目前常用的单相电能表都是()。
A、感应式三磁通型
B、电流表
C、电压型
D、机械表
参考答案:A
若有定义语句:int k[2][3],* pk[3];,则以下语句中正确的是【 】。
A.pk=k;
B.pk [0]=&k[1][2];
C.pk=k[0];
D.pk[1]=k;
Sub-contractors should obey the contractor in information system project. When censoring sub-contractors, the supervisor mostly concerns about ().
A.Amount of subcontract
B.qualifications and abilities of sub-contractors
C.responsibilities and obligations of sub-contractors
D.the contents of the subcontract