27. The number of traffic accidents caused by drinking is ________ as the number of those caused by non-drinking driving.

A．twice as many

B．many as twice

C．as twice large

D．twice as large

从国家最高决策权来说，英国的公共决策体制属于（）。

A.议会制

B.总统制

C.委员会制

D.首长制