斑蝥有毒，为降低其毒性，宜采用的炮制方法是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29377' and id < 2392898 and id<>'2392898' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29377' and id > 2392898 and id<>'2392898' order by id asc limit 5