What is unmanned retail? A: Smart vending machine B: Unmanned convenience store C: To realize the duty without shopping guide and cashier based on intelligent technology D: Unmanned shelf

What does the example of three cars explain for? (). A: Unmanned vehicles are much better than manual in term of safe<br/>distance. B: Unmanned<br/>vehicles are much better than manual in term of reaction time. C: Unmanned vehicles can greatly reduce greenhouse gas emissions. D: Unmanned vehicles can greatly increase greenhouse gas emissions.

Which of the following titles is suitable for a research paper?with the key words “unmanned air vehicle” and “ engine” A: Design, build and test an unmanned air vehicle B: Improved efficiency of an unmanned air vehicle IC engine using computational modelling and experimental verification C: Unmanned air vehicles under external impact D: Engine-integrated solid oxide fuel cells for efficient electrical power generation on aircraft

​Which of the following titles is suitable for a research paper?‌with the key words “unmanned air vehicle” and “ engine”‌​‌ A: Design, build and test an unmanned air vehicle B: Improved efficiency of an unmanned air vehicle IC engine using computational modelling and experimental verification C: Unmanned air vehicles under external impact D: Engine-integrated solid oxide fuel cells for efficient electrical power generation on aircraft

The idea is that we _____ an unmanned spacecraft to explore the planet first.

Text A T Or F-3As the father of aerial navigation, George Cayley was the first one to design the first flying machine and sucessfully fly it manned and unmanned.

At present, Our unmanned car can drive on many roads.

“Drone”as in the “Drone delivery”refers to Unmanned Aerial Vehicle (UAV) .（ ）

中国大学MOOC: An unmanned cockpit will pose security concerns when _____.

FAW announced the release of unmanned code and the established theApollo group.(<br/>)