单项选择题

The largest system serving e-mail messengers is the Internet, a______ of millions of computers linked worldwide.

A．unity
B．combination
C．network
D．connection
<上一题 目录 下一题>
热门 试题

单项选择题
Advertising is distinguished from other forms of communication______ the advertiser pays for the massage to be delivered.

A．whereas
B．in that
C．which
D．because of
单项选择题
My advice is: only wear such clothes______ really necessary.
A．as they are
B．as are
C．as is
D．as it is
相关试题