焊接层数由（）决定。 焊件的厚度。 焊接电流。 焊条直径。 电弧电压。
数据库特殊权利保护标准，是在数据库内容的收集、组合、证明、组织或表现上有数量的或质量的实质性的（）投入。 人力。 技术。 财力。 其他资源的。
You manage a computer running Windows 2000 Professional that belongs to a workgroup. You create a new user account （Tony） on that computer that is not a member of the Administrators group. You log on using the new account. You create a file with notepad in a folder that is on a volume formatted with NTFS. You encrypt the file. You give another user account defined on that computer， Luis the permission to take ownership of the file. Luis logs on using the account and takes ownership. However， she receives an error message reporting that access is denied when she tries to open the file. What can you do to allow Luis to open the file？（） Instruct Luis to decrypt the file before she tries to open it.。 Log on with the account Tony and decrypt the file.。 Move the file to a folder that is not encrypted on a different volume that is formatted with NTFS.。 Move the file to a folder that is not encrypted on the same volume.。
工程造价的第一种含义是从（）角度定义的。 建筑安裝工程承包商。 建筑安裝工程发包商。 设备材料供应商。 建设项目投资者。
党的根本组织原则是（）。 少数服从多数原则。 个人服从组织原则。 民主集中制原则。 多数服从少数原则。
可能造成皮带接头断的原因有（）。
