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。
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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
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.
关于机电产品国际招标项目的评标,下列情形中不属于应予废标的是()。
A. 投标文件未按照要求逐页签字的
B. 投标人与招标机构有利害关系的
C. 未按招标文件要求注明主选方案和备选方案的
D. 投标文件技术规格中的一般参数出现偏离的