设备板件存在插损，ANC（有电桥）是（）DB，ANC（无电桥）是1DBANY是（）DB，ANX、ANBG是（）DB。

[单选题]设备板件存在插损，ANC（有电桥）的插损是（）。A .1DBB .3.3DBC .4.4DBD .1.1DB

[单选题]对于EEBTS中每一小区，TRE超过（）ANC需使用电桥A .1B .2C .3D .4

[多选题] ALCATEL设备ANC功能是（）。A .设置与不同的TRE对应的LNA的增益B .耦合多路发射机的输出信号，并将它们连接到天线。C .从天线接收到的射频信号馈入到射频前置单元，以便对信号进行放大并送到不同接收机进行处理。D .收发双工、带通滤波、检测天线的VSWR

[单选题]QS1电桥(西林电桥)包括升压试验设备、QS1电桥桥体及()。A.标准电容器B.标准电感C.标准电阻

[单选题]QS1电桥(西林电桥)包括升压试验设备、QS1电桥桥体及()。A.标准电容器B.标准电感C.标准电阻

[单选题]ANC电路指的是（）电路。A .自动噪声抑制B .自动消色C .自动清晰度控制D .自动亮度限制

[单选题]The author quotes the example of our ancestors to show that education emergedA．when people had enough time.B．prior to better ways of finding food.C．when people on longer went hungry.D．as a result of pressure on government.

[单选题]The author quotes the example of our ancestors to show that education emerged __________.[A] when people had enough time[B] prior to better ways of finding food[C] when people on longer went hung[D] as a result of pressure on government

[填空题] 电桥平衡原理是当检流计（）时，电桥达到平衡。

[单选题]双臂电桥又叫凯尔文电桥，是专门用来测量（）A . 高电阻B . 低电阻C . 压敏电阻D . 电压