The president of Haiti said on TV that people in         country were making an effort to bring         end to poverty.

A．a; /

B．the ; the

C．the; an

D．/; an

单线半自动闭塞区段，车站办理闭塞前应（）。

A.报告列车调度员

B.确认区间空闲

C.与接车站联系

D.布置进路