一发绀型先天性心脏病患儿，声像图只显示 —组半月瓣，可能的诊断为（     ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25743' and id < 2163540 and id<>'2163540' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25743' and id > 2163540 and id<>'2163540' order by id asc limit 5