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合同双方当事人依法对已经生效但尚未履行或尚未完全履行的合同内容和条款进行修改或增减的行为是()。
You are a professional level SQL Server 2005 database administrator in an international corporation named Wiikigo. You are experienced in implementing high-availability solutions, monitoring the database server, and design deployment. In the company, you major job is the deployment, maintenance and support of Microsoft SQL Server 2005. You work as a database administrator for your company. A SQL Server 2005 application is utilized by the company. A query is executed by the application to return three columns of the nvarchar data type and one column of the XML data type. A WHERE clause is utilized by the query, and all three of the nvarchar columns are contained by the WHERE clause. 5 million rows are included by the table, and 50,000 rows are returned by the query. The performance of the query should be enhanced. Which action should be performed to achieve the goal?()
脚手板可采用钢、木、竹材料制作,单块脚手板的质量不宜大于30kg。木胶板应符合国家标准GB 50005中材质的规定。构件的材质等级分为3级,分别是()。
什么是计算机数据采集系统?
下列有关社区护理特点的叙述,不正确的是()
列车乘务员出乘点名的规定有:列车长召开出乘会,布置趟计划。
薤白具有的功效是()
A1类施工的施工负责人及司机必须在批准的作业开始时间前()小时到达车辆段或车站,做好检车作业。
成人脊髓下端平对()下缘。
检察监督是()通过行使检察权依法对公安机关及其人民警察遵守和执行法律的情况进行的法律监督。
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