Just seven years ago, the Jarvik-7 artificial heart was being cheered as the model of human creativeness. The sight of Barney Clark-alive and con...详细内容
The speaker, a teacher from a community college, addressed a sympathetic audience. Heads nodded in agreement when he said, "High school English teacher...详细内容
Becket not only traveled light, he lived light. In all the world he owned just the clothes he stood up in, a full suitcase and a bank account. Arriving...详细内容
Is there a "success personality"—some winning combination of qualities that leads almost inevitably to achievement? If so, exactly what is that ...详细内容
The New World to which Columbus came at the end of the fifteenth century was not, as we are tempted to believe, a wholly savage and untamed place...详细内容
Psychologists now believe that noise has a considerable effect on Peoples attitudes and behavior. Experiments have proved that in noisy situation...详细内容
In a family where the roles of men and women are not sharply separated and where many household tasks are shared to a greater or lesser extent, notions...详细内容
In 1944 a 22-year-old Army medic(卫生兵) was answering a battle-field cry for help when fragments of an exploding German shell tore into him."Gee doc,I feel like both my arms w...详细内容
The advantages and disadvantages of a large population have long been a subject of discussion among economists.It has been argued that the supply of go...详细内容
Students who score high in achievement needs tend to make higher grades in college than those who score low.When degree aptitude for college work...详细内容
Observe the dilemma of the fungus(真菌): it is a plant, but it possesses no chlorophyll(叶绿素) while all other plants put the suns energy to work for them combining the nutrie...详细内容
Good sense is the most equitably distributed thing in the world ,for each man considers himself so well provided with it that even those who are most difficult to satisfy in ev...详细内容
Classified Advertising is that advertising which is grouped in certain sections of the paper and is thus distinguished from display advertising. ...详细内容
