下列情形哪一项属于自首？

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31364' and id < 2515365 and id<>'2515365' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31364' and id > 2515365 and id<>'2515365' order by id asc limit 5