题目内容

锦屏二级水电站的饮水隧洞的最大埋深为（）m。

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A customer is experiencing a performance bottleneck. The server is performing sequential I/O requests with large block sizes of 64KB. Improving which of the following storage subsystem characteristics has the biggest impact on this bottleneck？（）

A. Seek Time
B. Drive RPM
C. Data Transfer Rate
D. Rotational Latency

When taking soundings on a floating ship，the tape should be lowered and brought back quickly to（）.

A. reduce the time the sounding tube is open
B. avoid creating a spark
C. lessen the effect of roll or pitch on the reading
D. lessen the effect of heave on the reading

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作业人员的重心超出作业平台防护栏范围作业时，须将安全带系在牢固可靠的部位。

A. 正确
B. 错误

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某公司在省城中标一地铁区间隧道标段，隧道长l080m，内径5m．埋深14-17m。隧道穿过闹市区，位于城市主干道下，采用土压平衡盾构法施工。在编制施工组织设计时，根据有关参数对工作面土压进行了理论计算和设定。当盾构掘进遇到以下（）种情况时，应停止掘进及时处理．

A. 盾构前方地层发生坍塌或遇有障碍
B. 盾构本体滚动角不大于3
C. 盾构轴线偏离隧道轴线不大于50mm
D. 管片严重开裂或严重错台
E. 壁后注浆系统发生故障无法注浆

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