2. 外语
  3. This passage is mainly about the development and safety of robots. In 2002 the number of industrial robots was three times over

This passage is mainly about the development and safety of robots. In 2002 the number of industrial robots was three times over

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问题 This passage is mainly about the development and safety of robots.
In 2002 the number of industrial robots was three times over that of domestic and service robots.
选项 A、Y
B、N
C、NG
答案B
解析 文章开头第3段第2句：According to the United Nations Economic Commission for Europe’s World Robotics Survey，in 2002 the number of domestic and service robots more than tripled，nearly surpassing  their industrial counterparts．原文中提到的more than tripled是家用和服务用的机器人相比以前的数量，而nearly surpassing表明现在的数量与工业用机器人的数量相差不多，题目所说的three times与此不符，所以答案为N。
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