Industrial robots are already working in many factories around the world and in our homes, for instance as smart vacuum cleaners

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问题    Industrial robots are already working in many factories around the world and in our homes, for instance as smart vacuum cleaners. Scientists say in a few years we will start seeing so-called "social robots" capable of engaging with people.
   Today’ s robots can build cars and explore underwater objects. But interacting with people is more complex than simply taking an incoming message, says Massachusetts Institute of Technology researcher Cynthia Breazeal.
   " Social robots really interact with people in ways you feel like you’ re interacting with someone rather than something," she said. "And social robots are really designed to engage you in much more of an interaction that feels like a cooperation or partnership.
   At the Naval Research Laboratory, near Washington, scientists are researching which features robots should have to be able to live with humans. Researcher Alan Schultz says social robots must be adapted to social situations.
   " You know if you’ re going to have robots out in the wild, so to speak, they have to obey our standards and they have to do things in the way we expect, so that we can move about our environment and not be interrupted by them or have to think hard about the fact that they’ re around us," he said.
   Social robots do not necessarily have to have a human face. Steve Cousins, the CEO of Savioke Robotics in Cupertino, California, says their robot called Botlr is already being tested in a hotel, delivering small items to people.
   " It’ s designed to be in human spaces and interact with people and around people," he said. "So it interacts with the front desk agent when they’ re sending it somewhere. It interacts with people in the elevator as it’ s going along. And, it interacts with people at the door when the delivery arrives. "
   So far, social robots are limited to very simple tasks like relaying messages or taking family photos. But Cynthia Breazeal, who designed this one, says their abilities may be extended into many different areas.
Which of the following best describes the writer’ s tone in the passage?

选项 A、Critical.
B、Prejudiced.
C、Subjective.
D、Objective.

答案D

解析 通读全文可知,本文的作者以客观的态度陈述了事实,主要向我们讲述 了社交机器人的一些功能。因此作者的语气是客观的。critical:批判的;prejudiced: 有偏见的;subjective:主观的,均与题意不符。故选D。
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