标准镜头的焦距为(  )。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='27861' and id < 2288750 and id<>'2288750' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='27861' and id > 2288750 and id<>'2288750' order by id asc limit 5