男，52岁，贲门癌术后3年，肝脏CT增强扫描如图所示，考虑的疾病为（）

A.贲门癌肝转移

B.原发性肝细胞癌

C.肝海绵状血管瘤

D.多囊肝

E.肝囊肿

Which type of unemployment describes a situation where workers who have been laid off due to economic changes and they are unable to find work due to a lack of education or the necessary skills to move into another available job（）

A. Structural.

B. Frictional.

C. Cyclical.