早期肝癌是指( )
A.肿瘤直径或直径之和小于1cm,数目不超过4个
B.肿瘤直径或直径之和小于2cm,数目不超过3个
C.肿瘤直径或直径之和小于3cm,数目不超过2个
D.单个肿瘤,直径小于5cm,未发生转移
正确答案是C
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