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【单选题】
广域网(WAN)是跨越很大域范围的一种计算机网络,下面关于广域网的叙述中,正确的是()。A.
广域网是一种公用计算机网,所有计算机都可以无条件地接入广域网
B.
广域网使用专用的通信线路,数据传输速率很高
C.
广域网能连接任意多的计算机,也能将相距任意距离的计算机互相连接起来
D.
广域网像很多局域网一样按广播方式进行通信
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举一反三
【简答题】Where their eating habits have changed,however,and where they have become very similar,is in what happens when people go out to eat.
【单选题】As our eating habits changing, choosing what______is no longer as easy as it once was.
A.
eat
B.
eaten
C.
to eat
D.
to be eating
【简答题】Our eating habits are very important for good health and a strong body. There are times when most of us would have sweets and ice-cream rather than eat meat and rice. Sweets and ice-cream are not bad ...
【单选题】As our eating habits are changing，choosing what is no longer as easy as it once was．
A.
eat
B.
eaten
C.
to eat
D.
to be eating
【单选题】Our eating habits have changed, ______ has our way of life.
A.
like
B.
as
C.
but
D.
nor
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