China won 100 medals in the Beijing Olympic Games, which is almost _____they won at the Sydney Olympic Games.

A．twice as many as

B．as many as twice

C．as much as twice

D．twice as much as

涉外类客流的特点是（）。

A.用车时间集中

B.流向较稳定

C.流时不集中

D.用车地点集中

E.受航班影响

F.受季节影响