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【单选题】
You are a network administrator for your company. The network consists of a single Active Directory domain and contains 10 Windows Server 2003 computers. You install a new service on a server named Server1. The new service requires that you restart Server1. When you attempt to restart Server1， the logon screen does not appear. You turn off and then turn on the power for Server1. The logon screen does not appear. You attempt to recover the failed server by using the Last Known Good Configuration startup option. It is unsuccessful. You attempt to recover Server1 by using the Safe Mode startup options. All Safe Mode options are unsuccessful. You restore Server1. Server1 restarts successfully. You discover that Server1 failed because the new service is not compatible with a security patch. You want to configure all servers so that you can recover from this type of failure by using the minimum amount of time and by minimizing data loss. You need to ensure that in the future， other services that fail do not result in the same type of failure. What should you do？ （）A.
Use Add or Remove Programs.
B.
Install and use the Recovery Console.
C.
Use Automated System Recovery （ASR）.
D.
Use Device Driver Roll Back.
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【多选题】根据《重庆市建筑工程计价定额（2008）》，人工开挖基槽应符合（）。
A.
槽底宽度≤5m
B.
槽底宽度≤7m
C.
槽底长≥3倍槽底宽
D.
槽底长＞3倍槽底宽
E.
底面积≤50m 2
【多选题】根据《重庆市建筑工程计价定额（2008）》，人工开挖基坑应符合（）。
A.
底宽度≤5m
B.
槽底宽度≤7m
C.
长边≤3倍短边
D.
长边＞3倍短边
E.
底面积≤50m 2
【单选题】下列关于沟槽开挖施工，不符合规范要求的是（）
A.
沟槽开挖时，槽底原状地基土不得扰动，机械开挖时，槽底预留200～300mm土层由人工开挖至设计高程，整平。
B.
槽底不得受水浸泡或受冻，槽底局部扰动或受水浸泡时，宜采用天然级配砂砾石或石灰土回填。
C.
槽底土层为杂填土、腐蚀性土时，应全部挖除并按设计的要求进行处理。
D.
地质条件良好、土质均匀、地下水位低于沟槽底面高程时，沟槽不必设支撑。
相关题目：
【多选题】根据《重庆市建筑工程计价定额（2008）》，人工开挖基槽应符合（）。
A.
槽底宽度≤5m
B.
槽底宽度≤7m
C.
槽底长≥3倍槽底宽
D.
槽底长＞3倍槽底宽
E.
底面积≤50m 2