[填空题]The implication seems to be that _________________________ (不可能在进行经济改革的同时实现民主).

[单项选择]What does the implication of the study
A. The results of the study show that it is a step in the direction of a possible cure of AIDS.
B. The results of the study show that the sleeping cells could be activated by this drug.
C. The results of the study show that the drugs could get at the virus in the sleeping cells.
D. The results of the study show that the risk of the AIDS will not go away.

[单项选择]An implication of the weak-form efficient market hypothesis (EMH) is:（）
A. insider information is of no value for obtaining excess abnormal returns.
B. that there should be no relationship between past price changes and future price changes.
C. that technical analysts can make excess returns on filter rules but not runs rules.

[简答题]Yet the implication that rapid change is a new phenomenon is again misleading. If you measure the time it takes for a technology to become widely diffused, today’s experi ence does not seem unusual. Take the car. The basic patent for an internal-combustion en gine capable of powering a car was filed in 1877. By the late 1920s—50 years later—over half of all American households owned a car.

[单项选择]Which of the following is NOT an implication of risk aversion for the investment process（　）
A. The security market line is upward sloping.
B. The promised yield on AAA-rated bonds is higher than on A-rated bonds.
C. Investors expect a positive relationship between expected return and expected risk.

[填空题]

A. receipt
B. implication
C. empty
D. concept

[填空题]
Electromagnetic Energy
White light seems to be a combination of all colors. The energy that comes from a source of light is not limited to the kind of energy you can see. Heat is given off by a flame or an electric light. On a cloudy day it is possible to get a sunburn even though you feel cool. Visible light and the kind of energy that produce warmth and sunburn are examples of electromagnetic energy.
The sun is 93 million miles from the earth. Yet we can use energy from the sun because electromagnetic energy travels through space.
Many other kinds of energy are also types of electromagnetic energy. Radio, television, and radar signals travel from transmitters to receivers as low-energy electromagnetic waves, infrared (红外线的) radiation is an electromagnetic wave. When it is absorbed by matter, heat is produced. Waves of infrared and visible light have more energy than waves of radio, television, or radar. Ultraviolet rays (紫外线) and X-rays are electromagnetic waves with even greater amounts of energy. Infrared radiation is used in cooking food and heating buildings. Sunlight and electric lights are part of our requirements for normal living. Ultraviolet radiation is useful in killing certain disease organisms. X-rays and gamma rays have so mush energy that they travel right through solid objects. They can be used to detect and treat cancer. X-rays are used in industry to find hidden cracks in metal, and in medicine to reveal broken bones.
Usually we use electricity to generate electromagnetic energy. The source of most of our energy is the sun. Heat from the sun causes water to evaporate. When the water falls to the earth as rain, some of it is trapped behind dams and then used to operate electric generators. Other generators are powered by coal, but the energy stored in coal came from the sun, too.
Until recently, the source of the tremendous amount of energy given off by the sun was a puzzle. If the sun depended on chemical reactions, it would have used up all its energy long ago. Experiments with electromagnetic radiation led to the theory that mass can be converted into energy. About forty years after the theory was proposed, nuclear energy was harnessed (利用) by man. Chemical energy comes from electron (电子) rearrangement. Nuclear energy comes from a change in the nucleus of an atom. Compared with chemical reactions, nuclear reactions release millions of times more energy per pound of fuel. We now believe that the sun’s energy comes from the nuclear reactions in which hydrogen is changed into helium (氦).
Nuclear energy is beginning to compete with coal as an economical source of power to generate electricity. It is also being used to operate engines in large ships. Scientists continue to seek new and better methods of obtaining and using energy.Paragraph 3 ______. A. Nuclear reactions as the lasting source of the sun’s energy B. The most important source of energy C. Types of electromagnetic energy D. The machines used for energy generation E. Seeking new sources of energy F. The use of ultraviolet radiation in medicine

[单项选择]

Conventional wisdom about conflict seems pretty much cut and dried. Too little conflict breeds apathy and stagnation. Too much conflict leads to divisiveness and hostility. Moderate levels of conflict, however, can spark creativity and motivate people in a healthy and competitive way.
Recent research by Professor Charles R. Schwenk, however, suggests that the optimal level of conflict may be more complex to determine than these simple generalizations. He studied perceptions of conflict among a sample of executives. Some of the executives worked for profit-seeking organizations and others for not-for-profit organizations.
Somewhat surprisingly, Schwenk found that opinions about conflict varied systematically as a function of the type of organization. Specifically, managers in not-for-profit organizations strongly believed that conflict was beneficial to their organizations and that it promoted higher quality decision making than might be achieved in the absence of
A. wrong
B. oversimplified
C. misleading
D. unclear

[单项选择]Text 2