單項(xiàng)選擇題(網(wǎng)站)background-color:#ccc;background-image:url(bg.png);background-repeat:no-repeat;background-position:-100pxcenter;以上樣式的縮寫正確的是?()

A.background:#ccc,url(bg.png)no-repeat,-100pxcenter;
B.background:#cccurl(bg.png)no-repeat-100pxcenter;
C.background:#ccc;background-image:url(bg.png)no-repeat-100pxcenter;
D.background-color:#ccc;background-image:url(bg.png)no-repeat-100pxcenter;


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