在冠心病诊断中，心脏超声造影不具有以 下哪项功能 

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31770' and id < 2540000 and id<>'2540000' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31770' and id > 2540000 and id<>'2540000' order by id asc limit 5