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In an interview last month, Frank Church, chairman of the Senate committee which is investigating the CIA, issued an oblique but impassioned warning, that the technology of eavesdropping had become so highly developed that Americans might soon be left with 'no place to hide'. That day may have arriveD.Newsweek has learned that the country's most secret intelligence operation, the National Security Agency, already possesses the computerized equipment to monitor nearly all overseas telephone calls and most domestic and international printed messages.
The agency's devices monitor a great deal of telephone circuits, cable lines and the microwave transmissions that carry an increasing share of both spoken and written communications. Computers are programed to watch for 'trigger' words or phrases indicating that a message might interest intelligence analysis, when the trigger is pulled, entire messages are tape-recorded or printed out.
That kind of eavesdropping is, however, relatively simple compared with the breakthroughs that lie ahead in the field of snoopery. Already it is technically feasible to 'bug' an electric typewriter by picking up its feeble electronic emissions from a remote location and then change them into words. And some scientists believe that it may be possible in the future for remote electronic equipment to interceptand 'read' human brain waves.
Where such capabilities exist, so too does the potential for abusE.It is the old story of technology rushing forward with some new wonder, before the man who supposedly control the machines have found how to prevent the machines from controlling them.
Which is the best title for the passage?
A.Fight Against Eavesdropping.
B.A New Breakthrouth.
C.No Place to HidE.
D.An Impassioned Warning.

A.B.
C.
D.
Which
E.Fight
F.
B.A
G.
C.No
H.
D.An

【参考答案】

C
解析:无处可藏。从文章开头引出参议院主席的讲话,到最后都是关于窃听,也表明目前形势的严峻性。选项C最适合做全......

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Coincident with concerns about the accelerating loss of species and habitats has been a growing appreciation of the importance of biological diversity, the number of species in a particular ecosystem, to the health of the Earth and human being. Much has been written about the diversity of terrestrial (陆生的) organisms, particularly the exceptionally rich life associated with tropical rain forest habitats.Relatively little has been said, however, about diversity of life in the sea even though coral reef systems are comparable to rain forests in terms of richness of lifE.An alien exploring Earth would probably give priority to the planet's dominant, most distinctive feature—the ocean. Humans have a bias toward land that sometimes gets in the way of truly examining global issues. Seen from far away, it is easy to realize that landmasses occupy one third of the Earth's surfacE.Given that two thirds of the Earth's surface is water and that marine life lives at all levels of the ocean, the total three dimensional living space of the ocean is perhaps 100 times greater than that of land and contains more than 90 percent of all life on Earth even though the ocean has fewer distinct species.The fact that half of the known species are thought to inhabit the world's rain forests does not seem surprising, considering the huge numbers of insects that comprise the bulk of the species. One scientist found many different species of ants in just one tree from a rain forest. While every species is different from every other species, their genetic makeup constrains them to be insects and to share similar characteristics with 750,000 species of insects. If basic, broad categories such as phyla and classes (门和纲) are given more emphasis than differentiating between species, then the greatest diversity of life is unquestionably in the seA.Nearly every major type of plant and animal has some representation therE.To appreciate fully the diversity and abundance of life in the sea, it helps to think small. Every spoonful of ocean water contains life on the order of 100 to 100, 000 bacterial cells plus assorted microscopic plants and animals, including larvae (幼虫) of organisms ranging from sponges and corals to starfish and clams and much morE.The main topic of the passage is that ______.A.humans are destroying thousands of speciesB.there are thousands of insect speciesC.the sea is even richer in life than the rain forestsD.coral reefs are similar to rain forests
A.B.
C.
D.
The
E.
A.humans
F.there
G.the
H.coral