某项目在施工过程中，出现了严重的质量隐患，但由于施工单位技术人员的经验不足，没有及时发现，结果出现了质量事故。这种风险属于施工管理风险类型中的（）。 经济与管理风险。 组织风险。 工程环境风险。 技术风险。
In addition to better overall price performance， which other factor most significantly contributes to a lower three-year TCO advantage for a pSeries customer than for a SUN customer？（） Sharing commonly used peripherals。 Maximum capacity of CPU， Memory and I/O。 Minimum number of processors in a partition。 Support for different versions of the operating system。
价值管理不仅能够给企业带来现实的经济利润，而且还可以通过价值管理的应用提高企业职工的创造力，培养相互协作的团队精神，形成卓越的理念。
You backed up the database at 8 a.m. today using an online backup. Accounting made a large change to the underlying data between 10 a.m. and noon. Which of the following actions would ensure that the changes could be recovered using the 8 a.m. backup？（） Create a manual incremental online database backup.。 Back up all the archived redo logs generated since the 8 a.m. backup.。 Create a brand-new backup after all the changes have been applied.。 There is no way to make the changes recoverable based on the 8 a.m. backup.。 Perform an online backup of the tablespace（s） that contained changed data.。
管道法兰连接，应检测法兰间的电阻值小于（）Ω。 0.05。 0.04。 0.03。 0.01。
按GB7588-2003《电梯制造与安装安全规范》规定，电梯额定（）速度时，应用渐进式安全钳装置。
