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6\(\sqrt{\dfrac{1}{2}}+\dfrac{2}{\sqrt{2}}-\sqrt{50}\)

\(\dfrac{2+\sqrt{3}}{2-\sqrt{3}}\)\(-\)\(\dfrac{2-\sqrt{3}}{2+\sqrt{3}}\)
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\(2\sqrt{3}\left(\sqrt{2}-3\right)+\left(2-\sqrt{3}\right)^2+6\sqrt{3}\)
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\(2\sqrt{2}-\sqrt{75}+\sqrt{\left(1-\sqrt{3}\right)^2}\)
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27-30. 𝙐𝙨𝙚 𝙩𝙝𝙚 𝙜𝙞𝙫𝙚𝙣 𝙬𝙤𝙧𝙙𝙨 𝙩𝙤 𝙬𝙧𝙞𝙩𝙚 𝙩𝙝𝙚 𝙘𝙤𝙢𝙥𝙡𝙚𝙩𝙚 𝙨𝙚𝙣𝙩𝙚𝙣𝙘𝙚𝙨.Question 27. He/ used/ play/ football/ for/ the local team,/ but/ he/ too/ old/ now. *Câu trả lời của bạn   Question 28. She/ travel/ over/ the world/ if/ she/ be/ rich. *Câu trả lời của bạn   Question 29. Beth/ wish/ she/ can/ stay/ Cambridge/ forever. *Câu trả lời của bạn    Question 30. Every country/ its own customs/ technological changes. *
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22-26. 𝙍𝙚𝙖𝙙 𝙩𝙝𝙚 𝙛𝙤𝙡𝙡𝙤𝙬𝙞𝙣𝙜 𝙩𝙚𝙭𝙩 𝙖𝙣𝙙 𝙘𝙝𝙤𝙤𝙨𝙚 𝙩𝙝𝙚 𝙤𝙥𝙩𝙞𝙤𝙣 𝘼, 𝘽, 𝘾 𝙤𝙧 𝘿 𝙩𝙤 𝙘𝙤𝙢𝙥𝙡𝙚𝙩𝙚 𝙩𝙝𝙚 𝙛𝙤𝙡𝙡𝙤𝙬𝙞𝙣𝙜 𝙨𝙩𝙖𝙩𝙚𝙢𝙚𝙣𝙩𝙨.In comparison with other developing countries, Vietnam's population enjoys a relatively high standard of education. In the past, Vietnam's educational system was affected by many cultures, of which the Chinese and French had most significant influence.
The Imperial Academy - the first university in Vietnam - was built in 1076 under Emperor Ly Nhan Tong for the education of sons of royalty and other high-ranking officials. In 1252, the college was opened to students from various backgrounds besides royal or official ones.
Before the French came, the old-type Mandarin system administered Vietnam for approximately 2,000 years. As the French took over the government's administration, it was converted from a Confucian into a Western-oriented one.
In order to participate in the service under the French rule, the Vietnamese had to convert to the French system and were required to know the French language. In addition, they had to have a good facility with the new version of their language instead of the traditional Chinese characters which had been in use for hundreds of years.
At the beginning of 1900, the whole system was revised. An educational system of three levels was established; elementary, primary, and secondary education. In addition, the use of the national language (Quoc Ngu) was added to the curriculum. Emphasis was placed on rote learning, class discipline, and other French educational methods. Several new schools and colleges were established. Accordingly, French became the second language of much importance to the students.Question 22. When the French took control of Vietnamese education, they _______. *   A. took over the government's administration   B. converted the French system into the Confucian one   C. kept the old-type Mandarin system and the French education   D. made Vietnamese people follow a Western-oriented educationQuestion 23. We can infer from the passage that in the French education system in Vietnam, _______. *   A. the Confucian system was banned in the beginning   B. the traditional Chinese characters have been widely used   C. the national language is the first language and French is the second one   D. students with different academic levels could attend the Imperial Academy since 1252Question 24. The phrase "role