女，38岁，心脏超声心动图提示：二尖瓣脱垂，体检时可能存在的体征是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30629' and id < 2470040 and id<>'2470040' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30629' and id > 2470040 and id<>'2470040' order by id asc limit 5