发生感染时，最早升髙的Ig是

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='29529' and id < 2402172 and id<>'2402172' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29529' and id > 2402172 and id<>'2402172' order by id asc limit 5