下列哪种药物的右旋体无效，临床以其左旋体供药用

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='30369' and id < 2454736 and id<>'2454736' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30369' and id > 2454736 and id<>'2454736' order by id asc limit 5