镰状细胞贫血患者的血红蛋白是HbS，其β链的第6位氨基酸是

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='24548' and id < 2107561 and id<>'2107561' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24548' and id > 2107561 and id<>'2107561' order by id asc limit 5