测量时,先测出与被测量有关的电量,然后通过计算求的被测量数值的方法叫()测量法。
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国际及台港澳漫游状态下移动数据流量的标准资费为:香港方向资费是多少?其他方向资费是多少?
焊接生产技术管理包括焊接材料管理,焊接工装管理,焊工考试管理,焊工档案管理,()和()。
You need to ensure that the Cust_CalcData column is implemented appropriately. What should you do?()
A. Specify that the Cust_CalcData column must be implemented as a computed column of the table.
B. Specify that the Cust_CalcData column must be indexed using a non-clustered index.
C. Specify that the Cust_CalcData column must be implemented as a column that uses a user-defined data type.
D. Specify that the Cust_CalcData column must be updated by a SQL Server Agent job that runs nightly.
“宁为百夫长,胜作一书生。”出自杨炯的《从军行》。请问诗中的“百夫长”泛指什么身份的人?