对类风湿关节炎疼痛缓解作用较差但能阻止关节破坏的药物是（）

A.布洛芬

B.甲氨蝶呤

C.雷公藤多苷

D.干扰素

E.泼尼松

I'd like to live somewhere（）the sun shines all year long.

A. which

B. that

C. where

D. in which