哪项是所有精确放射治疗的基本特征，也是开展适形放射治疗的首要条件之一

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='29522' and id < 2401383 and id<>'2401383' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29522' and id > 2401383 and id<>'2401383' order by id asc limit 5