掌握若干概念之间关系的学习称为（ ）。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='23638' and id < 2056426 and id<>'2056426' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='23638' and id > 2056426 and id<>'2056426' order by id asc limit 5