单选题According to the passage, Milton ______.
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单选题The country was an island that enjoyed civilized living for a thousand years or more with little______ from the outside world. A.discrimination B.irritation C.disturbance D.irregularity
单选题The author believes that an MBA degree could______.
单选题Our feelings about external reality have their origin in ______.
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单选题What attitude did the author adopt toward what the government did?
单选题A.Leadingastudyonchangesinenvironmentalconditionsandnewtrends.B.Developingchaostheorywithherfriends.C.Forecastingandpredictinglong-termtrendsofthefinancialdevelopment.D.Explainingthemovementoftheplanets.
单选题All the periodicals to which the library______ are to be ordered for a further year.
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{{B}} Questions 22 to 25 are based on the
conversation you have just heard.{{/B}}
单选题The football club decide to ______ its working con tract with the head coach because of its team's poor performance during his coaching.
单选题 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.
单选题 Questions 16 to 18 are based on the passage
you have just heard.
单选题Why does the author think it unnecessary to put the cell phone on a restaurant table?
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{{B}}Questions 11 to 18 are based on the conversation
you have just heard.{{/B}}
单选题What is this passgage mainly concerned with?
单选题It may be the last book you'll ever buy. And certainly, from a practical standpoint, it will be the only book you' ll ever need. No. It' s not the Bible or some New Age tome promising enlightenment—although it would let you carry around both texts simultaneously. It' s an electronic book—a single volume that could contain a library of information or, if your tastes run toward what's current, every title on today' s best-seller list. And when you' re done with those, you could refill it with new titles. Why an electronic book? Computers can store a ton of data and their laptop companions make all that information portable. True enough. But laptops(便携式电脑) and similar portable information devices require a lot of power and heavy batteries to keep their LCD screens operating. And LCDs are not easy to read in the bright light of the sun. Fact is, when it' comes to portability, easy viewing, and low power requirements, it' s hard to beat plain old paper. So let' s make the ink electronic. That' s the deceptively simple premise behind a project currently coming to fruition at the Massachusetts Institute of Technology. Some hurdles—mostly having to do with large-scale manufacturing—remain, so it will be a few years before you see an electronic book for sale in stores. But the basic technology already exists, developed at the Institute' s Media Lab by a team led by physicist Joe Jacobson. Thanks to electronic ink, the book essentially typesets itself, receiving instructions for each page via electronics housed in the spine. From a power standpoint, this process makes the electronic book very efficient. Unlike an LCD screen, which uses power all the time, energy is no longer needed to view the electronic book' s pages once they are typeset. Only a small battery would be required, as opposed to the large ones needed to power laptop computers and their LCDs. Convenience, though, is still the main attraction—and that means more than simple portability. Because the information is in electronic form, it can be easily manipulated. Jacobson thinks an electronic book will be affordable—around $ 200 for a basic read-only model to about $ 400 for one that would record your margin scribbles. Some hurdles remain, though, before you can take an electronic book with you anywhere. Paper is produced in long sheets, and Jacobson is still working on the best method to integrate electronic ink into that process. To avoid having to use thousands of tiny wires on each page, the ink itself must be conductive. Such ink was recently demonstrated in the lab but has yet to be produced in volume. " Essentially," notes Jacobson, " We're trying to print chips. " Jacobson is confident, however, that this can be done on a large scale. If Jacobson succeeds, he will have made the book for the 21st century.
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