.通常电导体由绝缘材料分开就可以产生电容。（   ）

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69455' and id < 4498067 and id<>'4498067' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69455' and id > 4498067 and id<>'4498067' order by id asc limit 5