简述生物转化的毒理学意义。
信息生命周期解决方案关注的前4个方面是（） ["文件的生命周期管理，数据库和应用的归档，分层存储，数据的持久保存","文件的生命周期管理，数据库和文件的归档，邮件归档，内容管理","归档数据管理，管理非活跃数据，法规遵从管理，分层数据存储","邮件归档，内容管理，数据持久保留，分层数据存储"]
思维
A customer needs an Oracle Database Server. Based on the customer’s sizing data， the IBM Oracle Competency Center has determined that the server requirements can be met with a 4-way p5-550 or a 4-way p5-570. If the pSeries technical specialist proposes a p5-570 versus a p5-550 system， what key differences should be pointed out to the customer？（） ["The p5-570 is rack mounted but the p5-550 is not.","The p5-570 will provide more growth， but at a higher cost.","The p5-570 is 200-240 volt only and the p5-550 is 110 volt only.","The p5-570 needs a special feature to become a deskside machine."]
可燃性液化气体比易燃液体的燃烧危险性要（）。 ["小","相当","大","大得多"]
变流器空开闭合测试条件.
