As the case illustrates, competition takes four general forms: pure competition, monopoly, monopolistic
competition, and oligopoly(少数制造商对市场的控制).
The classic example of pure competition occurs with a commodity, like wheat or corn, that has so many producers
that no one of them can control its selling price.
A monopoly occurs when one company alone offers a particular food or service and therefore controls the market
and price for it.
Private restaurants serve gourmet food for $70 per person; incentives boosted agricultural production 25 percent
and industrial output 80 percent in just three years; farmers are encouraged to raise as much as they can on their
own plots, and some become almost rich in the process.(注意本句中分号的使用)
All these changes in China’s economic life have brought changes in China’s social and cultural life as well, many
of which unwanted.
If productivity measures the efficiency of an economy, a measure of what an economic system produces is its gross
national product (GNP), which is the current market value of all final goods and services that a nation produces
within a particular period.
Current wisdom says that (当前流行的看法认为)if you want a successful product, you need first to perform
detailed market analysis, making sure that there are plenty of people who need the new product and that your entry
into the market will be able to gain a significant share of that market.
Started at the turn of the century, 3M ( a giant American company) has been growing at a healthy rate of about 10
percent a year and it boasts of having 45,000 products on the market.
An entrepreneur is someone like Tom Monaghan, the man who after brushes with bankruptcy turned Domino’s
Pizza into the nation’s fastest - growing franchise chain.
The extent to which the broadcast media should be censored for offensive language and behavior involves a
conflict between our right as individuals to freely express ourselves and the duty of government to protect its
citizenry from potential harm.
Although we may not have conclusive scientific evidence of a cause - effect relationship, ample anecdotal
evidence establishes a significant correlation.
Moreover, both common sense and our experiences with children inform us that people tend to mimic the language
and behavior they are exposed to.
Those who advocate unbridled individual expression might point out that the right of free speech is intrinsic to a
democracy and necessary to its survival.
In sum, it is in our best interest as a society for the government to censor broadcast media for obscene and
offensive language and behavior.
While individuals have primary responsibility for learning new skills and finding work, both industry and
government have some obligation to provide them with the means of doing so.
The suggested reason for buying the car is obvious: it is the intelligent choice.(注意冒号的使用)
In conclusion, I agree that appeals to emotion are more powerful tools than arguments and reasoning for promoting
products.
Advertising is obviously the most influential art form in this century; it is, therefore, tempting to think that it is the
most important.
The lesson here is that advertising, in itself, probably will not achieve as great importance as art.
Requiring businesses to provide complete product information to customers promotes various consumer interests,
but at the same time imposes burdens on businesses, government, and taxpayer.
While I doubt that buildings determine our character or basic personality traits, I argue that they can greatly
influence our attitudes, moods, and even life styles.