同碳原子数正构烷烃的沸点比异构烷烃的（）。 ["低","高","一样"]
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（）。
进城务工的农村居民不能参加失业保险。
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."]
运动疗法根据能源消耗分为（）运动、（）运动和（）运动。
