题目内容

以下仪器中可以测量出被试设备绝缘受潮、劣化的是（）。

A. 直流电阻仪
B. 兆欧表
C. 回路电阻仪
D. 变比测试仪

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Which two statements are true about encrypting RMAN backup?（） (Choose two.)

A. The transparent encryption of backups uses the encryption wallet
B. The database uses the same encryption key for every encrypted backup
C. The password encryption of backups only uses the password while creating and restoring backup
D. If transparent encryption is configured, you cannot use the SET ENCRYPTION BY PASSWORD command to make password-protected backups.

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