精选优质文档-倾情为你奉上 2.1) The standard Unix program that provides on-line documentation is called中文：提供在线文档的标准的Unix程序被称为B A. help B. man 2.2) The Unix who command shows for each logged-in user the中文：Unix的命令显示每个登录用户的AA. terminal name 终端名称 B. office address 2.3) The -k option of the Unix man command is used to中文：Unix的man命令的- k选项是用来B A. kill frozen connections B. search by keyword 按关键字搜索 2.4) The data type Unix uses to record login records is called a中
