先进生产力的集中体现和主要标志是（      ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='27279' and id < 2259902 and id<>'2259902' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='27279' and id > 2259902 and id<>'2259902' order by id asc limit 5