以下哪些卷可以提供容错功能()
A.带区卷
B.跨区卷
C.镜像卷
D.RAID5卷
参考答案:C, D
单词拼写
1. His parents died in the earthquake, but luckily he s ____ .
2. She did not f ____ the idea of going out in the dark because she was afraid of darkness.
3. We use flowers and balloons to d ____ our classroom on New Year's Day.
4. Students r ____ several desks to another classroom.
5. I d ___ whether Tom has taken my watch.
咳吐脓血腥臭痰多见于()
A.肺痈
B.肺痿
C.肺燥
D.肺热
E.肺痨