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- 单项选择题In AIX 5L and later， the operating system supports the /proc filesystem. What would be the best description of the /proc filesystem？（）
A、 It is a pseudo filesystem that maps processes and kernel data structures to corresponding files.
B、 It is a JFS mounted filesystem that provides an exact representation of what is happening to a proces at a single and discrete point of time.
C、 It is a JFS mounted filesystem that maps processes and read-only files related to these processes.
D、 It is a pseudo filesystem that contains data that represents the state of the parent processes （but not their threads） in a system.
- A
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