国家标准(GB     —  )中规定的四种安全色是：（ ）。‘

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30400' and id < 2457441 and id<>'2457441' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30400' and id > 2457441 and id<>'2457441' order by id asc limit 5