下列选项中，被称为弹性动脉的是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30849' and id < 2484588 and id<>'2484588' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30849' and id > 2484588 and id<>'2484588' order by id asc limit 5