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The computer in 1946 in America. A. is i...

The computer         in 1946 in America.

A. is invented                            B. was invented              C. invents                            D. invented

 

B 【解析】 试题分析:句意:电脑是1946年在美国被发明的。根据句意可知这是一件过去的事情了,而且句子的主语computer 与invent 之间构成被动的关系,故应使用被动语态。一般过去时的被动语态应是was/were + 过去分词。故选B。A选项是一般现在时的被动语态;C是一般现在时,D是一般过去时,两项没有用被动语态。 考点:考查动词。  
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