learning" in paragraph 5 is closest in meaning to _______. *   A. learning something to repeat it from memory   B. learning the national language in three education levels   C. learning class discipline   D. learning the Mandarin Chinese for a whileQuestion 25. In the past, Vietnam enjoyed a relatively high standard of education with _______. *   A. the education of sons of royalty   B. the establishment of the Imperial Academy   C. the effects of the Chinese culture   D. the reign of Emperor Ly Nhan TongQuestion 26. All of the following are true about the education in Vietnam under the French rule EXCEPT that _______. *   A. most students paid much attention to French   B. several new schools and colleges were established   C. the system had three levels   D. students only used the national language at home
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6-16. 𝘾𝙝𝙤𝙤𝙨𝙚 𝙩𝙝𝙚 𝙡𝙚𝙩𝙩𝙚𝙧 𝘼, 𝘽, 𝘾 𝙤𝙧 𝘿 𝙩𝙤 𝙞𝙣𝙙𝙞𝙘𝙖𝙩𝙚 𝙩𝙝𝙚 𝙬𝙤𝙧𝙙(𝙨) 𝙩𝙝𝙖𝙩 𝙗𝙚𝙨𝙩 𝙛𝙞𝙩𝙨 𝙩𝙝𝙚 𝙜𝙖𝙥 𝙞𝙣 𝙚𝙖𝙘𝙝 𝙤𝙛 𝙩𝙝𝙚 𝙛𝙤𝙡𝙡𝙤𝙬𝙞𝙣𝙜 𝙨𝙚𝙣𝙩𝙚𝙣𝙘𝙚𝙨.Question 6. Minh wishes he _______ English perfectly well. *   A. spoke   B. speaks   C. is speaking   D. has spokenQuestion 7. Huyen My _______ a teddy bear, but she doesn't have one now. *   A. used to have   B. used to having   C. was use to having   D. was used to haveQuestion 8. Many people in our village are still _______. They can't read or write. *   A. unhealthy   B. traditional   C. creative   S. illiterateQuestion 9. The machine is not running today. It is _______ order. *   A. to   B. out   C. out of   D. inQuestion 10. Traditional games _______ an important role in children's intellectual life. *   A. play   B. take   C. bring   D. makeQuestion 11. He usually _______ himself by playing hike and seek or flying kites. *   A. entertains   B. behave   C. collect   D. imagineQuestion 12. Miss Diep is in the _______ of writing in her dairy every day. *   A. custom   B. practice   C. habit   D. generationQuestion 13. Although spinning tops are among the simplest of toys, children _______ it one of the most vivid and exciting games. *   A. make   B. allow   C. let   D. keepQuestion 14. The little girl started to _______ each part of the story. *   A. go out   B. act out   C. play out   D. cry outQuestion 15. When we went back to the bookstore, the bookseller _______ the book we wanted. *   A. sold   B. had sold   C. sells   D. has soldQuestion 16. Lan wishes there _______ a smart board in her classroom. *   A. was   B. were   C. is   D. had been
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1-3. 𝘾𝙝𝙤𝙤𝙨𝙚 𝙩𝙝𝙚 𝙬𝙤𝙧𝙙 𝙬𝙝𝙤𝙨𝙚 𝙪𝙣𝙙𝙚𝙧𝙡𝙞𝙣𝙚𝙙 𝙥𝙖𝙧𝙩 𝙞𝙨 𝙥𝙧𝙤𝙣𝙤𝙪𝙣𝙘𝙚𝙙 𝙙𝙞𝙛𝙛𝙚𝙧𝙚𝙣𝙩𝙡𝙮 𝙛𝙧𝙤𝙢 𝙩𝙝𝙖𝙩 𝙤𝙛 𝙩𝙝𝙚 𝙤𝙩𝙝𝙚𝙧𝙨 𝙞𝙣 𝙚𝙖𝙘𝙝 𝙜𝙧𝙤𝙪𝙥.Question 1. *   A. fle̲xible   B. fre̲sh   C. spe̲cific   D. e̲ntertainQuestion 2. *   A. s̲ilent   B. s̲ingular   C. s̲ignature   D. s̲ureQuestion 3. *   A. invent̲i̲o̲n̲   B. organizat̲i̲o̲n̲   C. nat̲i̲o̲n̲   D. quest̲i̲o̲n̲
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Chủ đề:

Bài 2. Dân số và sự gia tăng dân số

Câu hỏi:

Hãy nêu cong thức tính mật độ dân số ? Năm 2014 MĐ DS của VN là ... ng / km^2 , của thế giới .. ng /km ^2 Năm 2019 MĐ DS của VN là .. ng/km ^2, của thế giới .. ng /km ^2 Có nhận xét gì về mật độ dân số nước ta ? (Sgk trang 10,11 địa 9)
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\(\sqrt{2x+5}-\sqrt{1-x}\)

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