若系统在将（ ）文件修改的结果写回磁盘时发生崩溃，则对系统的影响相对较大。
- A.目录
- B.空闲块
- C.用户程序
- D.用户数据
正确答案及解析
正确答案
解析
系统目录就是指操作系统的主要文件存放的目录，目录中的文件直接影响到系统是否正常工作。
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