变压器油一般为强极性液体介质。 (   )

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69243' and id < 4483469 and id<>'4483469' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69243' and id > 4483469 and id<>'4483469' order by id asc limit 5