门静脉血流占全肝血流的().
A.80%~90%
B.60%~80%
C.40%~60%
D.30%~40%
E.10%~30%
参考答案:B
Only by working hard and never giving up our goals.
A.we can achieve
B.can we achieve
C.will we win
D.we will win
腹主动脉瘤样扩张的最常见的形状是()
A.梭形
B.球形
C.内膜瓣形
D.壁间形