题目文件夹
problem folder
题目
exercise problems; rubric; subject; theme; title; topic
subject
题目的
thematic
题目定义
problem definition
题目关键字
keyword in title
题目描述
problem description
题目数据
problem data
题目外关键字
keyword out of title
题目选择
title option
随机存取磁盘文件
random-access disk file
随机存取文件
random access file
随机分段文件
arbitrarily-sectioned file
随机工作文件
random work file
随机文件
random file
attachment paper
随机文件编址
randomizing file addressing
随机文件寻址
randomizing file addressing
缩微文件
microfile
索引存取文件
file of index access
索引顺序文件
index sequential file; indexed sequential file
索引顺序文件管理
indexed sequential file management