某办公楼幕墙工程28层，正立面为单元式玻璃幕墙5600m2，其他部位为石材12000m2和金属幕墙4700m2、明框玻璃幕墙6000m2，采用钢化中空玻璃，幕墙的开启扇采用隐框玻璃上悬窗。
施工过程中，发生了如下事件：
事件一：单元式玻璃组件采用之江牌硅酮结构密封胶。安装过程中金属扣盖采用白云牌硅酮耐候密封胶。层问防火封堵采用白云牌硅酮耐候密封胶。避雷接地每4层做均压环与连接主体接地体有效连接。
事件二：玻璃幕墙工程质量验收划分为11个检验批，每个检验批每500m2抽查一处，每处1Om2。检测报告的石材弯曲强度为7.OMPa，吸水率为1%。石材幕墙采用的铝合金挂件厚度为3.Omm。监理工程师认为存在错误，责令整改。指出玻璃幕墙工程质量验收划分的不妥之处？分别写出正确做法。
The EMPLOYEES table contains these columns: LAST_NAME VARCHAR2 (25) SALARY NUMBER (6,2) COMMISSION_PCT NUMBER (6) You need to write a query that will produce these results: 1. Display the salary multiplied by the commission_pct. 2. Exclude employees with a zero commission_pct. 3. Display a zero for employees with a null commission value. Evaluate the SQL statement: SELECT LAST_NAME, SALARY*COMMISSION_PCT FROM EMPLOYEES WHERE COMMISSION_PCT IS NOT NULL; What does the statement provide? （） All of the desired results。 Two of the desired results。 One of the desired results。 An error statement。
中断供电将造成较大经济损失的，应属于（）负荷。
以下各项中属于认知策略（不含元认知策略）的是（）。 精细加工策略。 计划策略。 监视策略。 调节策略。
A medium-sized company with 500 employees has a rapidly growing storage infrastructure with clustered mail， database， and file and print core business applications running on six servers. Using current direct attached SCSI storage pools to each server leads to inefficient utilization of storage space.They also have a backup device attached to each server. They want to consolidate their storage and backup infrastructure into a scalable， high availability and high performance solution. The customer’s top priorities are performance， cost， and availability. Which of the following backup solutions best satisfies the customer requirements？（） A DS4000 SAN with flash copy enabled for volume mirroring。 An iSCSI solution with dedicated backup server with SCSI attached tape library。 A NAS solution with SCSI direct attached tape library with dedicated backup network。 A DS4000 SAN with fibre channel attached tape library solution with dedicated backup zone。
《电力建设安全生产监督管理办法》规定，电力勘察（测）单位、设计单位、监理单位的主要负责人、项目负责人、安全生产管理人员等应当按照国家有关规定（），方可上岗。
