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Cho A→B→C→D→Cu . Hãy lập 2 dãy chuyển hóa cho phù hợp . Viết PTHH bt A,B,C,D là các hợp chất của đồng . Giúp em với mn nhoa
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Các câu hỏi liên quan

30. We stopped_______ hello to her. a. say b. saying b. to have said d. to say 31. We came_______ help her. a. help b. to help c. to have helped d. helping 32. I'll invite her_______ my daughter. a. teaching b. teach c. to teach d. to have taught 33. I don’t feel like_______ to the cinema now. a. go b. going c. to go d. to have gone 34. It's no good_______ video games. a. play b. to have played c. to play d. playing 35. It's no use_______ with him. a. working b. work c. to work d. to have worked 36. The idea of_______ abroad appeals to me. a. working b. work c. to work d. being working 37. The Rogers are happy about_______ a baby. a. have b. having c. to have d. to be having 38. Camping is hard if you're not used to _______ on the ground. a. be slept b. to be sleeping c. sleeping d. sleeping 39. Mrs. Kerry didn’t want_______ on a. to be operated b. being operated c. to operate d. to be operating 40. Windows are used to let in light and _______ out cold. a. to keep b. keep c. keeping d. for keeping 41. It isn't worth while_______ her. a. marry b. to marry c. marrying d. to have married 42. She did nothing but_______ a. cry b. to cry c. to have cried d. crying 43. He can’t live without_______ here. a. being loved b. to love c. love d. loving 44. People are prevented from_______ to the polluted area. a. go b. going c. to go d. to have gone 45. Tourists are not allowed _______ in the Temple. a. to talk b. talk c. talking d. being talked 46. The teacher doesn't allow_______ dictionaries in the final examination. a. being used b. use c. using d. to use 47. Many countries have considered_______ the victims of the tsunami. a. to have helped b. to help c. help d. helping 48. The child admitted_______ a lie. a. tell b. telling c. to tell d. to be telling 49. The president agreed_______ the Agreement. a. to sign b. sign c. signing d. to have signed 50. The captain chose_______ with his ship. a. die b. to die c. to have died d. dying 51. Vietnam failed_______ Tiger Cup 2004! a. winning b. win c. to win d. to have won 52. The child promised_______ his parents. a. being obeyed b. obeying c. obey d. to obey 53. Lee was upset by_______ him the truth. a. our not having told b. us not tell c. we didn't tell d. not to tell 54. Wee considered_______ after work. a. to go shop b. going shopping c. going to shop d. to go to shop 55. Jack offered_______ care of my garden while I was out of town. a. take b. taking c. to have taken d. to take 56. Could you please come over? I need you _______ the refrigerator. a. help me moving b. helping me to move c. to help me move d. help me to move 57. I'll never forget_______ that race. What a thrill! a. to win b. win c. being won d. winning 58. No one has better qualifications. Carol is certain_______ for the job. a. to choose b. having chosen c. to be chosen d. being chosen 59. I was enjoying my book, but I topper_______ a program on TV. a. reading to watch b. to read to watch c. to read for watching d. reading for to watch 60. Who is the woman talking to Mr. Quinn? I don't recall_______ her around the office before. a. to have seen b. seeing c. to see d. being seen

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