GB 50174-2009《电子信息系统机房设计规范》将电子信息系统机房根据使用性质，管理要求及其在经济和社会中的重要性进行了级别规划。以下关于级别划分的叙述中，正确的是（）。

Human resource management is the management of human resources. It is function in organization designed to maximize employee         in service of an employer’s strategic objectives.

For any information system to serve its purpose,the information must be () when it is needed.

（）is a project management technique for measuring project performance and progress.It has the ability to combine measurements of the project management triangle: scope , time and costs.

（ ） :refers to the application of the internet and other informatio technology in conventional industries.It is an incomplete equation where various Internets (mobile Internet,cloud computing,big data or Internet of things) can be added to other fileds, fostering new industries and business development.

通过招标过程确定中标人后，实施合同内的合同价款应为（）

（）：The capability provided to the consumer is to use the provider’s applications running on a cloud infrastructure,The applications are accessible from various client devices through either a thin client interface, such as a web browser (e.g.,web-based E-mail),or a program interface.

数字签名技术属于信息系统安全管理中保证信息（）的技术。

（）不属于知识产权的基本特征。

某项目承包者预计该项目有0.5 的概率获利200000 美元。0.3 的概率亏损50000 美元，还有0.2 的概率维持平衡。该项目的期望货币价值为（）美元。

风险预测从两个方面来评估风险，即（）和风险发生可能带来的后果。