测量单色光的波长时，下列方法中哪一种方法最为准确？（）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30392' and id < 2456899 and id<>'2456899' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30392' and id > 2456899 and id<>'2456899' order by id asc limit 5