煤气中一氧化碳含量越高中毒的可能性越大，下列煤气中，中毒危险性从高到低是（）。 ["焦炉煤气、转炉煤气、高炉煤气","转炉煤气、高炉煤气、焦炉煤气","高炉煤气、转炉煤气、焦炉煤气"]
All servers on your companys network run Windows Server 2008 R2. All users have thin client computers. You need to recommend a virtualization solution that allows users to use applications that run only on Windows 7. Which technology should you recommend？（） ["Windows Virtual PC","Microsoft Application Virtualization （App-V）","Microsoft Virtual Desktop Infrastructure （VDI）","Microsoft Enterprise Desktop Virtualization （MED-V）"]
企业的定价方法主要有（） ["成本导向定价","政策导向定价","需求导向定价","竞争导向定价","促销导向定价"]
手工钨极氩弧焊的电极材料有几种，铈钨极有何特点？
You are the desktop administrator for your company. You install Windows XP Professional on a new portable computer that will be used by one of the company's software developers. You test the computer after you complete the installation and find out that the computer functions properly. The computer contains a 6-GB hard disk and a removable 4-GB hard disk. The 6-GB hard disk is configured as drive C, and the removable hard disk is configured as drive D. You install Windows 98 on drive D and deliver the computer to the software developer. The software developer reports that the computer does not start when drive D is not connected. Instead, the computer briefly displays an operating system menu, and then it displays an error message stating that an operating system could not be found. When drive D is connected, the computer starts Windows 98. You need to configure the computer so that it starts Windows XP Professional whether or not drive D is connected. What should you do?（） ["Modify the computer's BIOS so that it automatically detects whether drive D is connected.","Modify the computer's BIOS so that drive C is first in the computer's boot order. ","Modify the Boot.ini file on the computer by changing the default= entry to the following value: multi(0)disk(0)rdisk(0)partition(1)="Microsoft Windows XP Professional" \/fastdetect.","Modify the Boot.ini file on the computer by changing the entry for Windows 98 to the following value: D: "Microsoft Windows 98" \/fastdetect."]
简述人际关系理论提出的几条原则？
