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【简答题】
2011年上半年,我国网络应用排名第一的是( ) A. B. 即时通信 B. C. 网络新闻 C. D. 网络购物
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反馈参考答案：
举一反三
【单选题】ITU-T定义的SDH段开销中，使用者通路字节是哪个？它符合ITU-T的哪个建议（）.
A.
1/G.707
B.
E1/G.709
C.
F1/G.707
D.
F1/G.709
【单选题】We learn from the passage that the author would ______ to prevent similar experience from happen-ing again.
A.
write to the agency
B.
change her name
C.
avoid traveling abroad
D.
do nothing
【单选题】According to the writer, knowledge gained from practical experience is ______.
A.
as important as that from books
B.
less important than that from books
C.
more important than that from books
D.
too limited to Use
【单选题】The main lesson _____ from the experience with BSE is that openness is all important.
A.
to be learned
B.
learning
C.
learns
D.
having learned
【单选题】You must try some of her home-made wine and it’s quite ____ experience! I know from ____ experience it is very good.
A.
the; the
B.
an; an
C.
an; /
D.
/;an
【简答题】People will experience greater influence from jet lag if they travel ______.
【简答题】microRNA长度约 个核苷酸。
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