题目内容

医学研究中，反映一组血清抗体滴度资料的平均水平。常选用（）

A. 算术均数
B. 四分位数间距
C. 几何均数
D. 极差
E. 变异系数

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Your company has a main office and three branch offices. The network consists of a single Active Directory domain. Each office contains an Active Directory domain controller. You need to create a DNS infrastructure for the network that meets the following requirements： èThe DNS infrastructure must allow the client computers in each office to register DNS names within their. respective offices. èThe client computers must be able to resolve names for hosts in all offices. What should you do？（）

A. Create an Active Directory-integrated zone at the main office site.
B. Create a standard primary zone at the main office site and at each branch office site.
Create a standard primary zone at the main office site. Create a secondary zone at each branch office site.
D. Create a standard primary zone at the main office site. Create an Active Directory-integrated stub zone at each branch office site.

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医学研究中，反映一组血清抗体滴度资料的平均水平。常选用（）

A. 算术均数 B. 四分位数间距 C. 几何均数 D. 极差 E. 变异系数

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商事行为的特征是什么？

A. 算术均数
B. 四分位数间距
C. 几何均数
D. 极差
E. 变异系数