属于自身免疫性结缔组织病的是（）

A.脂膜炎

B.硬皮病

C.红斑狼疮

D.皮肌炎

E.银屑病

Every device () in the spacecraft must be designed and made with great care so as to be sure that nothing goes wrong in operation.

A. to be fitted

B. fitted

C. fitting

D. to have been fitted