根据效价，镇痛作用剂量最强的药物是 （    ）

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='27506' and id < 2269967 and id<>'2269967' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='27506' and id > 2269967 and id<>'2269967' order by id asc limit 5