Trong nguyên tử 1 nguyên tố A có tổng số các loại hạt là 58. Biết số hạt proton ít hơn số hạt nơron là 1 hạt.kí hiệu của A là??

43. It's a pity I can't cook as well as my mom. A. I wish I could cook as well as my mom. B. I wish I can cook as well as my mom. C. I wish I could cook as good as my mom. D. I wish I can cook as better as my mom. 44. Shall we use environmental problem in Ha Noi as a theme of the presentation? A. She suggests use environmental problem in Ha Noi as a theme of the presentation. B. She suggests to use environmental problem in Ha Noi as a theme of the presentation. C. She suggests to using environmental problem in Ha Noi as a theme of the presentation. D. She suggests using environmental problem in Ha Noi as a theme of the presentation. 45. Finish your homework or you can't go out with your friend. A. Unless you finish your homework, you can go out with your friend. B. If you don't finish your homework, you can go out with your friend. C. If you don't finish your homework, you can't go out with your friend. D. If you finish your homework, you can't go out with your friend. 46. It took me 4 hours to read the first chapter of the book. A. I spent 4 hours reading the first chapter of the book. B. I spent 4 hours to read the first chapter of the book. C. I spent 4 hours to reading the first chapter of the book. D. I spent 4 hours read the first chapter of the book. 47. Snowboarding is more dangerous than tennis. A. Tennis is as dangerous as snowboarding. B. Tennis is not as dangerous as snowboarding. C. Tennis is as dangerously as snowboarding. D. Tennis is not as dangerously as snowboarding. 48. Nobody saw her book at the party last night. A. Her book was seen at the party last night. B. Her book was not seen at the party last night. C. Her book were seen at the party last night. D. Her book were not seen at the party last night. 49. Jenny took a taxi, but she still arrived late for the interview. A. In spite of Jenny took a taxi, she still arrived late for the interview. B. Although taking a taxi, Jenny still arrived late for the interview. C. Although Jenny took a taxi, she still arrived late for the interview. D. In spite of took a taxi, Jenny still arrived late for the interview. 50. We didn’t go out because of the heavy rain. A. We didn’t go out because it rained heavily. B. We didn’t go out because of it rained heavily. C. We didn’t go out because it didn’t rain heavily. D. We didn’t go out because it rained heavy.

Mọi người giúp em với ạ, em đang cần gấp, cảm ơn mọi người

câu quy nạp mở bài 8 câu cuối của kiều ở lầu hương bích

Chính xác + đầy đủ giúp em, em cảm ơn

cmr x^2+x+1 lớn hơn bằng không với mọi x

Viết PTHH dãy chuyển đổi sau : a) S => SO2 => SO3 => H2SO4 => Al2(SO4)3 b) CaCO3 => CaO => Ca(OH)2 => CaCl2. Giúp gấpppp

plssss helppppppppppppppppppppppppppppppppppppppppppppppppppppppppp

Chỉ em với các anh chị em cảm ơn nhiều ạ

VII. Rewrite following sentences so that the meaning stay the same. 1.”If I were you,I wouldn’t buy this car” He advised............................................................................................................................ 2.”Shall I carry your suicase,Lan?”said Nam. Nam offered.......................................................................................................................... 3.”Yes,all right,I’ll share the food with you,Dave.” Ann agreed............................................................................................................................ 4.”Sue,can you remember to buy some bread?” Paul reminded........................................................................................................................ 5.”Don’t touch anything in this room”,the man said to the children. The man ordered.................................................................................................................... 6.”I must go home to make the dinner”,said Mary. Mary....................................................................................................................................... 7.”Are you going to Ho Chi Minh City next week?”Tom asked me. Tom asked.............................................................................................................................. 8.”Have you finished your homework?”Mom asked. Mom asked if......................................................................................................................... 9.She said to me:”I can’t do it by myself” She told me that..................................................................................................................... 10.”Does your brother live in London,Nam?”Lan asked. Lan wanted to know if........................................................................................................... 11.”Don’t repeat this mistake again.”his father warned him. His father warned him........................................................................................................... 12.”Give me a smile,”The photographer said to me. The......................................................................................................................................... 13.”Don’t leave these book on the table” ,the librarian said to the students The librarian told the students............................................................................................... 14.”Have you travelled abroad much?”he asked me. He.......................................................................................................................................... 15.”Who has written this note?” the boss asked the secretary. The boss asked.......................................................................................................................