: Ba đội máy san đất làm ba khối lượng công việc như nhau. Đội thứ nhất hoàn thành công việc trong 2 ngày, đội thứ hai hoàn thành công việc trong 3 ngày và đội thứ ba hoàn thành công việc trong 4 ngày. Hỏi mỗi đội có bao nhiêu máy (có cùng năng suất), biết rằng số máy đội thứ hai nhiều hơn số máy đội thứ ba là 3 máy.

Sắp xếp các từ sau để tạo thành câu hoàn chỉnh . 1.TV/watching/affect/depite/off/the/day/fact/per/a/hours/lot/people's/that/he/may/spent/4/wathcing healthy/TV. 2.interested/i/Water/am/very/in/to/chance/the/haven't/festival/however/joining/had/i/a/go/Thailland/ there/of . 3.nevertheless/film/i/was/couldn;t/disappointing/wait/its/the/to/ending/see/really. 4.watching/used/cartoon/make/cousin/films/me/what/excited/to/was/with/my. Viết lại câu sao cho nghĩa ko đổi . 1.I was impressed by the way she performed the dancing at the party . --> What impressed me .............................................................................. 2.How did they get through the traffic jam this morning ? --> In what ................................................................................................ 3.Although he ws not selected as the winter , he was still happy . -->Despite............................................................................................... 4.Surprising ,the main character in the film was still alive and came back home . --> It is surprising............................................................................................... 5.In spite of being in a big hurry , Jimmy didn't take the shortcut to his work place . -->Although...............................................................................................................

Hai mảnh nhôm nhiễm điện cùng loại thì..

Tính chu vi của một tam giác cân biết độ dài hai cạnh của nó là 3cm và 7cm. Select one: A. 10cm B. 20cm C. 17cm D. 13cm

Viết các PTHH thực hiện các chuỗi biến hóa sau, ghi rõ điều kiện phản ứng (nếu có): a) CaO CaCO3 CaO CaC2 Ca(OH)2 b) Na NaCl NaOH Na2CO3 CO2 Ca(HCO3)2

Vật nào dưới đây là vật cách điện? 5 điểm Dây đồng Thanh sắt Nước cất Nước sinh hoạt

Theo lí thuyết kết luận nào đúng

a) Tìm x là số tự nhiên bé nhất sao cho : x > 10,25 b) Tìm x là số tự nhiên lớn nhất sao cho: x < 8,2

Cho luồng khí H2 lần lượt qua các ống sứ mắc nối tiếp chứa các chất sau: ống 1 chứa CuO nung nóng, ống 2 chứa MgO nung nóng, ống 3 chứa P2O5. Nêu hiện tượng và viết PTHH xảy ra trong từng ống sứ.

Exercise 2. Complete with there is, there are 1. _________ a tree in our garden. 2. _________ a girl called Tabatah in my class. 3. _________ cows in the field. 4. _________ some very big ships in the harbor today. 5. _________ fish for dinner. 6. _________ a girl in my class who can walk on her hands. 7. _________ nothing to do when it rains. 8. _________ cat sitting on the bench. 9. In our park _________ some great things to play on. 10. In our park _________ a fountain where we can drink water. 11. _________ a computer in the classroom. 12. _________ some posters in my office. 13. _________ a CD player in my bedroom. 14. _________ 30 desks in the hotel. 15. _________ a blackboard in the classroom. 16. _________ some dictionaries in the library. 17. _________ some blue fish in the ocean. 18. _________ a tree in the field? 19. _________ any plants in that garden? 20. _________ a cinema in my town? 21. _________ some fantastic beaches at the Costa del Sol. 22. _________ (not) a hole in the floor. 23. _________ (not) a tram station in Alhaurin de la Torre. 24. _________ many schools in Fuengirola. 25. _________ (not) a swimming pool in town. 26. _________ many animals in the Zoo. 27. _________ (not) a snake in the window. 28. _________ an eel in the aquarium? 29. _________ any children in the park? 30. _________ (not) a gorilla in the tree. 31. _________ a lot of traffic in Valencia. 32. _________ anywhere to park around here? 33. _________ only one way to solve this problem. 34. _________ enough time to finish? 35. _________ (not) many tigers left in the world. 36. _________ any public buses in Los Angeles. 37. _________ anyone here who wants to volunteer? 38. _________ many windows in the room? 39. _________ (not) a TV in my kitchen. 40. _________ two chairs in the living room. Exercise 3: A. Fill in the gaps with the comparative form of the adjectives given. 1. A rock is......................... than a leaf. (heavy) 2. Our house is..........................than yours. (big) 3. The princess is............................than the witch. (beautiful) 4. Tom is a......................student than Mary. (good) 5. Bicycles are.....................than motorbikes. (safe) 6. July is...............................than January. (hot) 7. A lion is...............................than a cat. (dangerous) 8. Helen is..........................than Mary. (happy) 9. Computers are..................................than telephones. (expensive) 10. I think golf is.................................than football. (boring) B. Fill in the gaps with the superlative form of the adjectives given. 1. It is the..................shop in town. (large) 2. Monday is the.....................day of the week. (bad) 3. Ben was the........................person in his family. (noisy) 4. Sam is the in the.............................class. (popular) 5. Which is the.......................................subject at school? (difficult) 6. Jim is the.....................................player in the football team. (good) 7. Elephants are the................................animals. (heavy) 8. Let's pick the.........................................apple of the tree. (big) 9. Mary is the........................girl in the class. (thin) 10. That is the...............................sofa in our house. (comfortable) C. Fill in the gaps with the comparative or the superlative form of the adjectives given. 1. This armchair is.................................................. the old one. (comfortable) 2. Trains are..................................................... aeroplanes. (slow) 3. I bought ............................souvenir I could afford. (expensive) 4. In this classroom there are...........................girls than boys. (many) 5. Ann is ............................child in the family. (young) 6. That TV set is ............................ of all. (cheap) 7. You are...............................here than there. (safe) 8. Fifi is...................................Kate. (pretty) 9. This is ......................................film i have ever seen. (exciting) 10. Tim is.................................Peter. (talented) 11. Is Ho Chi Minh City......................................Ha Noi? (big) 12. Summer is.......................................season of the year. (hot) 13. Mount Everest is.........................................Mount Fuji. (high) 14. Antarctica is .........................................place in the world. (cold) 15. Living in the city is..............................living in the country (noisy) 16. .............................desert in the world is Sahara. (hot) 17. Nile river is ...............................Mekong river (long)