因为蜗杆实际上是一个螺杆，所以蜗杆传动平稳，而且无噪音。
In your production database， data manipulation language （DML） operations are executed on theSALES table. You have noticed some dubious values in the SALES table during the last few days. Youare able to track users， actions taken， and the time of the action for this particular period but the changesin data are not tracked. You decide to keep track of both the old data and new data in the table along withthe user information. What action would you take to achieve this task（） ["Apply fine-grained auditing.","Implement value-based auditing.","Impose standard database auditing to auditobject privileges.","Impose standard databaseauditing to audit SQL statements."]
下列不属于我国网络隐私权保护立法原则的是（） ["资料内容正确原则","公开原则","个人参与原则","公平原则"]
直流电源线、交流电源线、信号线必须分开布放。应避免在同一线束内。电缆走线应将直流线、交流线与信号线分开布放，至少在（）mm以上 ["20","30","50","100"]
Which two statements are true about the Oracle Enterprise Manager （OEM） ？（） [" OEM can do management and monitoring across multiple WLS Domains"," OE is a unified solution for management and monitoring across entire architecture - Web Tier， App Tier & DB Tier"," OEM is focused solely on Oracle solutions， cannot manage 3rd party products"," OEM includes tools to configure the operating system"]
试述教师在游戏的现场指导中如何把握好与儿童的互动节奏？
