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  • GMAT阅读资料第41篇
    12-06

    It was once assumed that all living things could be divided into two fundamental and exhaustive categories. Multicellular plants and animals, as well ...

  • GMAT阅读资料第42篇
    12-06

    Excess inventory, a massive problem for many busi- nesses, has several causes, some of which are unavoidable. Overstocks may accumulate through produc...

  • GMAT阅读资料第43篇
    12-06

    Historians of women's labor in the United States at first largely disregarded the story of female service workers -women earning wages in occupati...

  • GMAT阅读资料第44篇
    12-06

    According to a recent theory, Archean-age gold-quartz vein systems were formed over two billion years ago from magmatic fluids that originated from mo...

  • GMAT阅读资料第46篇
    12-06

    As the economic role of multinational, global corpora- tions expands, the international economic environment will be shaped increasingly not by govern...

  • GMAT阅读资料第47篇
    12-06

    In Forces of Production, David Noble examines the transformation of the machine-tool industry as the industry moved from reliance on skilled artisans ...

  • GMAT阅读资料第48篇
    12-06

     The sensation of pain cannot accurately be described as "located" at the point of an injury, or, for that matter, in any one place in the n...

  • GMAT阅读资料第49篇
    12-06

    Traditionally, the first firm to commercialize a new technology has benefited from the unique opportunity to shape product definitions, forcing follow...

  • GMAT阅读资料第50篇
    12-06

    Australian researchers have discovered electroreceptors (sensory organs designed to respond to electrical fields) clustered at the tip of the spiny an...

  • GMAT阅读资料第51篇
    12-06

    When A. Philip Randolph assumed the leadership of the Brotherhood of Sleeping Car Porters, he began a ten-year battle to win recognition from the Pull...

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