下图曲线可以表达下列哪项生物学含义         

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='22018' and id < 1925387 and id<>'1925387' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='22018' and id > 1925387 and id<>'1925387' order by id asc limit 5