A．软盘 B．硬盘C．U盘D．软盘或硬盘在Windows操作系统中， 回收站 可以恢复（）上使用键删除文件或文……

单项选择题若采用短作业优先调度算法，则作业调度次序为（）

A．J3→J4→J2→J1
B．J1→J2→J3→J4
C．J1→J3→J4→J2
D．J4→J3→J2→J1

单项选择题某数值编码为FFH，若它所表示的真值为-127，则它是用（）表示的。

A．原码
B．反码
C．补码
D．移码

单项选择题On a（）memory system，the logical memory space available to the program is totally independent of the physical memory space.

A．cache
B．virtual
C．RAM
D．ROM

单项选择题A programmer must know about a function’s（）to call it correctly.

A．location
B．algorithm
C．interface
D．statements

单项选择题One solution to major security problem is（），which are frequently installed to fix known security holes.

A．patches
B．compensations
C．complements
D．additions

单项选择题（）is a clickable string or graphic that points to another Web page or document.

A．Link
B．Anchor
C．Browser
D．Hyperlink

单项选择题In（）programming， the user determines the sequence of instructions to be executed ，not the programmer.

A．top-down
B．structure
C．data-driven
D．event-driven

单项选择题The standard（）in C language contain many useful functions for input and output ， string handing，mathematical computations，and system programming tasks.

A．database
B．files
C．libraries
D．subroutine

单项选择题In C language，functions are important because they provide a way to（）code so that a large complex program can be written by combining many smaller parts.

A．modify
B．modularize
C．block
D．board

单项选择题Very long，complex expressions in program are difficult to write correctly and difficult to（）

A．defend
B．detect
C．default
D．debug