[形考线下] A ( ) channel allows simultaneous message exchange in both 日期：2022-09-04 15:45:26 点击：77 好评：0
13. A ( ) channel allows simultaneous message exchange in both directions.It really consists of two simplex channels, a forward channel and a reverse channel,linking the same points. A. half-duplex B. full-duplex C. simplex D. none of...
[形考线下] ( ), software used in corporate networks (intranets and ext 日期：2022-09-04 15:44:17 点击：102 好评：0
8. ( ), software used in corporate networks (intranets and extranets) to prevent unauthorized people from accessing the network. A. Firewall B. Modem C. Hypertext D. TCP ...
[形考线下] Two types of software are ( ) and application software. 日期：2022-09-04 15:43:08 点击：161 好评：0
3. Two types of software are ( ) and application software. A. system software B. system call C. system crash D. system hardware ...
[形考线下] The first generation of computer is ( ). 日期：2022-09-04 15:41:18 点击：139 好评：0
18. The first generation of computer is ( ). A. vacuum tubes B. transistors C. integrated circuits D. microprocessors ...
[形考线下] ( ) are the peripherals that allow users to enter data, pro 日期：2022-09-04 15:40:18 点击：98 好评：0
13. ( ) are the peripherals that allow users to enter data, programs, commands, and user responses into a computer and transform them into a suitable form for processing. A. RAM B. ROM C. Input devices D. Memory ...
[形考线下] ( ) stands for Central Processing Unit. It performs the sys 日期：2022-09-04 15:39:08 点击：147 好评：0
8. ( ) stands for Central Processing Unit. It performs the system's calculating and processing. A. computer B. CPU C. input device D. output device ...
[形考线下] A ( ) is the primary input device. It is used for entering 日期：2022-09-04 15:37:59 点击：94 好评：0
3. A ( ) is the primary input device. It is used for entering letters, numbers and commands into the system. A. RAM B. keyboard C. output devices D. memory ...
[形考线下] JavaScript脚本语言，关键字对于大小写是敏感的。 日期：2022-09-04 15:37:09 点击：59 好评：0
8. JavaScript脚本语言，关键字对于大小写是敏感的。 A. 错误 B. 正确 ...
[形考线下] HTML标签代码<img src=＂name＂>表示（）。 日期：2022-09-04 15:35:47 点击：69 好评：0
8. HTML标签代码<img src="name">表示（）。 A. 添加一个图像 B. 排列对齐一个图像 C. 设置围绕一个图像的边框的大小 D. 加入一条水平线 ...
[形考线下] var s=＂123456＂;那么s.substring(2,4);的值为（）。 日期：2022-09-04 15:34:30 点击：114 好评：0
3. var s="123456";那么s.substring(2,4);的值为（）。 A. "23" B. "34" C. "12" D. "45" ...
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