题目内容

设备中的文件属性中有drw,其中d代表什么含义?

A. d表明是个目录。
B. d表明是可读出的意思。
C. d表明是可写入的意思。
D. d表明是可执行程序。

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更多问题

Select a proper sentinel value if we want users to enter students’ grades.

A. 0
B. 10
C. 100
D. -1

How to enter the EOF mark?

A. Press Ctrl+Z (in Windows) or Ctrl+D (Mac/Linux).
B. Enter “EOF” in the terminal.
C. Enter “^Z” or “^D”.

On success, the scanf() function will return _____.

A. The length of the input string.
B. The number of input characters.
C. The number of input items successfully processed.
D. The number of total items presented in the control sequence.

The continue statement can be used within ( ) statements.

A. if
B. do
C. do-while
D. for

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