红细胞表面不存在抗原，其血清中却有抗A抗体和抗B抗体的血型是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30503' and id < 2463119 and id<>'2463119' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30503' and id > 2463119 and id<>'2463119' order by id asc limit 5