129 Using the situation stated in the Special window, what is the cost variance for Case #9?A. -$1000B. 1000C. -2000D. 2000E. 0
129 Using the situation stated in the Special window, what is the cost variance for Case #9?
A. -$1000
B. 1000
C. -2000
D. 2000
E. 0
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下列样式代码中，可精确定义元素位置的是（）A．special{ position: absolute;}B．special{ position: absolute; top:20px; left:16px;}C．special{ position: relative;; top:20px; left:16px;}D．special{ position: relative;}
执行下列程序段后，i的正确结果是（） int i=9; switch（i) { case 9:i+=1; case 10:i++;break; case 11: ++i;break; default:i+=i;break; }A．9B．10C．11D．24