一台500安匝的电流互感器,其额定二次电流为5A,若二次绕组少绕1匝,对比值差的补偿值是()
A.0.005
B.0.01
C.0.015
D.0.02
参考答案:B
She never dreamed of _____ a chance for her to meet her old friends again. [ ]
A. there being
B. there to be
C. there was
D. being
如果必须在井下主要硐室、主要进风井巷和井口房内进行电焊、气焊和喷灯焊接等工作,作业完毕后,工作地点应再次用水喷洒,并应有专人在工作地点检查(),发现异状,立即处理。
A.0.5h
B.1h
C.2h
D.3h