光度法测定水中余氯,当水样中含有氧化锰时,可采用()法扣除。
A、过滤
B、脱色
C、校正
D、以水样作参比
参考答案:C
弗洛伊德在关于本我、自我、超我三者之间关系是,认为自我在人格结构中处于主导地位。
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.
(5)
A.away
B.into
C.back
D.down