根据句意及首字母完成句子。

1.I like to s            on the ice.

2.He likes to s            on the snow.

3.I think her clothes are c           .

4.What are you going to do on your winter h           ?

5.There are some new words that I don't u           .

神经免疫学方面关于小胶质细胞的叙述正确的是（）

A.能合成上皮细胞生长因子

B.能合成IGF.和碱性成纤维细胞生长因子

C.能分泌白细胞介素-1和6

D.能分泌白细胞介素-8

E.能分泌多种细胞素