四冲程发动机在一个工作循环过程中曲轴转动几圈，凸轮轴转动几圈，各缸进排气门各开启几次（）。 ["1、1、1","1、2、1","2、1、1","2、1、2"]
《给水排水管道工程施工及验收规范》（GB50268-2008）在埋地管道基础上，增加了桥管管道、（）、水下埋设管道等内容。
定向进化按照进化对象的不同，可以分为（），（）。
事物运动是有规律的要求我们按客观规律办事，才能成功。
You are preparing for an upgrade of Windows 2000 Professional using Remote Installation Services （RIS） on a member server， which is in the Installation organizational unit （OU）. You loaded the RIS software and all images for the Windows 2000 Professional computer types into a shared NTFS version 5 volume. You distributed a remote installation boot disk to all users in case their adapter doesn’t support PXE boot ROM and doesn’t have BIOS support for using the PXE boot ROM as the primary boot device. The users report that they are unable to install Windows 2000 Professional. What do you need to do in order to resolve the problem？（） [" Include the users who will do the install in the Installation OU where the RIS server object is located. Assign them rights to "Bypass traverse checking." ","Load the Windows 2000 Professional images onto the server's boot drive, which is a separate hard disk from the RIS software. ","Create a security group for the users who will do the installation and assign the group "Log on as a batch job" rights. Assign the group permission to create computer accounts. ","Reinstall the RIS software on a domain controller in a shared volume and modify the boot disks to map to the shared volume.&e"]
制定教育目的有何意义？
