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【单选题】
在计算机网络中，开放系统互联参考模型OSI共（）层。A.
5
B.
6
C.
7
D.
8
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反馈参考答案：
举一反三
【简答题】 的立方根是 的平方根是
【单选题】What is the benefit of speaking slowly? ___________ .
A.
You appear to be more confident and in control.
B.
Your articulation improves.
C.
It increases the ability of listeners to comprehend what you are saying.
D.
All of the above
【单选题】What is the benefit of speaking slowly? ___________ .
A.
It increases the ability of listeners to comprehend what you are saying.
B.
Your articulation improves.
C.
You appear more confident and in control.
D.
All of the above
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