在乳腺癌半野切线等中心定位时，调节X轴使射野的外界开放，如果是保乳后放疗或需加补偿物时，射野外界一般游离出皮肤外

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='29151' and id < 2371490 and id<>'2371490' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29151' and id > 2371490 and id<>'2371490' order by id asc limit 5