Cho tập E={0,1,2,3,4,5,6,7} có thể lập bao nhiêu số tự nhiên có 5 chữ số sao cho: a) chữ số 1 có mặt đúng 2 lần, các chữ số khác có mặt ko quá 1 lần. b) chữ số 1 và 2 có mặt đúng 2 lần. c)các chữ số khác và chia hết cho 3. Mình cần gấp lắm ạ

Câu 26: This plant’s …. is high, so it attracts a lot of investment. A. production B. productivity C. products D. produce Câu 27: The ……. of this machine requires the latest techniques. A. production B. productivity C. products D. produce Câu 28: This energy - …. bulb is not cheap. A. save B. saved C. saving D. savoury Câu 29: The …. are requiring us to repair the machines. A. consume B. consumer C.consumption D. consumers Câu 30: Watching Korean films on TV is a time - …. activity. A. consume B. consumer C. consumption D. consuming Câu 31: Water …. is increasing this summer. A. consume B. consumer C. consumption D. consuming Câu 32: The …. of the model attracts us. A. efficiency B. effect C. efficient D. effectively Câu 33: They are working ….., so we are ….. A. effective, satisfactory B. effectively, satisfactory C. effectively, satisfied D. effective, satisfied Câu 34: Life always needs a lot of …... A. innovate B. innovator C. innovation D. B&C Câu 35: Why are you so …….. of his work? He's just doing his best. A. critic B. critical C. criticize D. criticism Câu 36: It's her ….. obligation to tell the police what she knows. A. immoral B. moral C.morality D. morally Câu 37: Tet is the most important ….. in Vietnam. A.celebrate B.celebration C.celebrating D. celebratory

People in cities all over the world shop in supermarkets. Who decides what you buy in the supermarket? Do you decide? Does the supermarket decide? When you enter the supermarket, you see shelves full of food. You walk in the aisles between the shelves. You push a shopping cart and put your food in it. You probably hear soft, slow music as you walk along the aisles. If you hear fast music, you walk quickly. The supermarket plays slow music. You walk slowly and have more time to buy things. Maybe you go to the meat department first. There is some meat on sale, and you want to find it. The manager of the supermarket knows where customers enter the meat department. The cheaper meat is at the other end of the meat department, away from where the customers enter. You have to walk by all the expensive meat before you find the cheaper meat. Maybe you will buy some of the expensive meat instead of meat on sale. 36. The author asks if you decide ________ in supermarkets. A. how to buy B. what to buy C. the things sold D. when things are sold 37. In the supermarket, there ________. A. is a shopping cart B. are full shopping carts C. places with food D. are shelves food 38. What separates shelves in supermarkets? A. the place near the entrance B. the space between shelves. C. the space at once side of the supermarket. D. the space between the upper and lower shelves 39. According to the passage, music can ________ customers. A. motivate B. tell the mood of C. have an effect on D. make customers happy 40. Which of the following is NOT true about supermarkets? A. They play soft and slow music. B. They put cheaper meat near the entrance C. They want their customers to buy expensive meat D. Customers do not have to listen to fast music. Cả nhà giúp mig với mig cần gấp làm nhanh giúp mig

Cho mình dàn ý đề này :Trong vai ông Hai trong tác phẩm Làng của Kim Lân và kể lại diễn biến tâm trạng cũng như hành động của ông từ khi nghe tin làng Chợ Dầu theo Tây

mọi người giải hộ em bài này với ạ em cảm ơn

II. Identify the underlined word that must be changed to make the sentence correct. 31. Nobody is happy than Miss Snow is. A B C D 32. He needs many more sugar than I do. A B C D 33. Does Mary feel weller today than she did yesterday? A B C D 34. It’s becoming hard and harder to find a job. A B C D 35. The more you have, the most you want. A B C D III.Choose the best option to complete the sentences.sdrdtftftftftftftftfaaaAaaaaaaaaaaaaaa 36. As she did so, her parents became ............... A. the angriest B. the most angry C. the more angry D. angrier and angrier 37. People should eat ............... and do ............. to reduce the risk of heart disease. A. less fat/ more exercise B. less and less fat/ the more exercise C. the less fat/ the more exercise D. fatter/ more exercise 38. He spent a year in India and loves spicy food ............ the food is, ............... he likes it. A. The hotter/ the more and more B. The hotter/the more C. The more and more hot/ the more D. The hottest/ the most 39. Of course you can come to the party ............... A. The more the merrier B. The more and the merrier C. The more and merrier D. The more and more merrier 40. I feel ............... I did yesterday. A. much more tired than B. many more tired than C. as many tired as D. as more tired as 41. She is ............... a spectator. A. more an athlete than B. more of an athlete than C. an athlete more than D. an athlete of more than 42. His house is ............... mine. A. twice as big as B. as twice big as C. as two times big as D. as big as twice 43. ................ live in Ho Chi Minh City than in the whole of the rest of the country. A. As much as people B. More people C. As many as people D. People more 44. It gets ............... to understand what the professor has explained. A. the more difficult B. more difficult than C. difficult more and more D. more and more difficult 45. You must drive more slowly in built up areas ............... you drive in the city, it is ............... that you will have an accident. A. The faster and faster/ the more B. The faster/ the more probable C. The more and more fast/ the more and more probable D. The more fastly/ the probable 46. The party was ............... I had expected. A. more a hundred times funny than B. a hundred times funny more than C. a hundred times funnier than D. a hundred times more funny than 47. He finds physics ............... other science subjects. A. far more difficult than B. many more difficult than C. too much more difficult than D. more much difficult than 48. ............... he drank, ................ he became. A. More/ more violent B. The most/ the most violent C. The more/ the more violent D. The less/ less violent 49. Mary was ............... of the two sisters. A. the clever B. as clever as C. the cleverer D. the cleverest 50. French is a ............... language to learn than English is. A. difficult B. more difficult C. most difficult D. more and more difficult THE END

