题目内容
关于转移性骨肿瘤的表述，错误的是
2021-10-14
A.发病率高于原发性骨肿
B.多发于青壮年
C.大部分为癌性转移
D.转移灶多发于胸骨、脊椎骨等躯干骨
E.多发病灶有助于骨转移瘤的诊断
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