C. The partnership between conservationists and famous people plays an important part in protecting elephants.

　　D. Brave people are badly needed to help Lupita Nyong’O make people aware of protecting elephants.

　　B

　　Robots are already working in our everyday life. Manufacturing companies have used robots for more than 20 years, and it has proven to be successful. But how will the future of robotics change our life forever?

　　Robots Cooking and Waiting on Customers. Robots would be able to read orders, including special orders. Robots would also be able to remember which customer ordered what dish, offering the correct plate to the correct customer. Robots can move more smoothly than humans. The robot would be able to be programmed to take a specific route to a specific customer or table number. This would increase the efficiency of kitchen-to-table food service.

　　Robot-Driven Cars. Google has already created a self-driving vehicle which is currently in the road-testing stages. These cars are manned(给……配备人员) with real people for safety and in case of a mistake. The method is that a vehicle would be equipped with dozens of sensors(传感器) and would be able to calculate speed limits, traffic signs and traffic lights.

　　Security and Defense. Robots are used by hundreds of police departments to inspect suspicious(可疑的) or dangerous packages. They are controlled via remote control command. Robots can even be programmed to cut specific wires.

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