user-avatar
nvkhaiqt
2 năm trước
một xe khởi hành từ A lúc 9h để về B theo chuyển động thẳng đều với vận tốc 36km/h.nửa giờ sau,một xe đi từ B về A với vận tốc 5km/h.cho AB=108km xác định lúc mấy giờ và nơi hai xe gặp nhau
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

1. I (not find) ………… my ring yet which I (lose) ……....……… at the party yesterday. 2. Sharon (love) ……LOVE....……… travelling. She (go) ……..WENT..……… broad almost every summer. 3. I (go) ……....……… to LA the week after Easter. I (give) ……....……… you a call as soon as I arrive. 4. My dad (write) ……....……… several novels. At the moment he (work) ……....……… on a new spy novel. 5. She risks (invest) ……....……… so much money in this business. She’s likely (lose) ……....……… it all. 6. My sister (take) ……....……… her iPhone to the phone store yesterday to get it (repair) ……....………. 7. He woke up (find) ……....……… himself in a small room (surround) ……....……… by dirty walls. 8. The bridge (build) ……....……… during my holiday there last year. But it (not complete) ………......……… so far.

21. A special program has been launched to help children with mental _______________. ABLE 22. The thief couldn’t ________________ the alarm and was caught by the residents. ABLE 23. I find such a rude comment ________________ in this civilized society. ACCEPT 24. His house is only a stone’s throw from school, so he is ________________ late for class almost everyday. ACCEPT 25. Everyone wishes to live in peace and ________________. BROTHER 26. She pays too much attention to ________________ that she cannot lead a happy life. CLEAN 27. Though small, the village school has managed to ________________ its database. COMPUTER 28. In the past, many Vietnamese women had their teeth ________________ and chewed betel. DARK 29. The teacher is especially ________________ about class discipline. EMPHASIZE 30. The old building was ________________ to make room for a new multi-storey car park. FLAT PART FOUR For questions 31–40, fill in each blank with suitable particles. There is an example at the beginning (0). 0. Mary’s new boyfriend also likes cats, so they have a lot ____in____ common. 31. Mary was absent __________ school because she had the flu. 32. Many people who are addicted __________ smoking find it hard to quit it. 33. She’s so eager __________ knowledge that she reads a lot in her free time. 34. Although she studied, she was disappointed __________ her results on the test. 35. Children in the countryside are quite content __________ second-hand clothes. 36. Mary is envious __________ those who can eat what they want and not gain weight. 37. Now that I have graduated, I am equipped __________ the skills to get a job. 38. He was exhausted __________ all the work he did in the garden this weekend. 39. He was injured at work last week and is still not fit __________ the duty. 40. I am grateful __________ the lady who found my wallet at the grocery store.

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