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举一反三
【单选题】以下有关平板扫描仪主要性能指标的叙述中，错误的是
A.
分辨率反映扫描图像的清晰程度，用每英寸生成的像素数目dpi表示
B.
水平分辨率和垂直分辨率都取决于CCD性能和光学系统的性能
C.
色彩位数反映扫描仪对图像色彩或灰度的辨析能力，用每个像素所占二进位数表示
D.
多数平板扫描仪可通过USB接口与PC连接
【单选题】Will chips one day be planted in our bodies for identification? A US doctor has planted under his skin a computer chip that can send personal information to a scanner(扫描仪), a technology that may somed...
A.
catch escaped prisoners
B.
find missing children
C.
follow lost animals
D.
treat sick people