关cat命令,下面哪些描述是正确的(多选)。
A. cat命令可以用来合并多个文本文件
B. 从键盘创建文本文件
C. 适用于查看任意大小的文本文件
D. 可以用上下箭头键来滚动查看文件内容
E. 提供关键字查找功能
Mike went straight from school to a job in ____________.
A. a clothes' shop
B. an IT firm
C. a trading company
Mike's job was to make sure the ________hd enough paper in it.
A. photocopier
B. printer
C. flip chart
Mike liked dealing with customers and learning how to _________.
A. advise them
B. repair computers
C. write software