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【单选题】
建立计算机网络的最主要目的是()。A.
提髙运算速度
B.
提髙内存容量
C.
共享资源
D.
提髙计算精度
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反馈参考答案：
举一反三
【简答题】are helped a lot in our country.
【单选题】-Our country_ a lot so far. -Yes, I hope it will be even_.
A.
has changed;well
B.
changed;good
C.
has changed;better
D.
changed;better
【单选题】Our country has changed a lot over the years. And every Chinese our mother land. [ ]
A.
are proud of
B.
is proud of
C.
takes proud in
D.
take proud in
【单选题】Within five years，cars will be a lot in our country．
A.
cheap
B.
cheaper
C.
cheapest
D.
the cheapest
【单选题】Our country did a lot about the drunk-driving, and it took some time ____ the situation got better.
A.
after
B.
since
C.
unless
D.
before
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