题目内容

[音频]Long Conversation

A. He is the only boy in his family
B. He becomes tearful in wind
C. He has stoppedmaking terrible faces
D. He is his teacher's favorite student

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[音频]Passage

A. Everything seemed to be changing.
B. People were formal and disciplined.
C. People were excited to go travelling overseas.
D. Things from the Victorian era came back alive.

文件系统的主要目的是( )。

A. 实现对文件的按名存取
B. 实现虚拟存储
C. 提高文件的读写速度
D. 保护用户文件不丢失

( )是文件系统中最大的数据单位,它描述了一个对象集。

A. 数据项
B. 关键字
C. 记录
D. 文件

在大多数操作系统中引入了open文件系统调用,该系统调用就是在用户和指定文件之间建立起一个连接。

A. 对
B. 错

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