与正常运行情况相比，外部故障时流过差动继电器的不平衡电流较大。（   ）

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69378' and id < 4491529 and id<>'4491529' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69378' and id > 4491529 and id<>'4491529' order by id asc limit 5