[单项选择]

Recently, the American Heart Association surveyed 1,000 people nationwide about their thoughts on sodium and heart health. 61% said that they believed sea salt Was a low-sodium alternative to table salt. They can be forgiven for thinking so. Sea salt is marketed as a healthy food, added to soups, potato chips and a wide variety of packaged snacks labeled "low sodium", "all natural" and "healthy". But in reality, sea salt and table salt are not terribly different, at least chemically. The real differences are in how the two are used in cooking.
Table salt comes from underground salt deposits. Companies that sell it typically add something to keep it from clumping (结块). During processing, table salt is stripped of many of its natural minerals. Sea salt, on the other hand, is made from evaporated seawater, with little processing, it retains most of its minerals, which some cooks say give it a better flavor.
But both contain the sa
A. consume much more salt than they actually need
B. consume about 2,300 milligrams of salt a day
C. prefer fresh food to salted processed food
D. try to limit their salt consumption of any kind

[填空题]The American Medical Association supports smoking and published research on the subject.

[填空题]The American Medical Association ...

[单项选择]Until recently, most American entrepreneurs (企业家)were men. Discrimination against women in business, the demands of caring for families, and lack of business training had kept the number of women entrepreneurs small. Now, however, businesses owned by women account for more than ＄40 billion in annual revenues, and this figure is likely to continue rising throughout the 1980s. As Carolyn Doppelt Gray, an official of the Small Business Administration, has noted, "The 1970s was the decade of women entering management, and the 1980s has turned out to be the decade of the woman entrepreneur."
What are some of the factors behind this trend For one thing, as more women earn advanced degrees in business and enter the corporate world, they are finding obstacles. Women are still excluded from most executive suites. Charlotte Taylor, a management consultant, had noted, "In the 1970s women believed if they got an MBA and worked hard, they could become chairman of the board. Now they’ve found
A. women were not trained in business
B. women lacked ability to work in business
C. women were required to stay at home with their families
D. women face discrimination in business

[单项选择]The American Medical Association has called for the sport of boxing (拳击) to be banned.
A. forbidden
B. regulated
C. studied
D. reorganized

[填空题]
The heart of the American calendar is July 4. Americans have celebrated this date as "Independence Day" since 1776. In a (1) atmosphere of this holiday, patriotic speeches remind Americans of their (2) . July 4 represents the heartbeat of America:freedom.
When Americans think of freedom they often think of (3) . American - style democracy tries to protect individual rights. People in other cultures may not understand this (4) .
Privacy is one good example of individual rights. Personal freedom in America often means the right to one’s own (5) . American don’t want to invade someone’s privacy, even if they know the person quite well. They prefer to keep many "family matters" private. (6) , individuals may not share in conversation such information as salary, age, (7) status or religion.
In American culture, freedom also implies equality. For