(29)
- A．在显示出了下拉式菜单后，可以在键盘上按字符来选择命令
- B．在任何时候可以直接在键盘上按字符来选择命令
- C．在显示出了下拉式菜单后，可以按Alt+字符来选择命令
- D．在任何时候可按Alt+字符来选择命令
-
(74)
- A．works
- B．jobs
- C．tasks
- D．assignments
-
The main feature of(72)is that they follow a first-come/first-served rule. For instance, the line of(73)waiting to be run on a computer system.
- A．looplinks
- B．queues
- C．stacks
- D．trees
-
Whenever new information is entered, it must be stored somewhere in the computer's(70). RAM only(71)the data temporarily. That is, all information stored in the RAM will disappear if you switch the computer off.
- A．processor
- B．keyboard
- C．printer
- D．memory
-
(72)
- A．takes
- B．executes
- C．erases
- D．holds
-
(70)
- A．input
- B．output
- C．peripheral
- D．electronic
-
A(68)is used to show you what the computer is doing. It is called(69)equipment as well as the keyboard, the mouse and the printer.
- A．moniter
- B．modem
- C．printer
- D．shower
-
(68)
- A．jobs
- B．transactions
- C．programs
- D．files
-
One solution to major security problems is(75), which are frequently installed to fix known security holes.
- A．patches
- B．compensations
- C．complements
- D．additions
-
(66)is defined as the buying and selling of products and services over the Internet. It had included the handling of purchase(67)and funds transfers over computer networks from its inception.
- A．Electronicmail
- B．Searchengine
- C．Multimedia
- D．Electroniccommerce
-
(74)is a clickable string or graphic that points to another Web page or document.
- A．Link
- B．Anchor
- C．Browser
- D．Hyperlink
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