封闭式插接母线槽是由金属板(钢板或铝板)为保护外壳，并由导电排、绝缘材料及有关附件组成的母线系统。( )
参考答案：对
The preferred stock of the Delco Investments Company has a par value of $150 and a dividend of $11.50. A shareholder's required return on this stock is 14%. What is the maximum price he would pay（）
A. $82.14.
B. $150.00.
C. $54.76.
女兵征集综合素质考评由（）组织。
A.县级征兵办
B.市级征兵办
C.省级征兵办
