由两个或两个以上胚层组织构成的肿瘤是   ( )

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29017' and id < 2361260 and id<>'2361260' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29017' and id > 2361260 and id<>'2361260' order by id asc limit 5