题目内容
教科书属于（ ）
2021-11-10
A.零次情报
B.—次文献
C.二次文献
D.三次文献
E.计箅机化资料
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='27486' and id < 2270778 and id<>'2270778' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='27486' and id > 2270778 and id<>'2270778' order by id asc limit 5