The passage is mainly about______. Factory owners use ______ all across the country.

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问题 The passage is mainly about______.
Factory owners use ______ all across the country.

选项 A、no robots
B、hundreds of robots
C、many thousands of robots
D、few robots

答案C

解析 短文第一段最后两句谈到全国很多工厂已经使用几千机器人,并且每天都有更多机器人投人使用。选项[A]正符合此意。
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