题目内容

You work as a database administrator for Supportcenter.cn. Your database is in the MOUNT state and you execute the following command to open it ALTER DATABASE OPEN; What two actions are performed as a result of this command?()

All control files are opened
B. All redo files are opened
C. The password file is opened
D. The parameter file is opened
E. All online data files are opened

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《中华人民共和国劳动法》:用人单位应当保证劳动者每周至少休息()日。

A. 一日
B. 二日
C. 三日
D. 四日

简述工程索赔的特征。

心火(),可以引起口舌生疮。

中梁、侧梁在枕梁间下垂不大于()。

A. 15mm
B. 20mm
C. 25mm
D. 30mm

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