题目内容

关于CEA说法正确错误的是

A. 是一种广谱的肿瘤标记物
B. 与多种肿瘤有关，特别是消化道肿瘤
C. 有较高的假阳性和假阴性，不适合做肿瘤的普查
D. 消化道肿瘤术后复发或转移，CEA常升高
E. 以上都对

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