经阴道超声用于检査疑诊异位妊娠患者的最有价值的是（     ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25749' and id < 2163798 and id<>'2163798' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25749' and id > 2163798 and id<>'2163798' order by id asc limit 5