In2013,Bezos,theCEOandfounderofAmazonInc.,madeheadlines...

来源：语文精选馆 1.02W

问题详情：

In 2013, Bezos, the CEO and founder of Amazon Inc., made headlines when he announced that within a few years, the company would use unmanned drones(无人机)to deliver packages within 30 minutes after an order was placed. Since Amazon Prime Air was publicized the night before “Cyber Monday,” some just regarded it apublicity stunt(噱头) designed to draw attention to the company. It turns out they were wrong.

On December 7, 2016, Amazon revealed that it had completed its first Prime Air delivery in Cambridge, UK. The package, containing a bag of popcorn and an Amazon Fire TV, were loaded on to the unmanned vehicle from a local fulfillment center and delivered to a two-story farmhouse several miles away – all within 13 minutes after the items were bought!

The company also announced that the service is now available within the five-square-mile range of the Cambridge area, seven days a week during daylight hours. The thinly populated rural area, with few dozen residents distributed amidst vast areas of farmland and fields, is perfect for testing the drones.

Unfortunately, even if the trial is wildly successful, many challenges still remain before drone delivery becomes a reality for most of us. While the drone may do fine in rural areas, they remain untested in crowdedurban cities where they would bump into barriers like buildings or trees. There is also fear that theautonomous flying vehicles could injure people as they come down to drop their packages. The drones and their load are also damaged by destroyers.

Then there are the delivery logistics(后勤保障). Amazon will not only have to ensure that every Prime Air customer has a special landing flat surface, but also come up with a practical solution for apartment residents who do not have accessto an open space where the drone can land. Hence, while Amazon Prime Air may someday be a reality, for now, we will just have to wait for two “long” days to receive our packages!

28. Why was the trial carried out in Cambridge area?

A. Amazon couldn’t find out drone landing space in crowded urban cities.

B. The vast rural areas with smaller population were perfect test sites.

C. Drone flight was prohibited where there were impassable barriers.

D. The company had many logistics to guarantee service quality there.

29. It can be inferred from the text that _________.

A. the new service will save customers more time and money.

B Amazon is the early pioneer of drone flight in the world

C universal drone package delivery has still a long way to go

D the injuries by drones have got the local residents in panic

is the main idea of the text?

A. Drone delivery reached customers in a shorter time.