)the singing contest.score
  6. Mum (insisted to/insisted that)we should go for a meal to celebrate.score
  7. I (begged him not to/begged to him not)leave but he refused to listen to me.score
  8. The assistant said the watch would be expensive to repair and recommended (to buy/buying)a new
    one instead.score
IX. Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions. GIẢI THÍCH ĐÁP ÁN DÙM NHAUnlike life in the countryside which is often considered to be simple and traditional, life in the city is modern and complicated. People, from different regions, move to the cities in the secretaries of having a better life for them and their children. The inhabitants in city work as secretaries, businessmen, teachers, government workers,...
Đọc tiếp

IX. Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions. GIẢI THÍCH ĐÁP ÁN DÙM NHA
Unlike life in the countryside which is often considered to be simple and traditional, life in the city is modern and complicated. People, from different regions, move to the cities in the secretaries of having a better life for them and their children. The inhabitants in city work as secretaries, businessmen, teachers, government workers, factory workers and even street vendors or construction workers.
The high cost of living requires city dwellers, especially someone with low income, to work harder or to take a part-time job. For many people, an ordinary day starts as usual by setting up in the early morning to do exercise in public parks. Preparing for a full day of working and studying, then travelling along crowed boulevards or narrow streets filled with motor scooters and returning home after a busy day. They usually live in large houses, or high-rise apartment blocks or even in a small rental room equipped with modern facilities, like the Internet, telephone, television and so on. Industrialization and modernization as well as
global integration have big impact on lifestyle in the cities. The most noticeable impact is the Western style of clothes. The “ao dai” - Vietnamese traditional clothes are no longer regularly worn in Vietnamese women’s daily life. Instead, jeans, T-shirts and fashionable clothes are widely preferred.
28 Industrialization and modernization may lead to industrialization and modernization may lead to _________.
A. some changes in lifestyles B. global integration
C. the fact that women no longer wear Ao Dai
D. the disappearance of Western-styled clothes
29. The most important reason why people move to the city is that _________.
A. to have busy days
B. to look for a complicated life C. to look for a better life D. to take part-time jobs
30. We can infer from the passage that _____.

A. there is a big gap between the rich and the poor in the city.
B. people leave the countryside because life there is simple

C. most of the urban dwellers have low income
D. people do morning exercise in public parks because they have much free time
31. According to the passage, the city life can offer city dwellers all of the following things EXCEPT _________. A. a variety of jobs in different fields B. modern facilities C. the Internet
D. friendly communication with neighbours
32. The word “impact” in paragraph 2 is closest in meaning to ____.A. situation
B. effect C. force D. action

1
16 tháng 12 2023

28 Industrialization and modernization may lead to industrialization and modernization may lead to _________. A. some changes in lifestyles B. global integration
C. the fact that women no longer wear Ao Dai D. the disappearance of Western-styled clothes
29. The most important reason why people move to the city is that _________.
A. to have busy days B. to look for a complicated life C. to look for a better life D. to take part-time jobs
30. We can infer from the passage that _____.

A. there is a big gap between the rich and the poor in the city.
B. people leave the countryside because life there is simple

C. most of the urban dwellers have low income
D. people do morning exercise in public parks because they have much free time
31. According to the passage, the city life can offer city dwellers all of the following things EXCEPT _________. A. a variety of jobs in different fields B. modern facilities C. the Internet
D. friendly communication with neighbours
32. The word “impact” in paragraph 2 is closest in meaning to ____.A. situation B. effect C. force D. action

IX. Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions. GIẢI THÍCH GIÚP MÌNH NỮA NHÉEvery year, students in many countries learn English. Some of these students are young children. Others are teenagers. Many are adults. Some learn at school, others study by themselves. A few learn English just by hearing the language in films, on television, in the office or among their friends. But not many are lucky enough to do that....
Đọc tiếp

IX. Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions. GIẢI THÍCH GIÚP MÌNH NỮA NHÉ

Every year, students in many countries learn English. Some of these students are young children. Others are teenagers. Many are adults. Some learn at school, others study by themselves. A few learn English just by hearing the language in films, on television, in the office or among their friends. But not many are lucky enough to do that. Most people must work hard to learn another language. Many boys and girls learn English at school because it is one of their subjects. They study their own language, mathematics, and English. In England, America, or Australia, many boys and girls study their native language, which is English, mathematics, and another language, perhaps French, or German or Spanish. Many adults learn English because it is useful for their work. Teenagers often learn English for their higher studies, because some of their books are in English at college or university. Others learn English because they want to read newspapers or magazines in English. 28. According to the writer ________.

