无功功率和有功功率有什么区别？
外来物种主要具有传播能力强、对环境条件适应性强、（）的生态学特征。
如果产权比率为50%，则资产负债率为（）。 ["42.86%","40%","33.33%","28.57%"]
You design a Business Intelligence （BI） solution by using SQL Server 2008. The solution includes a SQL Server 2008 Analysis Services （SSAS） database. The database contains a data mining structure that uses a SQL Server 2008 table as a data source. A table named OrderDetails contains detailed information on product sales. The OrderDetails table includes a column named Markup. You build a data mining model by using the Microsoft Decision Trees algorithm. You classify Markup as discretized content. The algorithm produces a large number of branches for Markup and results in low confidence ratings on predictable columns. You need to verify whether the Markup values include inaccurate data. What should you do？ （） [" Modify the content type of Markup as Continuous."," Create a data mining dimension in the SSAS database from OrderDetails."," Create a data profile by using SQL Server 2008 Integration Services （SSIS）."," Create a cube in SSAS. Use OrderDetails as a measure group. Recreate the data mining structure and mining model from the cube data."]
宗教区别于其他社会文化现象的最根本的标志是（）。 ["有一套价值观和行为规范体系","对超自然、超人间力量的崇拜和信仰","有完整的组织体系和一系列隆重的仪式","宣传惩恶扬善"]
试述革命诗潮诗人的作品在诗界革命发展中的作用与意义。
