题目内容
125I粒子的半衰期为
2021-09-30
A.10天
B.30天
C.60天
D.90天
E.120天
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='24731' and id < 2118302 and id<>'2118302' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='24731' and id > 2118302 and id<>'2118302' order by id asc limit 5