题目内容

以下是样本统计量的有()。

A. 样本平均数
B. 样本比例
C. 样本标准差
D. 样本方差

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玉米田的主要杂草之一有()。

A. 异形莎草
B. 水棘针
C. 水葫芦
D. 牛毛毡

以下不属于广告的特征的是()。

A. 目的性
B. 系统性
C. 适应性
D. 效果性

“但愿人长久,千里共婵娟”有何含义?

You have an Exchange Server 2010 organization. You need to recommend a solution that prevents the permanent deletion of e-mail messages from the mailboxes of employee who have been dismissed from the company. What should you recommend?()

A. Implement managed folders.
B. Implement a legal hold for each mailbox.
C. Implement a Retention Policy for each mailbox.
D. Implement an Outlook Protection Rule for each mailbox.

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