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Examine the following command that is used to duplicate a database on the same host：   RMAN> RUN {  ALLOCATE AUXILIARY CHANNEL， aux 1 DEVICE TYPE DISK； DUPLICATE TARGET DATABASE TO auxdb SKIP READONLY； / } Which two statements describe the effect after the database is duplicated successfully？（）
A: The data files of the read-only tablespaces in the target database are not duplicated
B: The read-only tablespaces in the target database are still defined in new the database
C: The read-only tablespaces in the target database are changed to online after duplication
D: The data files of the read-only tablespaces in the target database get duplicated
E: The read-only tablespaces in the target database are not defined in the new database

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出自：Oracle认证

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