题目内容

电气化区段减小两轨间不平衡电流应采取的措施是改善两根钢轨的纵向（）不平衡。

查看答案

搜索结果不匹配？点我反馈

更多问题

储罐在检修过程中的检验方法、充水试验和验收可参照GBJ128-90（）的有关规定进行。

查看答案

我国水资源总储量居世界第六位，但人均水资源量不足，仅为世界人均占水量的1/4。

A. 正确
B. 错误

查看答案

《中国药典》规定，用吸收系数法测定供试品的含量时，吸收系数通常应大于（），应注意仪器的校正和检定。

A. 10
B. 50
C. 100
D. 200

查看答案

You are administering a database stored in Automatic Storage management (ASM). The files are storedin the DATA disk group. You execute the following command:SQL > ALTER DISKGROUP data ADD ALIAS ‘+data/prod/myfile.dbf’ FOR ‘+data.231.45678’;What is the result?（）

A. The file ‘+data.231.54769’ is physically relocated to ‘+data/prod’ and renamed as ‘myfile.dbf’.
B. The file ‘+data.231.54769’ is renamed as ‘myfile.dbf’, and copied to ‘+data/prod’.
C. The file ‘+data.231.54769’ remains in the same location and a synonym 'myfile.dbf' is created.
D. The file ‘myfile.dbf’ is created in ‘+data/prod’ and the reference to ‘+data.231.54769’ in the data dictionary removed.

查看答案