It is estimated that there are more than 40 universities in Britain--nearly ____ in 1960.

A．as twice many as

B．as many twice as

C．twice many as

D．twice as many as

下列服务器的叙述，不正确的是( )。

A．网络服务器是微机局域网的核心部件

B．网络服务器最主要的任务是对网络活动进行监督及控制

C．网络服务器在运行网络操作系统中，最大限度响应用户的要求并及时响应并处理

D．网络服务器的效率直接影响整个网络的效率