对于有介质吸收现象的发电机，电动机变压器等设备，历次试验应选用(  ）的绝缘电阻表。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69491' and id < 4501637 and id<>'4501637' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69491' and id > 4501637 and id<>'4501637' order by id asc limit 5