Kar-go is the invention of the United Kingdom-based Academy of Robotics, which describes it as "Europe's first road-worthy autonomous delivery vehicle". Using Al, this autonomous delivery vehicle offers customers an app一similar to one used when ordering a taxi一allowing them to choose when and where their packages are delivered. Companies like Tesla and Amazon have invested heavily in autonomous vehicles, which have the potential to create a sea of changes in business and society.
Resembling something like a green egg on wheels, Kar-go's aim is to reduce the cost of what's known as the "last mile delivery challenge". This is the final stage of your online package's journey, from a local warehouse to your front door. Labor costs, paying drivers, the cost of fuel and the vehicle costs for maintaining small vehicles all contribute to making this the most expensive part of the delivery process. The first part of the package's journey is far cheaper, with high volumes of packages being transported to and from the same location. However, at the other end, drivers deliver smaller shipments to several different locations一where the recipient may not even be available to collect.
With the latest Al technology, Kar-go will deliver goods safely, sustainably and in style. The Al vehicle uses special technology to become an expert on its own individual route, learning from past experiences in order to help itself deal with new future obstacles （障碍物）on the road. Kar-go also has its very own internal sorting system, allowing the vehicle to transport packages in the correct order for delivery.
By 2030, the Society of Motor Manufacturers and Traders predicts the autonomous market could add £ 62 billion in economic growth in the UK, creating more than 420,000 new jobs. Electric, self-driving, economic and capable of working 24/7, Kar-go promises to reduce the last mile delivery cost by up to 90% , providing an efficient solution to the rapidly-expanding online retail （零售）market.
12. From the first paragraph we know Kar-go .
A. is an app used to order a taxi
B. is Europe's first autonomous vehicle
C. has created great changes in business and society
D. transports goods at customers' convenience
13. What does Paragraph 2 mainly tell us?
A. How Kar-go delivers the goods. B. What challenges Kar-go may face.
C. How the drivers reduce delivery cost. D. Why the last mile delivery is expensive.
14. What is the advantage of the Al technology used by Kar-go?
A. It has an advanced internal sorting system.
B. It enables vehicles to work more efficiently.
C. It makes a driver become an expert in traffic.