简述意志行为的心理过程的两个阶段？
You have a server named Server1 that runs Windows Server 2003 Service Pack 2 (SP2). Server1 runs a custom application. Users report that the performance of Server1 has decreased significantly during the last 30 minutes. You need to identify the current processor and memory usage for each process running on Server1. Which tool should you use? （） [" Event Viewer"," Task Manager"," Query Process"," System Configuration Utility"]
自杀伤与他杀伤的鉴别
一般混凝土柱的高度在桩（或墙）顶低于或高出槽孔中水面，应该比水面或桩（墙）顶至少高出（）。 ["2","3","4","5"]
简述突变基因定向选择的基本过程。
灰口铸铁有什么特点？
