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阶级及其实质是什么

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浙江景宁惠明茶产于景宁县山区,南宋就被列为贡品,称“惠明御茶”。

A. 正确
B. 错误

质权人办理质押登记前应与出质人签订协议。协议应载明以下内容()。

A. 质权人与出质人已签订质押合同
B. 由质权人办理质押登记
C. 质押合同的所有内容
D. 出质人和质权人双方签字盖章

在工业过程控制系统中采集的数据常搀杂有干扰信号,()提高信/躁比。

A. 只能通过模拟滤波电路
B. 只能通过数字滤波程序
C. 可以通过数字滤波程序/模拟滤波电路
D. 可以通过数字滤波程序和模拟滤波电路

You work in a company which uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. There are queries that have an estimated execution cost less than 3. You intend to configure the instance, make it use a single thread for these queries. In the options below, which sp_configure configuration option should you set?()

A. You should set query governor cost limit
B. You should set cost threshold for parallelism
C. You should set priority boost
D. You should set precompute rank

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