单选题
Document outputs are produced on ______, devices that produce text or images on paper. A．display and keyboard B．mouse and keyboard C．scanners and plotters D．printers and plotters
【正确答案】
D
【答案解析】题目的大意是：文档一般会输出到打印机和绘图仪上，该设备在纸上产生文本或图像。display and keyboard：显示器和键盘，mouse and keyboard：鼠标和键盘，scanners and plotters：扫描仪和绘图仪，printers and plotters：打印机和绘图仪。