低气湿是指环境相对湿度小于

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31931' and id < 2553455 and id<>'2553455' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31931' and id > 2553455 and id<>'2553455' order by id asc limit 5