最常见的肝脏良性肿瘤是()
A.肝血管瘤
B.肝细胞腺瘤
C.肝局灶性结节增生
D.肺癌
E.结肠癌
F.肝癌
参考答案:A
空白支票分为______和______两类。
Frames to which the tank top and bottom shell are fastened are called().
A.floors
B.intercostals
C.stringers
D.tank top supports