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3.The ______ of a computer is the set of keys that you press in order to do something.(  )
A.mouseB.keyboardC.speaker

分析 计算机的键盘是你为了做某事而按的一组按键.

解答 答案:B
根据句意:你为了做某事而按的一组按键,就是电脑的"键盘",mouse鼠标,keyboard键盘,speaker扬声器.故选:B.

点评 本题考查名词的辨析,在熟知各个词义的基础上与句子的语境相结合,从而得出正确的答案.

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