—
— It's twelve o'clock! [ ]
A. What is it?
B. Where is it?
C. What time is it?
答案:C
简述EAM系统设备拆件流程。
《智能设备交接验收规范第2部分:电子式互感器》规定,合并单元应能够实现采集器间的采样同步功能,采样的同步误差应不大于()
A.±1μs
B.±2μs
C.±3μs
D.±4μs