模拟科学研究活动的学习是（ ）。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='30610' and id < 2469372 and id<>'2469372' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30610' and id > 2469372 and id<>'2469372' order by id asc limit 5