Giúp mình giải bài này với mọi người

Hiện nay mẹ gấp 3 lần tuổi con. 4 năm sau tuổi mẹ gấp 2,5 lần tuổi con. Hỏi hiện nay mẹ bao nhiêu tuổi? giải nhanh nha mn mik đang cần

Chứng tỏ rằng nếu ( ab+ cd) chia hết cho 9 thì abcd chia hết cho 11

I. Choose the word or phrase (A, B, C or D) which best completes each sentence. 1. Of the four dresses, which is _________________expensive? A. the best B. the most C. the more D. the greater 3. 2. The larger the apartment, the __________________ the rent is. A. expensive B. more expensive C. expensively D. most expensive The faster we walk, __________________ we will get there. A. the soonest B. the soon C. the more soon D. the sooner 4. “Why did you buy these oranges?” “They were __________________ I could find” A. cheapest B. cheapest ones C. the cheapest ones D. the most cheapest 5. She plays the piano __________________ as she sings. A. as beautifully B. more beautifully C. as beautiful D. the most beautifully 6. The streets are getting more and __________________ these days. A. crowded B. less crowded C. more crowded D. most crowded 7. The larger the city, __________________the crime rate. A. highest B. higher C. the highest D. the higher 8. You must explain your problems ________. A. as clear as you can B. as clearly as you can C. as clear than you are D. as clearly as you are 9. Nobody in this team plays _________ Tom. A. as good as B. so well as C. as best as D. as well as 10. Which woman are you going to vote for? –I’m not sure. Everyone says that Joan is _____________. A. smarter B. the smarter C. more smarter D. more smart 11. Bill is _________________. A. lazier and lazier B. more and more lazy C. lazier and more lazy D. more lazy and lazier 12. It’s too noisy here. Can we go somewhere _______________? A. noisier B. more quiet C. more noisy D. quieter 13. ______the time passes, _____I feel! The deadline of my thesis is coming, but I have just finished half of it. A. The faster / the nervous B. The more fast / the nervous C. The fast / the more nervous D. The faster / the more nervous 14. China is the country with__________________ population. A. the larger B. the more large C. the largest D. the most large 15. She sat there quietly, but during all that time she was getting__________________. Finally she exploded. A. more and more angry B. the more angry C. angrier and angrier D. the most angry 16. For ___________ it is certain that in the future some things will be very different. A. the better or the worse B. the good or the bad C. good or bad D. better or worse 17. Her grandfather’s illness was__________________ we thought at first. A. more seriously as B. as seriously as C. more serious than D. as serious than 18. My brother was feeling tired last night, so he went to bed____________ usual. A. more early than B. as early as C more earlier as D. earlier than 19._______ you study for these exams, _______ you will do. A. The harder / the better B. The more / the much C. The hardest / the best D. The more hard / the more good 20. His house is _______ mine. A. twice as big as B. as twice big as C. as two times big as D. as big as twice 21. Today English is ____ international of languages. A. more B. most C. the most D. the more 22. Is this book more interesting ____ the one you read last week? A. that B. as C. than D. of 23. The teacher speaks English ____ we do. A. fluently B. more fluently C. most fluently D. more fluently than 24. John is much ____ I thought. A. strong B. more strong C. stronger than D. more strong than 25. Thank you! That’s ____ gift I have ever received. A. the nicer B. a nice C. nicest D. the nicest 26. The little boy spoke English ____ his brother. A. more fast B. fast than C. the fastest D. faster than 27. Sorry we’re late. Your house is much ____ than we thought. A. far B. the farthest C. the farther D. farther 28. China is the country with the ____ population. A. larger B. large C. most large D. largest 29. My sister is much ____ than me. A. pretty B. prettier C. the prettiest D. more prettier 30. Do you feel ____ today than yesterday? A. well B. good C. best D. better