QRS波群只表现为一个向下的大波时，其命名应该是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30586' and id < 2467890 and id<>'2467890' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30586' and id > 2467890 and id<>'2467890' order by id asc limit 5