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【简答题】
_____________ 也是一组32位二进制数字,它和IP地址配合,主要作用是声明IP地址的哪些位属于网络地址,哪些位属于主机地址。
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反馈参考答案：
举一反三
【单选题】It’s wise to find a place to travel ______ has a lot to present but hasn’t yet been hit by high price of admission as well as mass popularity．
A.
where
B.
that
C.
in which
D.
what
【单选题】Sally turned all of her pockets inside out only to find $ 1.87 _____ buy her daughter a present for Christmas.
A.
with what to
B.
with that she can
C.
in which to
D.
with which to
【单选题】Dissatisfied with his present condition, Peter wants to find another job _____ he could make use of what he has learned. [ ]
A.
which
B.
when
C.
that
D.
where
【简答题】Young people should travel not only to find out about the present 31 to find out about the future. A grand tour today should be the opposite of 32 it was in the past. It should not ...
【单选题】You will find a map of great ______ in helping you to get around London.
A.
price
B.
cost
C.
value
D.
usefulness
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