关于第三代头孢菌素的叙述正确的是

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='30249' and id < 2446956 and id<>'2446956' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30249' and id > 2446956 and id<>'2446956' order by id asc limit 5