The ability to store knowledge makes computers different from every other machine ______ invented.

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问题 The ability to store knowledge makes computers different from every other machine ______ invented.

选项 A、ever
B、thus
C、yet
D、as

答案A

解析 ever=at any time in the past(至今，曾经)，用在该句中可与过去分词invented一起修饰名词machine。此处computers与other machine形成一定的对比，所以后者很可能是已经存在的早已发明的机器。

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B类竞赛（英语专业本科专科）

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