题目内容
实验设计的基本原则是
2021-10-13
A.随机化、重复、盲法
B.随机化、对照、盲法
C.随机化、对照、重复
D.盲法、对照、重复
E.均衡、对照、重复
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='25581' and id < 2153328 and id<>'2153328' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25581' and id > 2153328 and id<>'2153328' order by id asc limit 5