简述理论上对公司设立行为性质的3种不同学说。
You have a computer that runs Windows XP Professional. The computer is part of a workgroup. You need to configure advanced NTFS permissions on a folder stored on the computer. What should you do first? （） ["Run cipher.exe.","Disable simple file sharing.","Enable folder encryption for the folder.","Request that an administrator adds your user account to the local Power Users group."]
孙文越飞宣言
工程变更和（）是影响工程价款结算的重要因素，也是施工成本管理的重要内容。
生产运作管理的目标是高效、灵活、（）地生产合格产品或提供满意服务。 ["安全、环保","盈利、快速","准时、清洁","可靠、稳定"]
简述影响注意力涣散时的主要表现
