肝转移瘤的诊断依据主要有().
A.有原发肿瘤病史
B.肝内有单发或多发病灶
C.病灶呈“牛眼”征
D.肝回声均匀
E.病灶有宽的晕环
参考答案:A, C, D, E
—Why are you smiling at me?
— You look ______ in that hat.
A.accurate
B.original
C.positive
D.absurd
扩张静脉和动脉,起效快,维持短的是
A.硝酸甘油B.肼屈嗪C.哌唑嗪D.硝苯地平E.硝普钠