（多选）在进行区间估计时，影响区间宽度的因素有（ ）。[西安交大2007研]

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30463' and id < 2461287 and id<>'2461287' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30463' and id > 2461287 and id<>'2461287' order by id asc limit 5