Friday, September 16, 2022
在Windows状态下,使用ALT+TAB快捷键可在打开的窗口间切换。()...
Thursday, November 16, 2023
DOS命令分内部与外部命令,下面属于内部命令的是()。A、FORMATB、XCOPYC、DISKCOPYD、TYPE...
Sunday, May 28, 2023
Thursday, February 1, 2024
Friday, November 3, 2023
Thursday, November 16, 2023
Sunday, February 26, 2023
用电压表测得的交流电压是()。A、最大值;B、有效值;C、平均值;D、瞬时值。...
Wednesday, November 22, 2023
Monday, March 25, 2024
计算题:现场工作人员检测到三相有功电能表1min发出了30个脉冲...
Friday, September 16, 2022
并联谐振又称为()谐振。A、电阻;B、电流;C、电压;D、电抗。...
Tuesday, April 16, 2024
Friday, January 5, 2024
Friday, September 16, 2022
按实用化验收要求,与中心站直接通信的终端,随机巡测成功率应达到(...
Tuesday, September 13, 2022
在晶体管电路中,为了利用RC相移网络倒180°,至少要用()RC相移网络。A、一节;B、二节;C、三节;D、四节。...
Wednesday, April 3, 2024
简述载波电力负荷控制系统中央监控室防止电磁干扰的措施。...
Friday, January 5, 2024
Friday, September 16, 2022
Wednesday, April 3, 2024
在无线电负荷控制系统中,为了便于主控站识别各个终端,要求每个终端的地址码都不相同。()...
Wednesday, November 22, 2023