![](https://static.youtibao.com/asksite/comm/h5/images/m_q_title.png)
[单选题]
A-B-819 4 2 3在安装()时,必须保证电流线圈与负载相串联,而电压线圈与负载相并联
A.电压表
B.电流表
C.电能表
D.功率表
![](https://static.youtibao.com/asksite/comm/h5/images/m_q_a.png)
D、功率表
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.电压表
B.电流表
C.电能表
D.功率表
D、功率表
A.≤3/1000、≤1/1000
B.≤4/1000、≤2/1000
C.≤5/1000、≤3/1000
D.≤6/1000、≤4/1000
A.1
B.2
C.3
D.4
A.2/32/3
B.1/22/3
C.1/23/4
D.2/33/4
A.1
B.2
C.3
D.4