You lost the index tablespace in your database. You decided to re-create the index tablespace and the indexes in the tablespace. What methods can you use to re-create the indexes？（） [" SQL scripts"," Recovery Manager （RMAN） script"," Data Pump"," SQL*Loader"," Flashback database"]
在轴瓦上浇注巴氏合金之前，一般要先（），这样可使轴瓦与巴氏合金粘合（）。
Given： What is the result？（） ["Compilation fails.","An exception is thrown at runtime.","The code executes normally and prints "sleep".","The code executes normally， but nothing is printed."]
Which three statements are true about the working of system privileges in a multitenant control database(CDB) that has pluggable databases (PDBs)?（） [" System privileges apply only to the PDB in which they are used."," Local users cannot use local system privileges on the schema of a common user."," The granter of system privileges must possess the set container privilege."," Common users connected to a PDB can exercise privileges across other PDBs."," System privileges with the with grant option container all clause must be granted to a common user before the common user can grant privileges to other users."]
推进水利工程建设项目信息公开和诚信体系建设的目的要求不包括（） ["解决市场准入和退出机制不健全的问题","解决水利工程建设信息公开不规范的问题","完善水利工程建设制度","解决水"]
在城市公交客流高峰时段，为了加快车辆周转，车辆在始末站停站时间，不应大于当时行车间隔的（）倍（范围值）。
