制定防火措施的依据主要有:();保证财产安全;确保生产顺利进行;预防火灾苗头
In which case would you use the Flashback Database feature to perform a recovery?()
A. to recover a dropped tablespace
B. to recover data from a truncated table
C. to recover a data file that has been shrunk
D. to recover a database to the state that existed before the RESETLOGS operatio
有一定的质量、形状和体积,可按一定体积和一定质量计量装运的货物称为()货物。
A. 计件
B. 堆码
C. 灌注
直读光谱仪光学校准,看激发后数据的相对标准偏差(RSD)是否小于,如果大于()需要对设备进一步调整。
A. 0.5%
B. 10%
C. 3%
D. 8%