A. only adults learn English B. no children like to learn English C. English is useful only for teenagers D. English is popular all over the world

29. Most people learn English by ________. A. watching videos only B. working hard on their lessons C. hearing the languages in the office D. talking with foreigners

30. Many boys and girls learn English because ________.

A. it is included in their study courses B. English can give them a job C. they are forced to learn it D. they have to study their own languages

31. In America or Australia many school children study ________.

A. English as a foreign language B. English and mathematics only C. such foreign languages as French, German, and Spams D. their own language and no foreign language

32. Many adults learn English because ________.

A. English is spoken in their office B. they want to go abroad C. most of their books are in English D. it helps them in their work

0
8 tháng 9 2017

Type the correct answer into the box.

back down off off on out over up

  1. My mother can't work __out__ (work out: hiểu được điều gì) how to use her new mobile phone.score
  2. Mark's enrolled on a course to brush __up__ (brush up: ôn lại) on his German.score
  3. The actor walked __off__ the stage and went back to his dressing room.score
  4. This information is important so make sure you write it __down__ (write sth down: viết thứ gì lên giấy).score
  5. My parents are always going __on__ (go on about: nói về thứ gì một cách dài dòng và tẻ nhạt) about my clothes and my friends.score
  6. This milk smells horrible, I think it's gone __off__ (go off: (đồ ăn) thiu).score
  7. We'll go __over__ (go over sth: xem xét thứ gì một cách chi tiết) your ideas and get back to you next week.score
  8. He's always borrowing money from me but he never pays it __back__ (pay back: trả tiền).score
IX. Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions. GIẢI THÍCH GIÚP MÌNH VS ẠDid you know that on average we forget about 80% of the medical information a doctor might give us? This fascinating information came to light as a result of a study carried out by Utrecht University. What is even more interesting is that almost half of what we think we remember is wrong. Why do you think this is? Well, its not as complicated...
Đọc tiếp

IX. Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions. GIẢI THÍCH GIÚP MÌNH VS Ạ

Did you know that on average we forget about 80% of the medical information a doctor might give us? This fascinating information came to light as a result of a study carried out by Utrecht University. What is even more interesting is that almost half of what we think we remember is wrong. Why do you think this is? Well, its not as complicated as you may think. You see, going to the doctor fills most people with anxiety and when we are really nervous and stressed we are more likely to focus on the diagnosis rather than the treatment. Therefore, we know what is wrong with as but have no idea what to do about it. Here are some good tips to keep in mind when seeing a doctor. Always write down any important information. What would be even better is, if your doctor agreed, to record your consultation. This way, you can replay the advice at home, where you are more likely to absorb it. If you believe the situation is serious or youre really worried, seek the help of a family member. Just ask them to accompany you to listen in. This way you can be absolutely sure about what the doctor has told you and avoid falling into the same trap that most people do.

28. According to the passage, the information doctors give us _________. A. is about 50% wrong B. is only 80% correct C. is mostly forgotten D. is usually not enough

29. The word complicated in the passage is opposite in meaning to _________. A. good B. quick C. short D. simple

30. The author says that when people consult a doctor, _________. A. they always believe that their situation is serious B. they are interested in knowing what they should do C. they only want to know what is wrong with them D. they usually have a family member with them

31. The word absorb in the passage is closest in meaning to _________. A. digest B. inhale C. swallow D. take in

32. The author suggests recording the consultant in order to _________. A. play it to your family members to get their opinions B. refer to it later to better understand your condition C. replay it to write down any important information D. use it as evidence against your doctor if necessary

1
16 tháng 6 2023

28c

Did you know that on average we forget about 80% of the medical information a doctor might give us?

29d

Complicated: Phức tạp >< Simple: Đơn giản

30c

You see, going to the doctor fills most people with anxiety and when we are really nervous and stressed we are more likely to focus on the diagnosis rather than the treatment.

31d

Absorb = Take in: Tiếp thu

32b(tham khảo c32)

Always write down any important information. What would be even better is, if your doctor agreed, to record your consultation. This way, you can replay the advice at home, where you are more likely to absorb it. If you believe the situation is serious or youre really worried, seek the help of a family member.

IX. Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions.GIẢI THÍCH ĐÁP ÁN DÙM MÍNH NHÉ The system of USA education starts with twelve years of primary and secondary; school education which the Americans have to follow. A secondary school (“high school”) diploma or certificate is a compulsory requirement for the student to be able to enter college, university, vocational, secretarial or other professional and technical...
Đọc tiếp

