An administrator is configuring cross-site LVM and wants to ensure that logical volume copies are always onseparate disks. When creating a new logical volume， how could the administrator ensure that this requirement is achieved？（） ["Set the allocation policy to strict","Set the allocation policy to superstrict","Set the Maximum Number of Physical Volumes to 2","Set the Number of Copies for each logical partition to 2"]
联系实际评价城市空间分布理论中多中心模式的优缺点。
Evaluate this SQL statement: SELECT ename, sal, 12* sal+100 FROM emp; The SAL column stores the monthly salary of the employee. Which change must be made to the above syntax to calculate the annual compensation as "monthly salary plus a monthly bonus of $100, multiplied by 12"? （） [" No change is required to achieve the desired results."," SELECT ename, sal, 12* (sal+100) FROM emp;"," SELECT ename, sal, (12* sal)+100 FROM emp;"," SELECT ename, sal +100,*12 FROM em"]
北方某商业工程，建筑面积8000m2，施工单位为某施工总承包单位。框架结构，条形基础，地上4层，檐高18m。南侧与原有钢筋混凝土构筑物贴建，原有建筑物层高4m，屋面局部高低跨差1.2m。外墙采用双排钢管落地式脚手架，垂直运输工具为塔吊。施工总承包单位组建了项目部组织实施。 施工过程中发生了如下事件：
事件一：南侧外脚手架搭设高度达到6m后，项目部组织了验收，验收原有建筑物屋面局部高低跨差处发现高处的纵向扫地杆向低处延长一跨与立杆进行了固定；高低跨差1.2m；高跨处上方的立杆轴线到高跨构筑物外边线的距离800mm。要求作业班组整改。
事件二：脚手架施工过程中，监理单位巡检发现脚手架主节点处两个直角扣件的中心距200mm；横向水平杆靠墙一端的外伸长度是杆长的0.6倍，且超过500mm。
事件三：脚手架安装扫地杆时，安全总监发现纵向扫地杆固定在了距底座下皮250mm处的立杆上；横向扫地杆固定在了紧靠纵向扫地杆上方的立杆上。安全总监及时进行了纠正。
脚手架及其地基基础检查和验收阶段还应有哪些？
A customer recently purchased an IBM System Storage DS5020 with an attached expansion unitthat provides 9 TB of capacity. In speaking to their Business Partner， they are very interested invirtualizing their storage environment and would like to purchase a Storwize V7000 with anenclosure that will provide them with an additional 14 TB storage. Knowing that the customerwould like to integrate the DS5020 into their new virtualized storage environment， how much totallicensing should be sold？（） ["2 External Enclosure Licenses","9 TB to license the external capacity","23 TB to license all the storage capacity","2 Internal Enclosure and 2 External Enclosure License"]
小企业在国民经济中的作用和地位。
