题目内容
（请给出正确答案）
提问人：网友d*******1
发布时间：2023年2月18日 09:48
[单选题]
According to your backup strategy， you performed an incremental level 0 backup of yourdatabase. Which statement regarding this backup is true？（）
A.The backup is similar to image copy. B.The backup contains all used data blocks. C.The backup contains only unused data blocks. D.The backup contains all data blocks changed since the last incremental level 1 backup.
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