由非极性分子组成的电介质称为极性电介质。（）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32664' and id < 2597870 and id<>'2597870' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32664' and id > 2597870 and id<>'2597870' order by id asc limit 5