单项选择题
A.原发性肝癌 B.肝脏炎性假瘤 C.局灶性结节增生 D.转移性肝癌 E.肝囊肿
A.听眉线25° B.听眶线25° C.听眉线20° D.听眶线20° E.听眶线10°
A.2.5mm B.5mm C.10mm D.15mm E.20mm