下列属于非正式的法的渊源的是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32004' and id < 2556199 and id<>'2556199' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32004' and id > 2556199 and id<>'2556199' order by id asc limit 5