单项选择题 A．腹膜的卵圆形裂隙 B．腹横筋膜的卵圆形裂隙 C．腹外斜肌腱膜的三角形裂隙 D．腹横肌的卵圆形裂隙 E．腹股沟韧带下方的漏斗形间隙腹股沟管的内环是( )

单项选择题 根据工程勘探设计中必须执行建设标准强制性条文的概念，请回答下列供配电系统设计规范中有关电源设置的问题。根据负荷分级的要求，中断供电将造成人身伤亡时，应为( )级负荷。

单项选择题 Generally, data mining (sometimes called data or knowledge discovery) is the process of analyzing data from different perspectives and (1) it into useful information information that can be used to increase revenue, (2) costs, or both. Data mining software is one of a number of analytical tools for analyzing data. It (3) users to analyze data from many different dimensions or angles, categorize it, and summarize the relationships identified. Technically, data mining is the process of finding correlations or patterns among dozens of fields in large relational databases. Although data mining is a (4) new term, the technology is not. Companies have used powerful computers to sift through volumes of supermarket scanner data and analyze market research reports for years. However, continuous innovations in computer processing power, disk storage, and statistical software are dramatically increasing the accuracy of analysis while driving (5) the cost.A．organizingB．summarizingC．composingD．constituting