痛风出现（）

A.双手近指关节骨质破坏

B.肾淀粉样变性

C.尿酸盐沉积

D.骶髂关节间隙模糊

E.反复腮腺肿痛

Mr. Black decided to give up his farm and devoted all his time to _____ those children living on the street.

[      ]

A. help

B. being helped

C. be helping

D. helping