1. 从供选择的答案中选出应填入英语文句中()的正确的答案。 Software products may be(A) into four basic types: application programs, programming language processors, operating systems, and system utilities.
Application programs are programs that
(B) useful tasks such as solving statistical problems, or keeping **pany's books.
Programming language processors are programs that
(C) the use if a computer language in a computer system. They are tools for the development of application programs.
Operating systems are programs that
(D) the system resources and enable you to run application programs.
System utilities are special programs that
(E) the usefulness of or add capabilities to a computer.
A～E: ① manage ② perform ③ support ④ reduce
⑤ divided ⑥ enhance ⑦ implemented ⑧ introduce
⑨ ranked ⑩ run
2. 从供选择的答案中选出应填入英语文句中()的正确的答案。
Here is a useful procedure for choosing a program:
宝石岛 ① Study the features of all the programs you might choose(A) . Decide which features you need, which you would
(B), and which you can do your jobs without.
② Eliminate the programs that clearly do not
(C) you needs.
③ Consider how the remaining programs perform the functions you will use most often. This can affect a program's usability more than all the "nice" features that you will
(D) need.
④ Study the remaining programs carefully with
(E) experience if you can get it and decide which one is best for you.
A: ① for ② on ③ in ④ from
B、C: ① meet ② require ③ help ④ give ⑤ choose ⑥ like
D、E: ① often ② seldom ③ always ④ rich ⑤ hands-on ⑥ little农村经济与科技
3. 从供选择的答案中选出应填入英语文句中()的正确的答案。
The C programming language has(A) one of the most
(B) programming languages, and it has been implemented on most **puters and multiuser systems, especially those designed for research and development. It evolved from the version described in Kernighan and Ritche's work (called "K&R C" after the authors into
(C) variants, including the standard ANSI C, which
(D) many type-checking features and includes a standard library. Of the two main
(E), K&R C is probably the **monly used on **puters, with ANSI C close behind in the **puting world, ANSI C is far **mon.
A～E:
① much ② variants ③ complex ④ incorporates ⑤ several
⑥ become ⑦ popular ⑧ editions ⑨ come ⑩ users
4. 从供选择的答案中选出应填入英语文句中()的正确的答案。
男生恋爱后患接吻病>荀子 宥坐
The use of **puter is changing the very(A) of many jobs that exist within a business. In the industrial (B), tools were developed to assist in improving production, but much work still involved
(C) labor. The information(B) has brought about another change--a change from(C) labor to
(D) labor. Pressure on computer worker can be great. Whether operating a robot, running a computer, or programming a computer, a single error can be
(E). The smallest error could misdirect an airline, disrupt delivery schedules, or cost millions of dollars.
A～E:
① important ② great ③ disastrous ④ physical ⑤ body
⑥ brain ⑦ mental ⑧ revolving ⑨ revolution ⑩ nature
5. 从供选择的答案中选出应填入英语文句中()的正确的答案。
PCs originated as stand-alone(A), however, in recent years many have been
(B) to Local Area Networks (LANs). In a LAN, the data and usually the user application reside on the File Server, a PC running a special Network Operating System (NOS) such as Novell's NetWare or Microsoft's LAN Manager. The File Server manages the LAN users' shared access to data on its hard
(C) and frequently provides access to other shared resources, such as printers. While a LAN enables users of PC-based databases to share
(D) data files, it doesn't significantly change how the DBMS works; all the actual data
(E) is still performed on the PC running the database application.
A～E: ① calculating ② common ③ connected ④ disks
⑤ displayed ⑥ systems ⑦ primers ⑧ processing
⑨ some ⑩ workstations
阿片类化合物6. 从供选择的答案中选出应填入英语文句中()的正确的答案。
Toolboxes and menus in many application programs were(A) for working with the mouse. The mouse controls a pointer on the screen. You move the pointer by
(B) the mouse over a flat surface in the direction you want the pointer to move. If you run out of
(C) to move the mouse, lift it up and put it down again. The pointer moves only when the mouse is电信空间
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