关于日光性角化症，叙述正确的有（）

A.日光、紫外线、放射性热能、电离辐射等可诱发本病

B.好发于日光暴露部位

C.AK可发展为侵袭性SCC

D.可以累及附属器上皮

E.肥厚型AK临床和组织病理学与鳞状细胞癌很难区分

—How did the global financial crisis ________？

—I’m not quite sure. Anyhow, it is a very important problem facing us.[ ]

A. come up        

B. come about      

C. come along        

D. come around