听力原文:M: If you had waited until after the Christmas holidays, you could have bought that dress for much less. W: I know that, but I needed it immediately. I had a wedding reception to attend. When had the woman purchased the dress?
【简答题】实验一:常用linux命令 实验目的: 1. 让学生熟悉常用 linux 环境下的操作命令,为以后其它内容的学习打下坚实的基础。 2. 熟悉虚拟机环境。 实验步骤: 1.cd cd /home/firewall # 把 /home/ firewall 设置为当前目录 cd .. # 返回上一级目录 cd ~ # 进入到当前 Linux 系统登录用户的主目录(或主文件夹)。在 Linux 系统中, ...