正确答案: C

5～10Mb/s

题目：宽带传输通常使用的速率为______。

解析：C

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举一反三的答案和解析：

[单选题]在 Windows XP 资源管理器中的文件夹区域中，文件夹图标前标有“+”的，表示该文件夹中 （） 。

有子文件夹

[单选题]●某程序员针对用户在使用其软件后反映的以下各种操作问题，分别提出了改进方法，其中(56)不能很好地解决问题。(56)

某系统在用户正确登录后立即显示了主窗口，但系统需要花费十几秒加载数据，此时主窗口中的各种操作都不起作用。改进方法：这期间将各种选项设置为禁用的灰色

[单选题]Traditional Internet access methods like dial-up were so slow that host computers were connected to the dial-up(71)at the customer premise over slow(72)ports. PPP was designed to run directly over these serial links. But with the advent of broadband Internet(73)technologies such as ADSL and cable modems there has been a considerable increase in the bandwidth delivered to the end users. This means that the Lost computers at the customer premise connect to the(74)or cable "modem" over a much faster medium such as Ethernet. It also means that multiple(75)can connect to the Internet through the same connection.

modem

[单选题]设机器数字长8位(含2位符号位)，若机器数DAH为补码，则算术左移一位得_________，算术右移一位得_________。

B4H EDH

[多选题]虚存页面调度算法有多种，______调度算法不是页面调度算法。

后进先出(LIPO)