user-avatar
anhquanhk1999
2 năm trước
cho hình thang ABCD (AB//CD). Hai đường chéo vuông góc với nhau . biết AC=16cm,BD=12cm. Tính chiều cao của hình thang
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

III.Read the passage, and then answer the questions. Most robots today are industrial robots. Humans use them to make work easier and quicker. You often see them in car factories where they put the parts of the cars together. They are useful for this kind of work as it is ‘dull, dirty and dangerous’ – DVD. Robots are often used for DDD jobs and where a specific action needs to be repeated. It is very difficult for humans to do this. There are many different types of robots. Some robots travel through space, work on the bottom of the ocean, or go inside volcanoes. They do the work of people, but for a different reason this time: there are places that are very dangerous for people, or impossible for people to go to. Robots are everywhere. Most people don’t know that robots help us everyday and in many different ways. In most houses, there are robots. For example, in some houses today there is a washing machine in the kitchen. Washing machines are robots. People can programme them and then they wash clothes automatically. Some scientists make robots for fun. For example, the dogs are made as toys for small children. Japan produces the most robots. Every year in the capital, Tokyo, there is a robot exhibition called Robodex. It is the largest robot exhibition in the world. What can robots do in car factories? _____________________________________________________________________ Why are robots useful or this kind of work? _____________________________________________________________________ Why do people often use robots to work on the bottom of the ocean or inside volcanoes? _____________________________________________________________________ How can people make washing machines useful? _____________________________________________________________________ Can robots bring us fun? Give an example. _____________________________________________________________________

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