user-avatar
hhuanbn
2 năm trước
b)Tìm ƯCLN(4n+1;6n+1) với mọi n là số tự nhiên nhanh nha mọi người
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

Question 2:Read the passage and choose the best answer (A, B, C or D). Write your answers on the answer sheet (10 points). Have you ever followed instructions for knitting something or have you read a piece of music? If you have, you have behaved in a similar way(1)... computer. A computer obeys a program to carry out (2). .. a knitting pattern is expressed in numbers and piece of music in lines and dots, so a computer program is (3)............ in the form of programming language. Like the English language (or any a particular task. Just other language), there are of grammar, and a program must be correct in every way. (4).. . ere are hundreds of programming language, but only (5).. . are well- uyeun and widely used. The most popular language which is used in ofices(6). ....Cobol. This language is used for printing payrolls and keeping records of goods. Engineers and scientists use Fortran (7).... ...carry out neither of these two programs is very popular with calculations. (8).... neople working on home computers. Basis is the most popular language for home computers, chiefly (9).. .it is easy to learn and use. (10). . new simple program was devised. Such a program ought to be not only easy to use but also completely reliable. these languages are useful for many purposes, it is time that a C. D. from

IV.Choose the best answer A, B, C or D to complete the sentences. 1. The wai is the traditional of people in Thailand. A.greeting B. hello C. goodbye D. greetings 2. When two Maori people meet, they each other’s noses. A. take B. feel C. touch D. kiss 3. Do you know the way to welcome people in Tibet? A. custom B. customer C. customary D. tradition 4. The xoe dance is a spiritual of Thai ethnic people. A. customs B. tradition C.habit D.dance 5. In Viet Nam you shouldn’t use only the first name to people older than you. A.address B. talk C.say D. speak 6. We are going to prepare sticky rice served with grilled chicken for thecelebration. A.five-coloured B. five-colours C. five-colour D. five colours 7. A tradition is something special that is through the generations. A.passed B.passed to C. passed down D. passed out 8. According to the in England, we have to use a knife and folk at dinner. A.table ways B. table manners C.behaviours D. differences 9. We have to our shoes when we go inside a pagoda. A.put on B.give off C.turn off D.take off 10. In Australia, you shouldn’t on a person’s accent. A. dislike B. criticize C. hate D. comment Unit5: FESTIVALS IN VIETNAM II.Choose the best answer. 1. You should information about a custom or tradition. A.finds B.found C.finding D. find 2. A custom is something that has become an way of doing things. A.to be accept B.to accept C. accepting D. accepted 3. In the UK, there are lots of customs for table manners. For example, we use a knife and fork at dinner. A.have to B.are having C. has to D. having to 4. In Viet Nam, you use only the first name to address people older than you. A.should B.must C.shouldn’t D. have to 5. At the Mid-Autumn Festival, kids can sing, dance, and enjoy moon-cakes. , every child likes it very much. A.However B.Moreover C. Because D. Therefore 6. In 2010, Ha Noi its 1000th anniversary. A.celebrated B. commemorated C. worshipped D. remembered 7. Tet is an occasion for family in Viet Nam. A.visitings B.meeting C.reunions D. seeings 8. spring comes, many Vietnamese villages prepare for a new festival season. A.While B. When C. Nevertheless D. However 9. The flight at 6.10 has been delayed. A.leave B. which leaves C. leaving D. B&C 10. This is the first time she rice paddies. A.will see B. sees C. has seen D. saw 11. Would youmind I borrowed your dictionary? A. if B. when C. that D. Ø 12. We lots of photos on vacation last summer. A. had B. took C. did D. made 13. The animal in the forest fire was a wild pig. A. hurt B. hurted C. hurts D. hurting 14. Would you mind the window? A. to close B. closing C. about closing D. closed 15. Welcome Springfield! A. at B.to C. in D. for 16. Accommodation in London very expensive. A. is B. are C. has D. have 17. The road down to the sea is very rough. A. goes B. going C. to go D. gone 18. is a large hole in the side of a mountain or under the ground. A. Waterfall B. Cave C. Bay D. Lake 19. The vase on the shelf is very beautiful. A. stands B. standing C. is standing D. stood 20. Do you mind if I your atlas for a minute? A.borrow B. will borrow C. am going to borrow D. borrowed 21. Ann asked me not anybody what happened. A. tell B. telling C. to tell D. told 22. After breakfast, I went out for a walk. A. finish B. having finished C. finished D. had finished 23. is a type of white or gray stone containing calcium, used for buildingand making cement. A. Slope B. Limestone C. Site D. Sand 24. China has huge and onshore oil reserves. A. seaside B. remote C. outside D. offshore 25. Do you mind here for just a minute? A. to wait B. waiting C. about waiting D. waited 26. It was late, so we decided a taxi home. A. take B. to take C. taking D. took 27. The council should be able to help families who have no accommodation. A. a place to live B. a place to watch sport matches C. a place to buy meal and eat it D. a place to work 28. He picked the phone as soon as it rang. A. on B. up C. in D. off

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team