女，36岁，超声心动图提示：二尖瓣关闭不全，体检时最可能发现的杂音是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30629' and id < 2470042 and id<>'2470042' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30629' and id > 2470042 and id<>'2470042' order by id asc limit 5