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
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 your company'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 pided ⑥ enhance ⑦ implemented ⑧ introduce
⑨ ranked ⑩ run
正确答案：A: ⑤ B: ② C:③ D: ① E: ⑥A: ⑤ B: ② C:③ D: ① E: ⑥
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