Nguyễn Thị Ánh Viên – Huy chương vàng Seagame 2017 với thành tích 4’10.96” (làm tròn 4 phút 11 giây khi tính toán) bơi 400m trên đường đua xanh. Các nhà báo vui tính “Ví von” Ánh Viên bơi với tốc độ “Tên lửa”. Hãy cho biết với tốc độ bơi 400m của Ánh Viên như vậy bằng bao nhiêu phần trăm (%) tốc độ tên lửa, biết rằng tên lửa đẩy muốn thắng được sức hút trái đất để đưa vệ tinh vào quỹ đạo vận tốc tối thiểu 8km/giây (làm tròn 2 chữ số thập phân).

Các câu hỏi liên quan

B1 Reading the passage Life is changing rapidly in the large cities of England. However, life in other areas remains much the (1) ……. as it has been for centuries. Factories have brought huge population increases to the cities, and city life boomed. City residents have discovered a new (2) …… of life, but in country villages the traditional lifestyle has remained nearly (3) ….There have been a few changes, particularly the new steam-powered machinery. It made farm production more (4)……. But for the people who remain in the countryside, daily life continues much as it had before the (5)…….. Revolution. Life in country villages continues to (6) …… at a slow pace. The daily schedule depends on the times that the sun rose and set and on the weather. In a typical village, the (7) …… number of workers is still employed in agriculture or in domestic service. A smaller number of people work in various trades. Even (8) ……work in the professions. a. Choose the most suitable word to fill in the blank 1. A. similar B. same C. different D. difference 2. A. method B. walk C. way D. path 3. A. changeful B. changeable C. unchanged D. change 4. A. efficient B. efficiently C. efficiency D. inefficient 5. A. Industry B. Industrial C. Industrialize D. Industrialized 6. A. run B. walk C. move D. drive 7. A. largest B. biggest C. highest D. all are correct 8. A. more B. less C. few D. fewer b. Fill in the blank with one word/ phrase from the passage 1. The population in the city has increased because of ……………. 2. There have been hardly any changes in the ……………… in rural areas. 3. Steam - powered machinery helps ………………. a lot. 4. The daily schedule of people in the countryside depends on ……………. 5. Most countryside people in England work in agriculture or in ……………...