下列征象中，哪一项对周围型肺癌的诊断价值最大（）
A.分叶和毛刺
B.空洞
C.钙化
D.肺门或纵隔淋巴结肿大
E.无卫星病灶
参考答案：A
______形成电流．
--You have a beautiful voice.
--_______________ [ ]
A. Don't make fun of me
B. Just so so
C. No, you can't say so
D. That's very kind of you to say so
