题目内容
二级信息源包括
2021-10-20
A.期刊杂志
B.数据库
C.国内文摘
D.国外文摘
E.专业指南
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='26131' and id < 2189486 and id<>'2189486' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='26131' and id > 2189486 and id<>'2189486' order by id asc limit 5