Hỗn Hợp khí A gồm H2 và O2. Đốt cháy 11,2 lít hỗn hợp A thì thu được 3,6g H20 và V lít hỗn hợp khí B. Biết các thể tích khí đo ở đktc. a) Xác đinh thành phần phần trăm về thể tích các khí trong hh A biết 2,8 lít khí A nặng 1,375g b) TÍnh V

tóm tắt những thành tựu cơ bản trong công cuộc xây dựng chủ nghĩa chủ nghĩa xã hội của liên xô đến những năm 70 của thế kỉ XX.tác động của thành tựu đó tới các nước xã hội chủ nghĩa

trình bày mục tiêu tổng quát nhiệm vụ và giải pháp mà đại hội đại biểu đảng đảng của tỉnh đồng nai lần thứ 10 đề ra trong nhieem kì 2015 - 2020 mục tiêu nào hài lòng nhất vì sao

1. When the children saw their parents, they __________ up and ____________. a. standing/leaving b. stood/left c. stand/leave d. will stand/leave 2. When I come back home, I _________ dinner for my son. a. will cook b. cook c. cooking d. cooked 3. When I was watching TV show, I __________ a pop star. a. have seen b. see c. see d. saw 4. When you ________ tomorrow, we___________ our house. a. come/ clear b. coming/clearing c. will come/ clear d. come/ will clear 5. I haven’t come back home since I ____________ at university. a. have learned b. will learned c. learned d. learning 6. When you finish your course, I __________married you. a. will get b. get c. got d. was getting 7. When I saw my sister, I _________ her a gift. a. give b. will give c. gave d. was giving 8. When I see my brother, I __________ him a gift. a. give b. will give c. gave d. was giving 9. This is the first time, I __________ such a beautiful girl. a. ever met b. have ever met c. was meeting d. will meet 10. I can’t go shopping with you because I _________ my homework yet. a. haven’t finished b. had finished c. didn’t finish d. finish 11. The operation involves _______________a small tube into the heart a. inserting b. to insert d. inserted d. insert 12. I hate him ____________me what to do all the time. a. telling b. tell c. told d. have told 13. I always hate _____________in public. a. speak b. speaking d. spoken d. be spoken 14. We've had to postpone ______________to France because the children are ill. a. go b. to go c. went d. going 15. I heard the orchestra _________ at Carnegie Hall last summer. a. playing b. play c. to play d. played 16. He had tried __________ a language before he left school. a. to learn b. learn c. learned d. learning 17. I meant ___________ school earlier, but I had to have breakfast. a. going b. go c. to go d. went 18. My teacher stopped ______________ because the student was too noisy. a. teach b. to teach c. taught d. teaching 19. When you take the scissors, remember ____________them back. a. to put b. put c. putting d. was putting 20. I think I'd advise him _____________the company. a. leaving b. to leave c. left d. leave 21. Some employment lawyers have advised employers ____________staff now, before the limit for compensation is raised. a. to dismiss b. dismiss c. dismissing d. dismissed 22. Her proposals would allow more people __________in full-time education. a. stay b. staying c. to stay d. have stayed 23. I suggested _____________ the matter to the committee. a. to put b. put c. putting d. is putting 24. I suggest we ______________a while before we make any firm decisions. a. wait b. waiting c. to wait d. waited 25. From the window we could see the children_________ in the yard. a. was playing b. play c. to play d. playing 26. Jacqui saw the car ____________up outside the police station. a. driving b. drive c. to drive d. drove 27. I try to avoid _____________shopping on Saturdays because the stores are so crowded. a. going b. have gone c. went d. to go 28. In the end, we decided ____________to the theatre. a. going b. having gone c. to go d. go 29. I'd expected _______________weight on when I gave up smoking, but I didn't. a. putting b. to put c. was put d. put 30. They're lucky __________such a nice office to work in. a. having b. have c. to have d. had 31. By the time you finish cooking, they ____________their homework. a. do b. have done c. doing d. will have done 32. By the time you ___________ dinner, the film will have ended. a. will finish b. will have finished c. finish d. is finishing 33. At 5 p.m yesterday, I __________ football with old friends. a. was playing b. had been playing c. played d. playing 34. At 9 a.m tomorrow, I ____________ English at school. a. was learning b. will be learning c. learn d. have learned 35. I will call you as soon as I __________back our school. a. came b. come c. will come d. is coming 36. By the time you were born, we _________ a town house. a. buy b. will buy c. bought d. had bought 37. Last night, I _________ to music when power ____________ a. was listening/fail b. listened/failing c. was listening/failed d. listened/ is failing 38. I ________ some soup for Cindy but she said she wasn’t hungry. a. heat b. heating c. have heated d. heated 39. When Cindy _________ her exam at the college, I’ll take her out for dinner at the Continental. a. passes b. passed c. will pass d. pass 40. This is the last time, I _________ sugar after 9 p.m. a. eating b. ate c. have ate d. will eat

.Khi ô tô chạy với vận tốc 12 m/s trên 1 đoạn thẳng thì người lái xe tăng tốc cho xe chạy nhanh dần đều . sau 15s , ô tô đạt vận tốc 15m/s a) Tính gia tốc của ô tô b) Tính vận tốc của ô tô và quãng đường đi được sau 30s kể từ lúc tăng ga

Cho 2 đồng vị 35Cl và 37Cl, 63Cu và 65Cu Cho biết phân tử của cucl2

Vẽ và tô màu giống 100% hình đã cho

Tìm số chia và thương của một phép chia có số bị chia bằng 145, số dư là 12. Biết thương là số tự nhiên khác 1

Viết đoạn văn về suy nghĩ của em khi người thân em bị nói xấu

dịch dùm jerry đoạn văn này nha WRITING TIP you can use a word web as a way to organise the ideas for you writing Dịch kĩ dùm jerry cái từ word web nghĩa của nó trong đoạn văn này k dùng google dịch nha ( mình thử rồi nó k bik dịch ) ai sài cái đó là k cho 5 sao và ctlhn đâu ó