Cho tam giác abc có 3 đường phân giác AD, BE, CF. Chứng minh $\frac{AF}{AE}$ . $\frac{BD}{BF}$ . $\frac{CE}{CD}$ = 1

Tìm m để -1<=(x^(2)+5x+m)/(2x^(2)-3x+2)<7 có tập nghiệm S=R

$\lim_{x \to -\infty} \frac{x+2}{1-2x}$=-$\frac{a}{b}$ (a,b là hai số tự nhiên và $\frac{a}{b}$ tối giản) giá trị của a-b bằng?

36. Her parents are pleased with her good ............................. ( behave ) 37. His ...................... of some words is not correct. ( pronounce ) 38. My teacher is proud of my ........................ in my study. ( improve ) 39. I can do all the exercises ........................... ( easy ) 40. The Boy Scouts of America is a youth .................................. ( organize ) 41. The form must have the ...................... of the writer. ( sign ) 42. Our teacher always gives us .................... so that we can work hard. ( encourage) 43. If you want to join the club, please fill in this .................... form. ( apply ) 44. Who is the .................. of this car ? ( own ) 45. There are not enough doctors in this ..................... ( neighbor)

Mọi người ơi giúp em với tối nay em nộp rồi

Giúp mình với bài này bồi dưỡng hs giỏi lý

22. Be careful to cover the ............... sockets for the safety of the children. ( electric ) 23. The music is beautiful. It makes the movie ......................... ( forget ) 24. In order to save the ......................., remember to turn off the lights before going out. ( electric ) 25. The boy fell off his bicycle and ........................... broke his arm. ( fortunate ) 26. His broken arm was still ............................. ( pain). 27. A fairy appeared and ............................... changed her old clothes. ( magic ) 28. The tiger wanted to see the farmer’s .............................. ( wise ). 29. The police came ................................ . ( immediate ) 30. Our life is much better with the help of modern .......................... ( equip ) 31. In the story, the prince got ....................... to a poor girl. ( marry ). 32. he is an .......................... student. ( excellence ) 33. Thank you for your ............................... party. ( enjoy ) 34. Remember to check for ........... mistakes before handing in your writing. ( spell ) 35. .................. in sport competitions is open to everyone in our school. ( paticipate )

Viết đoạn văn nêu cảm nhận của em về cuộc sống con người vùng Cà Mau, có sử dụng ít nhất hai từ láy?( từ 7 10 câu) giúp mình vs

Giup mk giải cac bc ra r ms chon d/a nha camon b nhieu

PHONETICS I. Choose the word that has the underlined part pronounced diffrently (0.6p) 1. A. played B. cleaned C. cooked D. lived 2. A. breakfast B. bread C. head D. great 3. A. book B. food C. foot D. good II. Choose the words whose stress parttern is different from the others (0.4p) 1. A. convinent B. animal C. television D. volleyball 2. A. destroy B. pollute C. behind D.boring LEXICO- GRAMMAR V. Choose the best option for each sentence. Write letter A, B, C or D in the box. (7pt) 1. My sister feels ………… again after her illness. A. strongly B. strong C. is strong D. strength 2. He ………… arrives home on time. A. not B. never C. does not D. do not 3. Do you think Ha Noi is...................in Viet Nam? A. bigger B. biggest C. the most biggest D.the biggest 4. My brother wants a good pair of shoes because he often goes ………… A. jogging B. running C. swimming D. sailing 5. In spring, we often help our Mum ………… the housework. A. for B. about C. on D. with 6. The weather here often ………… quickly. It’s difficult to forecast. A. change B. changes C. is changing D. is going to change 7. “…………… are we going to travel there?” - “Let’s call a taxi.” A. What B. Where C. How D. Why 8. What about ………… a cup of coffee? A. having B. have C. you have D. do you have 9. Your house is very large, but his house is even larger ………… your house. A. to B. than C. as D. like 10. Let him ………… it himself A. to do B. doing C. does D. do 11. My aunt wants to have some...................because she has a headache. A. painkillers B. walkingboots C. suncreams D. sleeping bag 12. Nam and I ………… table tennis at present. A. am playing B. is playing C. are playing D. playing 13. Do you know how many floors …………. in your school? A. there are B. there has C. have there D. are there 14. He has worked in this company ...........6 years. A. for B. ago C. in D. since 15. Susan is the ……………… of the two girls. A prettiest B. prettier C. pretty D. more pretty. 16. My brother, Minh ………………. English on Monday and Friday. A. not have B. don’t have C. isn’t have D. doesn’t have 17. Hoang’s father gets up at 7.00 and eats ……………… A. a big breakfast B. the big breakfast C. big breakfast D. a breakfast big 18. The boat trip was the...............experience of my life. A. good B. best C. better D. well 19. We …………… to a new house tomorrow. A. will move B. are moving C. move D. are going to move 20. Tokyo has a …………… of 12 million. A. people B. population C. popular D. number 21. I would like …………… a new dictionary but I don’t have enough money. A. buy B. to buy C. buys D. buying 22. I hope the …………… can repair our car quickly. A. mechanic B. architect C. reporter D. dentist 23. I don’t have …………. apples but I have …………. oranges. A. any- any B. some- any C. some- some D. any- some 24. This fridge is …………… than that one. A. more modern B. most modern C. moderner D. modernest 25. What time …………… on television? A. is the news B. are the news C. is news D. are news 26. Whose book is this, his or ……………? A. she B. hers C. her D. him 27. There is ………… university and …………… big stadium in our city. A. a- a B. an- a C. an- the D. a- an 28. On the table are vegetables, bread and two large …………… A. bowl of soup B. bowl of soups C. bowls of soups D. bowls of soup 29. It ……………. heavily, we can’t do anything until it stops. A. rain B. rains C. is raining D. to rain 30. They like ……………. at weekends. A. go swimming B. going to swim C. go to swim D. going swimming