与均匀电场的放电过程相比，极不均匀电场的放电具有电晕放电和极性效应的特点。（   ）

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68449' and id < 4418985 and id<>'4418985' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68449' and id > 4418985 and id<>'4418985' order by id asc limit 5