1. 上图所示为1984年、1985年、1986年、1987年、1988年和1989年商店的增减情况。
2. 说明发生这些变化的原因及发展趋势。
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听力原文:I am Paul Newman from Coles. Some time ago we signed an agreement with you to build a link between our two companies. We have arranged for one of your representatives to visit me last week, but he failed to turn up by 4: 30. Naturally, I called your office to find out the reason, but the secretary I spoke to was very rode to me. Now, a week has passed, I have got no reply from your company.
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管理员想查看服务器当前IP地址的租约情况,可以查看DHCP服务器中的______文件(绝对路径)。