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发布时间：2006-06-21 20:58     点击：

Example II

The computer plays a vital role in development,

A B

communication, and disseminating of ideas in today's world.

C D

The sentence should read, "The computer plays a vital role in development, communication, and dissemination of ideas in today's world." Therefore, youshould choose (C).

Now begin work on the questions.

16. For years small communities of researchers have living underground

A

in parts of the arctic where the climate is harsh and the winds are

B

strong.

D

17. Thomas Edison made the first microphone for self by combining a thin

A B C

reed and a metal conductor together.

D

18. Not only do hydroelectric power systems provide people with irrigation and drinking water, but they also provide importantly sources of electrical power.

19. The Federal Communications Commission supervises the suitable and quality of radio.

20. All cars, alike most trains and a few propeller planes, depend on combustion inside a piston cylinder.

21. The expansion of adult education centers had resulted partially from the service-based economy, which encouraging employees to update their skills for the changing job market.

22. The most significant evolutionary characteristic of the primates are the development of the opposable thumb.

23. Ludwig Beethoven was often indifferent to the titles of his composed and was generally oblivious to the names given them years after their completion.

24. Benny Goodman's orchestra, playing his original compositions and arrangements, achieving a fine distinction among his peers and contributed numerous innovations to modern big band jazz.

25. Mosquitoes are almost completey deaf, although its tiny ears can distinguish noise from silence.

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