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题型:阅读理解-阅读单选 难度:0.65 引用次数:98 题号:12376601

Dubai is the commercial capital of the oil-rich United Arab Emirates in the Persian Gulf. But officials want to turn it into the world’s “smartest” city. Earlier this year, Dubai announced plans to be the world’s first city to use self-driving taxis. In June, it placed the first robot police officer at shopping centers and places popular with visitors. Dubai police officials now say they plan to use self-driving vehicles to patrol (巡逻) city streets by the end of the year.

Dubai will be the first in the world to use the O-R3 vehicle, according to the Singapore company that builds it. The company, OTSAW Digital, recently signed an agreement with the Dubai Police force to supply the driverless robots.

The vehicles look a lot like most other automobiles, but are much smaller. They are equipped with cameras, machine learning tools and 3D technology to help them operate independently. The robots automatically charge themselves when power gets low.

The vehicle’s cameras can scan faces and record registration information to check for criminals and possible illegal activities. A police official said the robot can recognize people in any area. It will be used to “identify suspicious objects and follow suspects.” “We seek to increase operations with the help of technology such as robots,” said Dubai’s police chief. “We always search for the best technology to serve our police work for a safer and smarter city.”

The O-R3 can communicate with computers at police centers in different locations. The patrolling robot is able to send data and video to the centers, where operators can control the vehicle remotely. The vehicles can also work together with drones (无人机) that can be launched from the back of the robot. The drones can then follow the vehicles and provide more support from the air.

The CEO of OTSAW Digital, Ting Ming Ling, says the use of such vehicles is designed to help humans with their jobs, not replace them. “Eventually, robots exist to improve the quality of human lives, where men take on high value jobs while robots perform the low skilled ones,” he said.

1. What does the underlined word “them” in paragraph 3 refer to?
A.Learning tools.B.O-R3 vehicles.
C.Common automobiles.D.3D cameras.
2. What’s the main purpose of using the OR3 vehicles for patrolling?
A.To take the place of the work of human beings.
B.To gather information of faces in the streets.
C.To help investigate criminal activities more effectively.
D.To keep an eye on people’s behaviors in the city.
3. What does the drone do?
A.Gather more information for O-R3 vehicle.
B.Protect the vehicle from the sky.
C.Show directions for the vehicle.
D.Control the vehicle remotely.
4. Which of the following can be the best title for the text?
A.Police in Dubai Have the Most Advantaged Equipment
B.Dubai Will Put Self-Driving Police Vehicles on Streets
C.You Will Not See Police Officers in the Streets of Dubai
D.Robot Police Officers Are Much Smarter than Human Ones

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【推荐1】A team in Europe are working with wood, but not in the usual ways. They are not carpenters (木匠). Instead, they are scientists exploring how wood can lead to a greener electronic device, a transistor (晶体管) made from balsa wood, whose production releases less climate-warming gas into the air.

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In fact, Engquist says, “There are so many ways we can use wood and the components of wood that we would never have thought of.” For instance, he can now imagine a wood-based sensor that could monitor crop health, measure pollution or survey a forest for fire risk.

1. Which can best describe the transistor?
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2. What is the new transistor’s disadvantage compared to common transistors?
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