对来访者使用对质的前提条件是（） 正确。 错误。
You are the network administrator for TestKing. The network consists of a single Active Directory domain that contains five member servers running Windows 2000 Server. All five servers have CD-ROM drives and floppy disk drives. You purchase a new computer that has a CD-RW drive. This computer does not currently have a floppy disk drive, but you plan to install one eventually. You install and configure Windows Server 2003 and Recovery Console on the new computer. You configure it as a member server named Testking6. Now you need to ensure that Testking6 can be restored in the event of an operating system failure. Which two actions should you perform? （）(Each correct answer presents part of the solution. Choose two.) 正确。 错误。
商业银行最忌讳的是贷款发放过于集中，这种集中表现在（）。 正确。 错误。
把信息和其载体在法律上分开来成为可能，信息成为法律上独立的物，意味着信息可以作为交易的标的物。 正确。 错误。
高新技术企业的研究开发人员包括（）。 正确。 错误。
既使与签署目的相适应的安全的电子签名，也不具有与书写签名同等的效力。
