练习题考试资料

Educating girls quite possibly yields a higher rate of return than any other investment available in the developing world. Women’s education may be unusual territory for economists, but enhancin...

Interest in pursuing international careers has soared in recent years, enhanced by chronic (长久的) personnel shortages that are causing companies to search beyond their home borders for talent.Pro...

In a country that defines itself by ideals, not by shared blood, who should be allowed to come work and live here? In the wake of the Sept. 11 attacks these questions have never seemed more pressing.O...

Communications technologies are far from equal when it comes to conveying the truth. The first study to compare honesty across a range of communication media has fund that people are twice as likely t...

As we have seen, the focus of medical care in our society has been shifting from curing disease to preventing disease—especially in terms of changing our many unhealthy behaviors, such as poor e...

Reaching new peaks of popularity in North America is Iceberg Water, which is harvested from icebergs off the coast of Newfoundland, Canada.Arthur von Wiesenberger, who carries the title Water Master, ...

I don’t ever want to talk about being a woman scientist again. There was a time in my life when people asked constantly for stories about what it’s like to work in a field dominated by men...

I’ve been writing for most of my life. The book Writing Without Teachers introduced me to one distinction and one practice that has helped my writing processes tremendously. The distinction is b...

In this age of Internet chat, videogames and reality television, there is no shortage of mindless activities to keep a child occupied. Yet, despite the competition, my 8-year-old daughter Rebecca want...

By almost any measure, there is a boom in Internet-based instruction. In just a few years, 34 percent of American universities have begun offering some form of distance learning (DL), and among the la...