He _____ as a national hero for winning the first gold medal for his country in the Olympics.

A．regarded

B．was regarded

C．has regarded

D．had been regarded

邮政网的特点决定了它必须从（），建立（）的网路指挥调度系统。

A.各局实际出发，自上而下

B.各局实际出发，自下而上

C.全网出发，自上而下

D.全网出发，自下而上