珊瑚礁有（）、（）和（）三种类型。
You design a Business Intelligence （BI） solution by using SQL Server 2008. You create a SQL Server 2008 Integration Services （SSIS） package to perform an extract， transform， and load （ETL） process to load data to a DimCustomer dimension table that contains 1 million rows. Your data flow uses the following components： A SQL Destination data flow task to insert new customers An OLE DB Command transform that updates existing customers On average， 25 percent of existing customer records is updated each night. You need to reduce the amount of time required to update customer records. What should you do？（） Modify the UPDATE statement in the OLE DB Command transform to use the PAGLOCK table hint. 。 Modify the UPDATE statement in the OLE DB Command transform to use the TABLOCK table hint. 。 Stage the data in the data flow. Replace the OLE DB Command transform in the data flow with an Execute SQL task in the control flow.。 Stage the data in the data flow. Replace the UPDATE statement in the OLE DB Command transform with a DELETE statement followed by an INSERT statement.。
法医尸体检验的目的是（） 确定死因。 鉴别暴力死或非暴力死。 判断自杀、他杀或灾害事故。 确定毒物性质及其含量。 推断死亡时间。
You have a single Active Directory domain. AlI domain controllers run Windows Server 2008 and are configured as DNS servers. The domain contains one Active Directory-integrated DNS zone. You need to ensure that outdated DNS records are automatically removed from the DNS zone. What should you do（） From the properties of the zone， enable scavenging.。 From the properties of the zone， disable dynamic updates.。 From the properties of the zone， modify the TTL of the SOA record.。 From the command prompt， run ipconfig /flushdns.。
分析计算复杂电路中某个分支的电流或功率时，常用（）。 基尔霍夫定律。 叠加定理。 戴维南定理。 欧姆定律。
王某通过房屋抵押向甲银行贷款购买了一套价值100万元的房屋，王某自付30万元，贷款70万元。一年后王某偿还贷款20万元。那么，此时银行对房屋的保险利益额度是（）
