题目内容
放疗摆位中铅挡块与体表野(E线)的允许精度为
2021-12-11
A.±0.1cm
B.±0.2cm
C.±0.3cm
D.±0.4cm
E.±0.5cm
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='29413' and id < 2395111 and id<>'2395111' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29413' and id > 2395111 and id<>'2395111' order by id asc limit 5