Which one of these statements about connecting to the Internet is true?(68).
- A．The Internet can only be used to link computers with same operating system
- B．The Internet can be used to connect computers with different ISP
- C．You must have a telephone line to connect to the Internet
- D．You must have a modem to connect to the Internet
-
(129)
- A．first
- B．last
- C．next
- D．second
-
(127)
- A．when
- B．where
- C．who
- D．which
-
(128)
- A．get
- B．make
- C．push
- D．pull
-
(126)
- A．add
- B．added
- C．adding
- D．additional
-
An instruction is made up of operations that(68)the function to be performed and operands that represent the data to be operated on. For example, if an instruction is to perform. the operation of(69)two numbers, it must know(70)the two numbers are. The processor's job is to(71)instructions and operands from memory and to perform. each operation. Having done that, it signals memory to send it(72)instruction.
- A．smile
- B．skip
- C．smoke
- D．specify
-
(124)
- A．prevent
- B．protect
- C．examine
- D．exploit
-
A firewall is a(71)system designed to(72)an organization's network against threats.
- A．operating
- B．programming
- C．security
- D．data
-
(122)
- A．复制选中的文本
- B．移动选中的文本
- C．选中一个矩形区域中的文本
- D．选中一个段落
-
在常用的字处理软件中，选中文本块后，按下Ctrl键再拖曳鼠标，可以()
- A．复制选中的文本
- B．移动选中的文本
- C．选中一个矩形区域中的文本
- D．选中一个段落
-
There are many page replacement algorithms in the page management. Most frequently used algorithm is(69).
- A．FIFO
- B．LRU
- C．OPT
- D．PPT
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