user-avatar
pn1836750
2 năm trước
S=1/51.10+1/10.15+...+1/95.100 CM S<1 Tính A=2/1.4+2/4.7+2/7.10+...+2/97.100 Cần gấp
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

**Chọn đáp án đúng ! The people living in Milton Keynes, a town about 70 kilometers northwest of London, have been introduced to a new transport experience when they use 'pods' to travel on certain routes. The pods are a kind of driverless cars which travel at 19km/h and are able to transport two people and their luggage. There is a touchscreen in the windshield of the pods where passengers select their terminal. During the trip they can also read the news, check e-mails or play video games on the screen. Powered by electric motors, the pods have ultrasonic sensors and a GPS system that help themselves know where they are going and how to avoid obstacles along the way. People can use a smartphone app to hail a pod in the street. Do you think this way of transport will appear in cities in Viet Nam soon? 1. Where is the project introduced? A. a town about 70 kilometers west of London. B. a town about 70 kilometers southwest of London. C. a town about 70 kilometers north of London. D. a town about 70 kilometers northwest of London. 2. What can passengers do with the touchscreen? A. select their terminal B. read the news C. check e-mails D. All are correct 3. What enables pods to know where they are going and how to avoid obstacles? A. The ultrasonic sensors and the GPS system. B. The ultrasonic sensors. C. The GPS system. D. The ultrasonic sensors or the GPS system. 4. People can use a _____ app to hail a pod in the street. A. telephone B. radio C. headphone D. smartphone 5. The pods are a kind of ____cars. A. driverless B. driving C. flying D. normal

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