發表時間 |
文章標題 |
人氣 |
2018-07-03 |
GRE閱讀|A divide between aesthetic and technical considerations has played a crucial role in mapmaking and cartographic scholarship
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(6801) |
2018-06-14 |
GRE閱讀|Mary Barton, particularly in its early chapters, is a moving response to the suffering of the industrial worker in the England of the 1840’s
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(3171) |
2018-10-15 |
GRE閱讀|About a century ago, the Swedish physical scientist Arrhenius proposed a law of classical chemistry that relates chemical reaction rate to temperature.
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(1532) |
2018-10-15 |
GRE閱讀|Flatfish, such as the flounder, are among the few vertebrates that lack approximate bilateral symmetry
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(989) |
2018-10-13 |
GRE閱讀|Many theories have been formulated to explain the role of grazers such as zooplankton in controlling the amount of planktonic algae (phytoplankton) in lakes
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(1015) |
2018-10-13 |
GRE閱讀|Traditionally, the study of history has had fixed boundaries and focal points — periods, countries, dramatic events, and great leaders
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(814) |
2018-10-12 |
GRE閱讀|When a molten metal or metallic alloy is cooled to a solid, a crystalline structure is formed that depends on the particular alloy composition
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(722) |
2018-10-12 |
GRE閱讀|One advantage of breeding African bees with other bee types (Africanization) may be resistance to the parasitic mite Varroa jacobsoni
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(542) |
2018-10-11 |
GRE閱讀|The success of fluoride in combating dental decay is well established and, without a doubt, socially beneficial
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(609) |
2018-10-11 |
GRE閱讀|Biologists have long maintained that two groups of pinnipeds, sea lions and walruses, are descended from a terrestrial bear like animal
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(666) |
2018-10-10 |
GRE閱讀|Why during sickness should body temperature of warm-blooded animal rise?
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(454) |
2018-10-09 |
GRE閱讀|Because of its accuracy in outlining the Earth's subsurface, the seismic-reflection method remains the most important tool
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(665) |
2018-10-07 |
GRE閱讀|As Gilbert White, Darwin, and others observed long ago, all species appear to have the innate capacity to increase their numbers from generation to generation
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(589) |
2018-10-03 |
GRE閱讀|Shergottites, the name given to three anomalous achondrites (igneous meteorites lacking chondrules) so far discovered on Earth
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(386) |
2018-10-03 |
GRE閱讀|One of the questions of interest in the study of the evolution of spiders is whether the weaving of orb webs evolved only once
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(421) |
2018-10-02 |
GRE閱讀|One explanation for the tendency of animals to be more vigilant in smaller groups than in larger ones assumes that the vigilant behavior
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(427) |
2018-10-02 |
GRE閱讀|Although a historical lack of access to formal Spanish-language education initially limited the opportunities of some Chicanos to hone their skills as writers of Spanish
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(375) |
2018-09-28 |
GRE閱讀|The defoliation of millions of acres of trees by massive infestations of gypsy moth caterpillars
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(346) |
2018-09-27 |
GRE閱讀|Writing of the Iroquois nation, Smith has argued that through the chiefs' council, tribal chiefs traditionally maintained complete control
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(342) |
2018-09-27 |
GRE閱讀|For women feminist literary critic, the subjectivity versus objectivity, or critic-as-artist-or-scientist, debate has special political significance
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(357) |
2018-09-25 |
GRE閱讀|What causes a helix in nature to appear with either a dextral (right-handed, or clockwise) twist or a sinistral (left-handed, or counterclockwise) twist
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(880) |
2018-09-20 |
GRE閱讀|The Earth's magnetic field is generated as the molten iron of the Earth's outer core revolves around its solid inner core
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(350) |
2018-09-20 |
GRE閱讀|It has long been known that during an El Nino, two conditions exist:
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(260) |
2018-09-19 |
GRE閱讀|It is frequently assumed that the mechanization of work has a revolutionary effect on the lives of the people
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(474) |
2018-09-17 |
GRE閱讀| Researchers are finding that in many ways an individual bacterium is more analogous to a component cell of a multicellular organism
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(390) |
2018-09-14 |
GRE閱讀| For some time scientists have believed that cholesterol plays a major role in heart disease because people with familial hypercholesterolemia
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(273) |
2018-09-14 |
GRE閱讀| When speaking of Romare Bearden, one is tempted to say, "A great Black American artist."
