内毒素的主要成分为(    )

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='5357' and id < 401292 and id<>'401292' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='5357' and id > 401292 and id<>'401292' order by id asc limit 5