The war was the most peaceful period of my life. The window of my bedroom faced southeast. My mother had curtained it，but t...

Less than a year ago， a new generation of diet pills seemed to offer the long-sought answer to our chronic weight problems....

Less than a year ago， a new generation of diet pills seemed to offer the long-sought answer to our chronic weight problems....

Every living thing has an inner biological clock that controls behavior. The clock works all the time; even when there are ...

Technically, any substance other than food that alters our bodily or mental functioning is a drug. Many people mistakenly b...

No company likes to be told it is contributing to the moral decline of a nation. Is this what you intended to accomplish wi...

考博英语 阅读理解每日一练41 Much of the language used to describe monetary policy, such as steering the economy to a soft landing or...

Technically, any substance other than food that alters our bodily or mental functioning is a drug. Many people mistakenly b...

Recent years have brought minority-owned businesses in the United States unprecedented opportunities — as well as new and s...

The fossil remains of the first flying vertebrates, the pterosaurs, have intrigued paleontologists for more than two centur...