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阅读理解 Thecity-state of Dubai that is home to the world's tallest building is fastimproving its reputation as the city of the future. On May 22, Dubai officialsadded to their list of futuristic accomplishments with the introduction of theworld's first robot police officer.Nicknamed Robocop after the 1987 action movie,the 1.7-meter tallhumanoid (类人的) robot was introduced at the 4th annual GulfInformation Security Expo and Conference. First introduced in 2011 as REEM byBarcelona-based PAL Robotics, the robot was built to entertain guests atconferences and serve as an information boot小华奶奶最近的听觉下降了很多，小华与她交谈时，必须提高嗓门，这是为了增加声音的______。