最常用于诊断卵巢肿瘤的无创检査是(       )

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SQL Error: select id,body,options from ***_enewstiku where sourceid='26983' and id < 2239979 and id<>'2239979' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='26983' and id > 2239979 and id<>'2239979' order by id asc limit 5