在（ ）中，前者为髙合金钢，后者为低合金钢。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='24889' and id < 2124329 and id<>'2124329' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24889' and id > 2124329 and id<>'2124329' order by id asc limit 5