— What do you think of your job, Lin Tao?

— Wonderful! _____ is an honour to serve the guests from around the world at the Expo. [ ]

A. This

B. It

C. Its

D. That

Good-Pasturc综合征常见的免疫病理特征是（）

A.IgG和C3呈线条状沉积于毛细血管壁

B.IgG和C3呈细颗粒状沿毛细血管壁沉积

C.IgG和C3呈颗粒状沉积于系膜区及毛细血管壁

D.无或仅微量免疫复合物

E.IgG、IgA、IgM、C3呈多部位沉积