题目内容

You are analyzing the components of the redo log mechanisms in your Oracle database. Which of the following purposes does the CKPT process serve?()

A. Writes buffers to disk
B. Writes current redo log number to datafile headers
C. Writes redo log information to disk
D. Reads information into memory for user

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1纳诺米(10-9米)是1米的10亿分之一,纳诺技术也称纳米技术就是10-9米与10-9秒的范围和时空中存在的技术。这是超小规模的科学技术领域,它将在未来改变现代科学技术领域的基本面貌,你知道纳诺两字的英文单词吗()

A. NNO
B. NANO
C. NONA
D. NAAN

以位于汉水入江之口而得名的是哪里?

汉朝的皇帝中谁开国?谁纂国?谁亡国?

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