当电介质发生极化后，其内部电荷是正电荷数大于负龜荷数。（）.

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32601' and id < 2592319 and id<>'2592319' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32601' and id > 2592319 and id<>'2592319' order by id asc limit 5