下列方法中，不属于明龙骨吊顶饰面板的安装方法是（）。 搁置法。 钉固法。 嵌入法。 卡固法。
叙述成本法应用的前提条件。
在常用的数据控件中，只需指定DataSource而不需指定DataField的控件有哪些？
Which three statements are true about adaptive SQL plan management?（） It automatically performs verification or evolves non-accepted plans, in COMPREHENSIVE mode when they perform better than existing accepted plans.。 The optimizer always uses the fixed plan, if the fixed plan exists in the plan baseline.。 It adds new, bettor plans automatically as fixed plans to the baseline.。 The non-accepted plans are automatically accepted and become usable by the optimizer if they perform better than the existing accepted plans.。 The non-accepted plans in a SQL plan baseline are automatically evolved, in COMPREHENSIVE mode, during the nightly maintenance window and a persistent verification report is generated.。
对于承受水平力的水利工程，应进行水平位移观测；有防渗要求的需进行（）的观测 正常蓄水位。 防洪高水位。 设计洪水位。 测压管水位。
You work as a database administrator for Certkiller .com. According to your backup strategy， you performed an incremental level 0 backup of your database. Which statement regarding this backup is true？（）
