颈正中线甲状腺区上方的球形肿块可能是()。
A.皮脂腺囊肿
B.淋巴结
C.甲状舌管囊肿
D.癌肿
E.上述任何一种都可能
参考答案:E
The room was so cluttered with books and papers that it was difficult to find the missing key.
A.disorganized
B.flattered
C.denounced
D.fixated
门静脉高压形成后,主要的病理变化可有()
A.脾肿大,脾功能亢进
B.肾衰竭
C.食管、胃底静脉曲张
D.腹水
E.黄疸