题目内容

RAID级别是指磁盘阵列中硬盘的组合方式，不同级别的RAID为用户提供的磁盘阵列在性能上和安全性的表现上也有不同。图7-2是(45)磁盘阵列的工作原理示意图。

A. RAID 1
B. RAID 3
C. RAID 5
D. RAID 7

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We can infer from the passage that

A. extracurricular activities promote children's intelligence.
B. most children will turn to reading with TV sets switched off.
C. efforts to get kids interested in reading have been fruitful.
D. most parents believe reading to be beneficial to children.

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