题目内容
关于宫颈癌常规体外放射野的范围不正确的说法是
2021-12-09
A.上界相当于第5腰椎上缘
B.外界在真骨盆最宽径外1〜2cm
C.下界在宫颈的下缘
D.后界包括全部骶骨
E.前界在耻骨联合前缘
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