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大修时对有载调压开关应做哪些试验？大修后、带电前应做哪些检查调试？

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Ⅰ类航道校直度应保持平均航道线在基准数据点处水平偏移不大于（）米。

A. 10.5
B. 7.5
C. 3
D. 1

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怎样评价身体素质练习效果。

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单位时间内流过管道任一截面的流体量，称为流量D

A. 正确
B. 错误

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In which two cases would you perform only consistent backup？（）

A. You are working on a database where downtime is not tolerated.
B. You are working on a database where downtime can be tolerated.
C. You are working on a database that operates in ARCHIVELOG mode.
D. You are working on a database that operates in NOARCHIVELOG mode.
E. You are working on a database where all the tablespaces are locally managed.
F. You are working on a database where control files and redo log files are multiplexed.
G. You are working on a database where control files and redo log files are not multiplexed.

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