练习题考试资料

It is a curious paradox that we think of the physical sciences as hard”, the social sciences as soft,” and the biological sciences as somewhere in between. This is interpreted to mean that...

In the last 12 years total employment in the United States grew faster than at any time in the peacetime history of any country – from 82 to 110 million between 1973 and 1985 – that is, by...

What does the future hold for the problem of housing? A good deal depends, of course, on the meaning of future”. If one is thinking in terms of science fiction and the space age, it is at least ...

Scattered through the seas of the world are billions of tons of small plants and animals called plankton. Most of these plants and animals are too small for the human eye to see. They drift about lazi...

The gift of being able to describe a face accurately is a rare one, as every experienced police officer knows to his cost. As the Lancet put it recently:” When we try to describe faces precisely...

There are spectacular differences between financial markets on the Continent of Europe on the one hand, and in Britain on the other hand. In Britain, the market is really the City of London. It is a f...

Jogging has become the most popular individual sport in America. Many theories, even some mystical ones, have been advanced to explain the popularity of jogging. The plain truth is that jogging is a c...

There was on shop in the town of Mufulira, which was notorious for its color bar. It was a drugstore. While Europeans were served at the counter, a long line of Africans queued at the window and often...

The life story of the human species goes back a million years, and there is no doubt that man came only recently to the western hemisphere. None of the thousands of sites of aboriginal (土著的) hab...

The British psychoanalyst John Bowlby maintains that separation from the parents during the sensitive attachment” period from birth to three may scar a child’s personality and predispose t...