单选

（）accepts documents consisting of text and/or images and converts them to machine-readable form.

A. A printer
B. A scanner
C. A mouse
D. A keyboard

试题出自试卷《2017年上半年程序员考试上午真题（参考答案）》

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（ ）accepts documents consisting of text and/or images and converts them to machine-readable form.

（）accepts documents consisting of text and/or images and converts them to machine-readable form.