介质的偶极子极化是非弹性.无损耗的极化（）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32601' and id < 2592321 and id<>'2592321' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32601' and id > 2592321 and id<>'2592321' order by id asc limit 5