—Which one would you like to work for in the following groups, Li Mei?

—Let me see. I'd like to work for _____ because this group helps children in poor countries. [ ]

A. Greenpeace

B. NBA

C. UNICEF

D. WTO

铸造舌板的要求正确的是（）

A.板上缘止于余留牙的颈缘处，前牙在舌隆突以下

B.板上缘位于余留牙的导线以上，前牙在舌隆突以上

C.舌板不能进入下前牙的邻间隙，便于取戴

D.舌板的厚度为0.8～1.0mm

E.舌板下缘要求薄而锐，异物感小