单项选择题
A.CA50 B.CA15-3 C.CA19-9 D.CA125 E.CA72-4
A.10 B.40 C.80 D.120 E.150
A.5% B.10% C.15% D.20% E.25%
A.胃癌 B.结直肠癌 C.胰腺癌 D.卵巢癌 E.乳腺癌
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