下列关于二尖瓣狭窄的体征说法错误的是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31469' and id < 2521843 and id<>'2521843' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31469' and id > 2521843 and id<>'2521843' order by id asc limit 5