检查腹主动脉时，为防止出现伪像，下列 哪项操作不对

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31781' and id < 2540890 and id<>'2540890' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31781' and id > 2540890 and id<>'2540890' order by id asc limit 5