单项选择题

Internet, a ________ of millions of computers linked world wide, is the largest system serving e - mail messengers.

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

单项选择题
We hadn’t expected a power cut so we were astonished when the whole house was ________ into darkness.
A．dived
B．plunged
C．drowned
D．dropped
单项选择题
Once our hens started laying eggs, we had such a ________ of eggs that we were giving many away to our neighbors.
A．output
B．surplus
C．production
D．plenty
相关试题