Organizations perform work to achieve a set of objectives．Generally, work can be categorized as either projects or operations, although the two sometimes are （67）.

A．confused

B．same

C．overlap

D．dissever

最可能的CT诊断为（）

A．中心型肺癌

B．周围型肺癌

C．淋巴瘤

D．炎性假瘤

E．肺结核