Scattered around the
globe are more than 100 small regions of isolated volcanic activity
known to geologists as hot spots. Unlike most of the world’s
volcanoes, they are not always found at the bounda...

Emerging from the
1980 census is the picture of a nation developing more and more
regional competition, as population growth in the Northeast and
Midwest reaches a near standstill.
1980年美国人口普查表明：随着东北部...

Science has long had
an uneasy relationship with other aspects of culture. Think of
Gallileo’s 17th-century trial for his rebelling belief before the
Catholic Church or poet William Blake’s harsh rema...

Well, no gain
without pain, they say. But what about pain without gain?
Everywhere you go in America, you hear tales of corporate revival.
What is harder to establish is whether the productivity revol...

Few creations of big
technology capture the imagination like giant dams. Perhaps it is
humankind’s long suffering at the mercy of flood and drought that
makes the idea of forcing the waters to do our ...

8.
考研大纲单词和四、六级大纲单词有什么区别？
答：《考研大纲》上明确写的大纲单词总数是5500个单词，这和六级大纲单词要求数量一致。但是，加上派生词，历年出现过的超纲词那么总数大概是5594个左右。
四级《大纲》要求领会式掌握4200个单词以及由这些词构成的常用词组1600条（中学所掌握的单词和词组均包括在内），并具有按照基本构词法识别生词的能力。
六级《大纲》要求掌握...

Much of the language
used to describe monetary policy, such as “steering the economy to
a soft landing” or “a touch on the brakes,” makes it sound like a
precise science. Nothing could be further from...

No company likes to
be told it is contributing to the moral decline of a nation. “Is
this what you intended to accomplish with your careers?” Senator
Robert Dole asked Time Warner executives last week...

Technically, any
substance other than food that alters our bodily or mental
functioning is a drug. Many people mistakenly believe the term drug
refers only to some sort of medicine or an illegal chemi...