以下说法错误的是(27)。
- A．多态性防止了程序相互依性而带来的变动影响
- B．多态性与继承性相结合使软件具有更广泛的重用性和可扩充性
- C．封装性是保证软件部件具有优良的模块性的基础
- D．多态性是指相同的操作或函数、过程可作用于多种类型的对象上并获得不同结果
-
(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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