IX. Read the following passage and mark the letter A, B, C or D to indicate the correct answer to each of the questions.GIẢI THÍCH ĐÁP ÁN DÙM MÍNH NHÉ 
The system of USA education starts with twelve years of primary and secondary; school education which the Americans have to follow. A secondary school (“high school”) diploma or certificate is a compulsory requirement for the student to be able to enter college, university, vocational, secretarial or other professional and technical schools. American children who are around six years of age normally begin their learning at a primary school. It takes from five to six years to complete the primary schooling. After finishing the primary schooling, students will have to enter a secondary school where they may spend 6 or 7 year durations consisting of either two three-year programs, or a three-year and a four-year program. Schools at this level-are known as Middle School or Junior High School and High or Senior High School.
Completion of this stage is called Twelfth Grade. International students are advised to find out which level of education in their country corresponding to the twelfth grade in the USA.
After completing the twelfth grade, students are admitted to college or university for higher education. Study at a college or university leading to the Bachelor’s Degree is known as “undergraduate” education. Study beyond the Bachelor’s Degree is known as “graduate” school, or “postgraduate” education. Advanced or graduate degrees include law, medicine, M.B.A. (Master), and Ph.D. (doctorate) etc.
The USA has the highest number of educational institutions providing higher education than any other country. There are more than 3800 colleges and universities imparting degree programs. The size of USA higher educational institutions varies greatly, too, from colleges that enroll fewer than 1,000 students to large universities that enroll more than 50,000 students.
28. If a USA student wants to enter a vocational school, he/ she must _______.
A. have at least 12 years of secondary schooling. B. get a high school diploma
C. complete a senior high school without its certificate.

D. complete two four-year programs at secondary school.
29. Schools at secondary level consist of _______.
A. Middle Schools and High schools. B. Middle schools and Junior High schools.
C. High schools and Senior High schools. D. Junior and Senior schools.
30. According to the text, graduate students are those who _______.
A. graduated from a high school. B. are studying a college or a university.
C. are pursuing a Master or Doctorate program at university. D. graduated from a college or a university.
31. If you want to study a Master program, you _______.
A. must be a undergraduate student.              B. must get a Bachelor diploma.
C. must finish ‘graduate’ program.                 D. must complete a Bachelor program at university.
32. According to the text, which statement below is TRUE?
A. The USA has the best education in the world.
B. The number of the US. colleges and universities is higher than any other country.
C. International students whose level of education corresponds to the 12th grade in the USA
can apply for any programs in a USA university.
D. International students are advised to apply for a USA high school before for college.

1
17 tháng 11 2023

28. If a USA student wants to enter a vocational school, he/ she must _______.
A. have at least 12 years of secondary schooling. B. get a high school diploma
C. complete a senior high school without its certificate.

D. complete two four-year programs at secondary school.
29. Schools at secondary level consist of _______.
A. Middle Schools and High schools. B. Middle schools and Junior High schools.
C. High schools and Senior High schools. D. Junior and Senior schools.
30. According to the text, graduate students are those who _______.
A. graduated from a high school. B. are studying a college or a university.
C. are pursuing a Master or Doctorate program at university. D. graduated from a college or a university.
31. If you want to study a Master program, you _______.
A. must be a undergraduate student.              B. must get a Bachelor diploma.
C. must finish ‘graduate’ program.                 D. must complete a Bachelor program at university.
32. According to the text, which statement below is TRUE?
A. The USA has the best education in the world.
B. The number of the US. colleges and universities is higher than any other country.
C. International students whose level of education corresponds to the 12th grade in the USA
can apply for any programs in a USA university.

D. International students are advised to apply for a USA high school before for college.

8 tháng 9 2017

Choose the correct answer.

  1. What I don't understand (why she is/is why she)suddenly decided to leave.score
  2. Do you think (is it/it's)the children who are the problem, or their parents?score
  3. The band was terrible. (Never have we/Rarely we have)heard such a dreadful noise!score
  4. (The truth is/The question is)that Jamie's really lazy and he makes no effort.score
  5. (Only did she/Not only did she)win the race, but she also broke the world record.score
  6. It was John (what/who)forgot to bring the map.score
  7. I don't like Ali but (I do like/do I like)her sister.score
  8. (The stage walked onto/Onto the stage walked)two men holding guitars.score
8 tháng 9 2017

Choose the correct answer.

  1. What I don't understand (why she is/is why she)suddenly decided to leave.score
  2. Do you think (is it/it's)the children who are the problem, or their parents?score
  3. The band was terrible. (Never have we/Rarely we have)heard such a dreadful noise!score
  4. (The truth is/The question is)that Jamie's really lazy and he makes no effort.score
  5. (Only did she/Not only did she)win the race, but she also broke the world record.score
  6. It was John (what/who)forgot to bring the map.score
  7. I don't like Ali but (I do like/do I like)her sister.score
  8. (The stage walked onto/Onto the stage walked)two men holding guitars.score
26 tháng 9 2019

Đáp án: D

Giải thích: Mấu chốt của câu này là các em phải đọc hết đoạn cuối để suy ra cái mà tác giả muốn hướng tới: Con người phải đối mặt với sự lựa chọn khó khăn: sự sống của mình hay cứu lấy động vật.