It may take _________ years to make such robots .        

A.hundred ofB.two hundredsC.hundreds ofD.hundred

C

解析試題分析:英語中數(shù)詞表示概數(shù)時,后面加s,和介詞of搭配使用。用原形時表示具體數(shù)字和數(shù)詞搭配使用。句意:做出這樣的機器人,可能還要幾百年的時間。結合語境可知選C。
考點:考查短語。

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