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Which three statements are true about the working of system privileges in a multitenant control database(CDB) that has pluggable databases (PDBs)?（）
A:System privileges apply only to the PDB in which they are used.
B:Local users cannot use local system privileges on the schema of a common user.
C:The granter of system privileges must possess the set container privilege.
D:Common users connected to a PDB can exercise privileges across other PDBs.
E: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.

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出自：Oracle认证

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