[单项选择]{{B}}Passage Four{{/B}}

What is one function of sensory nerve cells
A. To move the muscles.
B. To detect light.
C. To protect the nerves.
D. To soothe the brain.

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[单项选择]Passage Four

What does Symantec Corporation sell a. Computers. b. Anti-virus software. c. Computer books. d. Attacking softwares.

[单项选择]Passage Four

What is this passage about a. The development of computer technonogy. b. The development of Symantec Corporation. c. Cyber attacks. d. Computer techniques.

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[单项选择]Passage Four

What began with the invention of the telephone in 1876 has today become a global net of cables, satellites, transmitters, and receivers that enables half the population of the planet to exchange works, data, and images in seconds. It could take less than 25 years more to give the other half of the world’s people this same power.
The unified global telecommunications system, which is called "the Meganet’, represents the greatest construction project ever undertaken. If present trends continue, by early in the 21^st century the Meganet will link every computer terminal, fax machine, databank, and telephone instrument on earth.
Unlike its anarchic (无政府主义的) cousin the Internet, which evolved from free interaction among interest groups of computer users, the Meganet of local telephone service, long-distance lines, co
A. sponsored by governments
B. similar to its cousin the Internet
C. the continuity of the Internet
D. evolved from spontaneous interaction among interest groups of computer users

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[单项选择]What happened to one of the four birds

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[单项选择]Passage Four

What makes Reader’s Digest the most successful magazine in publishing history Beneath the fun and excitement that fill our pages, we are, above all else, a serious magazine. Our readers are serious people. The Digest never loses sight of the fact that each day all of us confront a tough, challenging world. To millions who know our record of viewing this world, we are not a luxury; we are a necessity.
Basic to our magazine is a steady focus on the power of the individual. We show that man’s greatest ideas and accomplishment, his often stunning (极好的) faith and courage and hope, can be seen in the conduct of ordinary men and women. We reflect the universal skepticism that government can solve our problems; we herald the unending promise of self-determination and individual enterprise. Readers depend upon us for truth and accuracy,
A. it provides fun and excitement to its readers
B. it views the world as the ordinary people do
C. it presents people with solutions to life’s problems
D. it has such a long history that every generation is reading it

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[单项选择]Passage Four

About one million years ago, the Ice Age began. The Ice Age was a long period of time in which four great glaciers pushed southward to cover almost all the upper half of North America, and then melted away. Each glacier was a thick sheet of ice and snow that spread out from a centre near what is now Hudson Bay in Canada. The winters were long, and the cool summers were too short to melt much of the ice and snow. The ever-growing sheet built up to a thickness of two miles at its centre.
As all glaciers do, these great glaciers slid. They pushed down giant trees in their paths and scraped the earth bare of soil. Many animals moved farther south to escape. Others stayed and were destroyed.
When winters of little snow came, the summer sun cut into the edges of the ice sheets. As the glaciers melted, rocks, soil and other things
A. glaciers are destructive
B. all glaciers in the world move southward
C. the Mississippi-Missouri-Ohio system is larger than it was before the Ice Age
D. the Great Lakes are now smaller than they were before the Ice Age

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[单项选择]{{B}}Passage Four{{/B}} What is one function of sensory nerve cells A. To move the muscles.B. To detect light.C. To protect the nerves.D. To soothe the brain.

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[单项选择]{{B}}Passage Four{{/B}}

What is one function of sensory nerve cells
A. To move the muscles.
B. To detect light.
C. To protect the nerves.
D. To soothe the brain.