A.血管殘端包埋不徹底 B.癌細胞血運轉(zhuǎn)移 C.手術(shù)野不清晰 D.引起大出血
A.60~3.5mm B.45~3.1mm C.45~2.5mm D.60~4.2mm
A.60~4.0mm B.45~3.8mm C.60~4.8mm D.45~2.5mm