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(402) |
2018-09-11 |
GRE閱讀| A long-held view of the history of the English colonies that became the United States has been that England‘s policy toward these colonies before 1763
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(366) |
2018-09-09 |
GRE閱讀| Viruses, infectious particles consisting of nucleic acid packaged in a protein coat
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(327) |
2018-09-07 |
GRE閱讀|Theorists are divided concerning the origin of the Moon
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(279) |
2018-09-06 |
GRE閱讀|Currently, the paramount problem in the field of biomaterials, the science of replacing diseased tissue with human-made implants
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(317) |
2018-09-05 |
GRE閱讀|The deep sea typically has a sparse fauna dominated by tiny worms and crustaceans
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(487) |
2018-09-04 |
GRE閱讀|Geologists have long known that the Earth‘s mantle is heterogeneous, but its spatial arrangement remains unresolved
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(643) |
2018-08-30 |
GRE閱讀|Islamic law is a particularly instructive example of "sacred law ( 2 )
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(487) |
2018-08-30 |
GRE閱讀|Islamic law is a particularly instructive example of "sacred law ( 1 )
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(311) |
2018-08-22 |
GRE閱讀|Volcanic rock that forms as fluid lava chills rapidly is called pillow lava
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(413) |
2018-08-21 |
GRE閱讀|Throughout human history there have been many stringent taboos concerning watching other people eat or eating in the presence of others.
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(370) |
2018-08-21 |
GRE閱讀|Mycorrhizal fungi infect more plants than do any other fungi and are necessary for many plants to thrive
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(472) |
2018-08-17 |
GRE閱讀|In the early 1950's, historians who studied preindustrial Europe (which we may define here as Europe in the period from roughly 1300 to 1800)
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(390) |
2018-08-16 |
GRE閱讀|As of late 1980s, neither theorists nor large-scale computer climate models....
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(2824) |
2018-08-16 |
GRE閱讀|Extraordinary creative activity has been characterized as revolutionary, flying in the face of what is established and producing not what is acceptable but what will become accepted
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(790) |
2018-08-14 |
GRE閱讀|Immediately relevant to game theory are the sex ratios in certain parasitic wasp species that have a large excess of females
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(662) |
2018-06-29 |
GRE閱讀|1800 Thomas Dilworth’s New Guide to the English Dialogue was being widely used to teach reading in the United States
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(1222) |
2018-06-26 |
GRE閱讀|Witnesses to a meteor in Australia in1978 claimed to have heard strange noises as it streaked overhead
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(776) |
2018-06-24 |
GRE閱讀|The presence of work themes in the painting of the impressionist movement of the late nineteenth and early twentieth centuries
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(2232) |
2018-06-21 |
GRE閱讀|Although vastly popular during its time, much nineteenth-century women’s fiction in the United States went unread by the twentieth-century educated elite
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(2549) |
2018-06-14 |
GRE閱讀|During the Pleistocene epoch, several species of elephants isolated on islands underwent rapid dwarfing
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(1556) |
2018-06-13 |
GRE閱讀|Larvae of many marine invertebrate species delay their metamorphosis into juveniles
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(1228) |
2018-06-11 |
GRE閱讀|Biologists generally agree that birds and dinosaurs are somehow related to one another
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(678) |
2018-06-08 |
GRE閱讀|Although the passenger pigeons, now extinct, were abundant in eighteenth- and nineteenth century America
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(2270) |