患者，女性，20岁。感冒后心悸1周入院，心电图示：频发室性期前收缩，下述哪项不符合室性期前收缩心电图改变

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30153' and id < 2439875 and id<>'2439875' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30153' and id > 2439875 and id<>'2439875' order by id asc limit 5