GRE-GMAT英语大全

In an attempt to improve the overall performance of clerical workers, many companies have introduced com- puterized performance monitoring and control...

In recent years, teachers of introductory courses in Asian American studies have been facing a dilemma nonexistent a few decades ago, when hardly any ...

Although numbers of animals in a given region may fluctuate from year to year, the fluctuations are often temporary and, over long periods, trivial. S...

Some observers have attributed the dramatic growth in temporary employment that occurred in the United states during the 1980's to increased parti...

Two modes of argumentation have been used on behalf of women's emancipation in Western societies. Arguments in what could be called the "rela...

Although genetic mutations in bacteria and viruses can lead to epidemics, some epidemics are caused by bacteria and viruses that have undergone no sig...

Seeking a competitive advantage, some professional service firms(for example, firms providing advertising, accounting, or health care services) have c...

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...

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

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