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Some scientists think that it may take ______ years to make robots look like people, and do the same things as us.
A.hundreds ofB.two hundreds ofC.two hundredsD. hundreds
A

试题分析:句意:一些科学家认为,可能需要数百年才能使机器人看起来像人一样,并且和我们做同样的事情。表示确切数字时,hundred不用复数形式,不和of连用。表示概数时,hundred必须用复数形式并且和of连用。所以选A。
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