—What do you think of the new law made by the government?

—As far as I'm concerned, it will ________ the peace and stability of our country.

A．reply to　

B．refer to

C．contribute to　

D．subscribe to

中枢神经系统有髓神经纤维的髓鞘形成细胞是（）。

A.原浆性星形胶质细胞

B.少突胶质细胞

C.小胶质细胞

D.施万细胞