a,n+5 chia het cho n-1 b,2n-4 chia het cho n+2 c,6n+4 chia het cho 2n+1 d,3-2n chia het cho n+1

CH3-C(CH3)2-C≡CH.Tên gọi IUPAC là gì

Hai vật nhiễm điện …………………………thì chúng ……………nhau ra xa Hai vật nhiễm điện …………………………thì chúng ………………nhau lại gần viết câu trả lời thui nha mik cảm ơn

giúp mik với !! húa sẽ vote 5* và chọn ctlhn cho ai nhanh tay I. Choose the word that has the underlined part pronounced differently 1.A. these B. thank C. those D. there 2. A. pencils B. rulers C. books D. boards 3. A. classroom B. school C. afternoon D. book 4. A. class B. father C. man D. family 5. A. goes B. nurses C. watches D. boxes 6. A. home B. come C. open D. cold 7. A. opens B. gets C. likes D. speaks 8. A. lunch B. watch C. teacher D. architect 9. A. city B. family C. fifteen D. telephone 10. A. number B. plum C. put D. but VI. Choose one word that has the underlined part pronounced differently from the others 1. A. invitation B. intersection C. station D. question 2. A. lives B. misses C. languages D. watches 3. A. down B. brown C. town D. show 4. A. between B. behind C. bakery D. geography 5. A. thank B. thin C. mother D. tooth 6. A. year B. repeat C. meat D. teacher

trung bình cộng của 2 số lớn nhất có ba chữ số.Một trong 2 số bằng 1035.Số kia là

1. Jane……………. a new dress and a pair of shoes. A. want B. wants C. wanting D. to want 2. John along with twenty friends………………. celebrating a party. A. is B. are C. am D. were 3. The picture of the soldiers ……………back many memories. A. bring B. bringing C. brings D. to bring 4. The quality of these recordings…………. not very good. A. be B. are C. am D. is 5. If the duties of these officers………… reduced, there will not be enough time to finish the project. A. isn’t B. aren’t C. am not D. weren’t 6. The effects of cigarette smoking…………..been proven to be extremely harmful. A. have B. has C. to have D. Having 7. The use of credit cards in place of cash……………… increased rapidly in recent years. A. to have B. have C. has D. having 8. Advertisements on TV……………. becoming more competitive than ever before. A. is B. are C. was D. am 9. Living expenses in this country, as well as in many others…………… at an all-time high. A. been B. was C. is D. are 10. Mr. John, accompanied by several members of the committee, …………….. proposed some changes in the rules. A. have B. has C. having D. to have 11. The levels of intoxication …………….from subject to subject. A. vary B. varies C. to vary D. varying 12. Neither Bill nor Mary and Jane…………….. going to the party tonight. A. is B. are C. am D. were 13. Anything………….. better than going to the movies tonight. A. is B. are C. am D. were 14. Skating…………….. becoming more and more popular. A. is B. are C. am D. were 15. A number of reporters…………….. at the conference yesterday. A. is B. are C. was D. were 16. Everybody who…………….. a fever must go home immediately. A. has B. have C. to has D. having 17. Your glasses…………….. on the bureau last night. A. is B. are C. was D. were 18. The committee…………….. already reached a decision. A. have B. has C. having D. to have 19. A pair of jeans…………….. in the washing machine this morning. A. is B. are C. was D. were 20. Each student…………….. just answered the first question. A. have B. has C. having D. to have 21. Either John or Mary…………….. breakfast every morning. A. make B. makes C. making D. to made 22. After she had pursued the materials, the secretary decided that everything…………….. in order. A. is B. are C. was D. were 23. The crowd at the basketball station…………….. very crazy of excitement last night. A. is B. are C. was D. were 24. The army…………….. eliminated this section of the training test. A. has B. have C. to has D. having 25. The number of students who have withdrawn from class this quarter …………….. appalling. A. is B. are C. was D. were 26. There…………….. been too many interruptions in this class. A. have B. has C. having D. to have 27. Peter or his friends…………….. to take a bath in this river. A. want B. wants C. wanting D. to want 28. Each boy and each girl…………….. a book. A. have B. has C. having D. to have 29. The policemen…………….. arrested the thief. A. have B. has C. having D. to have 30. Physics…………….. less difficult than chemistry. A. is B. are C. was D. were 31. Every Elementary School teacher…………….. to take a training course. A. have B. has C. having D. to have 32. Neither Jill nor her parents…………….. seen this film before. A. have B. has C. having D. to have 33. What time…………….. the news on TV? A. is B. are C. was D. were 34. The police…………….. arrested the thieves. A. have B. has C. having D. to have 35. Either Jack or I…………….. enthusiastic to do that. A. is B. are C. was D. were 36. Ten tons of rice…………….. a great deal of money. A. cost B. costs C. costing D. to cost 37. Three years of waiting for him a long time to her. A. isn’t B. aren’t C. not be D. not to be 38. Five billion dollars that guy to wealth and debauchery. A. bring B. brings C. bringing D. to bring 39. There…………….. many people in this village. A. live B. lives C. living D. to live 40. Here…………….. the clown that you……………..best. A. come / like B. comes / like C. come / likes D. coming / likes 41. The methods for studying the earth…………….. been being researched. A. have B. has C. having D. to have 42. To love and to be loved the greatest happiness on earth. A. is B. are C. be D. were 43. The boy and the girl……………..their parents dearly. A. love B. loves C. loving D. to love 44. No teacher and no student…………….. present at the classroom on Sundays. A. is B. are C. be D. were 45. What…………….. the purpose of learning foreign languages? A. is B. are C. be D. were 46. She with we…………….. very happy today. A. is B. are C. be D. were 47. Tom and I…………….. cousins. A. is B. are C. be D. were 48. The whole family …………….. going to the cinema now. A. is B. are C. be D. were 49. The production of dyes, perfumes, and explosive…………….. made a lot of progress. A. have B. has C. having D. to have

mọi người giúp mình với tối nay mình nộp bài rồi

Viết đoạn văn (10-12 câu) gửi lời động viên của em tới các bác sĩ đang ngày đêm ra sức chữa trị, bảo vệ tính mạng cho bệnh nhân nhiễm COVID-19. Trong đoạn sử dụng trạng ngữ tách thành câu riêng.

Anh (chị) hãy trình bày suy nghĩ của mình về tư tưởng nhân văn của Trương Hán Siêu được thể hiện trong tác phẩm Phú sông Bạch Đằng (Bạch Đằng giang phú).

Phân biệt, so sánh nghĩa của từ ghép vs nghĩa của các tiếng: a) ốc nhồi, cá trích, dưa hấu b) viết lách,giấy má, chợ búa,quà cáp c) gang thép, mát tay, nóng lòng * giúp mk vs ak*