地质条件良好、土质均匀、地下水位低于沟槽底面高程，且开挖深度在（）以内、沟槽不设支撑时，沟槽边坡最陡坡度应符合规范的规定。 ["A.3m ","B.4m ","C.5m ","D.6m"]
坚定理想信念，坚守共产党人精神追求，始终是共产党人安身立命的根本。
以下属于EPC总承包模式对承包商最主要要求的是（） ["要求承包商在确保项目产品功能和质量的前提下，能够积极进行工程总造价的控制","要求承包商在设计时考虑采购、施工的要求，提高设计质量，减少返工和浪费","要求承包商从设计、采购、施工全过程和整体上考虑和处理工程问题","其他"]
You are the network administrator for The network consists of a single Active Directory domain named All network servers run Windows Server 2003. All user files are stored in home folders on a member server named Testking3. Full backups are performed on Testking3 every day. A user named Mark leaves the company. A technical support specialist deletes Mark's user account and his files. You need to restore certain files from Mark's folder and enable another user named Anne to access them. What should you do?（） [" Clear the Restore security check box. Use the Backup utility to restore Mark's files to the original location."," Select the Restore security check box. Use the Backup utility to restore Mark's files to the original location."," Clear the Restore security check box. Use the Backup utility to restore Mark's files to Anne's home folder."," Select the Restore security check box. Use the Backup utility to restore Mark's files to Anne's home folder."]
对于带补充载荷的安全阀，下面（）的说法是正确的。 ["在进口处压力达到整定压力前有一增强密封的附加力","附加力由系统介质提供","附加力在安全阀达到整定压力时应可靠地释放。","附加力未释放时，安全阀仍能在进口压力不超过国家法规规定整定压力百分数的前提下达到额定排量。"]
简述澄清的步骤。
