题目内容
电话或信函调查，易发生
2021-10-09
A.入院偏倚
B.现患-新发病例偏倚
C.检出症候偏倚
D.无应答偏倚
E.志愿者偏倚
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='25151' and id < 2134438 and id<>'2134438' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25151' and id > 2134438 and id<>'2134438' order by id asc limit 5