脑血供属颈动脉系统的分支是（）

A.大脑前动脉和大脑中动脉

B.大脑后动脉和小脑上动脉

C.大脑中动脉和小脑下后动脉

D.小脑上动脉

E.小脑下后动脉

-Excuse me, could you tell me where the nearest post office is?

-The nearest post office? You will have to walk ____. [ ]

A. 500 metres away

B. 500 metre far

C. 500 metres farther

D. 500-metre far