【单选题】【消耗次数：1】
图象分辨率的单位是（）。
①
A.dpi
②
B.ppi
③
C.lpi
④
D.pixel
参考答案：
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下列关于dpi的叙述（ ）是正确的。（1）每英寸的bit数（2）每英寸像素点（3）dpi越高图像质量越低（4）描述分辨率的单位
①
（1）（3）
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