设置背景图像为沿竖直方向平铺的属性是（） A: ackground-repeat:repeat; B: ackground-repeat:repeat-x; C: ackground-repeat:repeat-y; D: ackground-repeat:no-repeat;

以下关于背景描述正确的是 ( ) A: ackground B: ackground-attachment C: ackground-repeat D: ackground-image

下列选项中，属于盒子模型背景属性的是（ ） A: colo B: ackground-image C: ackground-repeat D: ackground

下列代码如何简写： background-image: url(tp.jpg); background-position:centertop; background-repeat:no-repeat; A: ackground: url(tp.jpg) no-repeat centertop; B: ackground: no-repeat centertop url(tp.jpg); C: ackground: url(tp.jpg) centertopno-repeat;

repeat方法描述正确的是（） A: hello’.repeat（2）//"hellohello" B: na’.repeat（0）//"na" C: na’.repeat（2.9）//"nanana" D: na’.repeat（Infinity）//"nana......"

设置背景颜色为green，背景图片垂直居中显示，背景图片充满整个区域，但是背景图片不能变形,图片只出现一次，以下书写正确的是（ ） A: ackground:url("../img/img1.jpg") no-repeat center/cover green; B: ackground:url("../img/img1.jpg") repeat center/cover green; C: url("../img/img1.jpg") no-repeat center/100% green; D: url("../img/img1.jpg") no-repeat center/100% 100% green;

下列样式代码中，可用于设置背景图像平铺方式的是（ ） A: ackground-repeat:no-repeat; B: ackground-attachment:fixed; C: ackground-attachment:scroll; D: ackground-repeat: repeat-x;

Would you mind ____ that back to me? A: repeat B: repeating C: to repeat

Would you mind ________________that? A: to repeat B: repeating C: repeat D: repeated

There is nothing to do but ______ the experiment. A: to repeat B: repeating C: repeats D: D. repeat