下列属于定量研究方法的是 （ ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29324' and id < 2387130 and id<>'2387130' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29324' and id > 2387130 and id<>'2387130' order by id asc limit 5