An analyst estimates a value of $45 for a stock with a market price of $50. The analyst is most likely to conclude that a stock is overvalued if:

A、Increase in the sample size

B、Use of point estimates rather than confidence intervals

C、Use of the t-distribution rather than the normal distribution to establish confidence intervals

A.$33.54.

B.$36.52.

C.$43.95.

he state of the economy:The expected return of the stock is______.

A．7.8%

B．11.4%

C．0.117

D．0.13

A、overvalued.

B、Fairly valued

C、undervalued.

A.ATM consumers.

B.ATM and debit-card fraud.

C.ATM technology.

D.E-mail information.

many banks are letting thieves get away with an increasingly common fraud at a cost of several billion dollars a year. A report Tuesday from Gartner, a technology analyst firm, estimates that 3 million U.S. consumers were victims of ATM and debit-card fraud in the past year. The fraud most commonly begins when a criminal engages in "phishing"--sending a legitimate-seeming e-mail with a link to a phony Web site that appears to belong to a consumer's bank, Gartner analyst Avivah Litan says. The e-mail recipients are asked to give their account information, including PIN numbers. With that information" harvested," fraudsters can make their own cards for automated teller machines and withdraw huge sums.

What is this passage about？

A．ATM consumers.

B．ATM and debit-card fraud.

C．ATM technology.

D．E-mail information.

A Census Bureau (人口调查局) survey released Thursday shows a college graduate can expect to earn $ 2. 1 million working full-time between 25 and 64, which demographers (人口学家) call a typical work-life period. A master' s degree-holder is projected to earn 2.5 million, while someone with a professional degree, such as a doctor or lawyer, could make even more--$ 4.4 million. In contrast, a high school graduate can expect to make $ 1.2 million during the working years, according to the bureau report that tracked the influence of education on lifetime earnings.

Not all students look at college as an investment, "but I am sure parents do," said Jacque line King, policy analyst with the American Education Council, a higher education advocacy (拥护) group. "The college is to convince those high school students on the margins that it is really worth their time to go to college." Kevin Malecek, a graduate student in American poli tics at American University in Washington said most of his classmates find higher education to be worth the time and financial promise. "They go to every single class, and they are trying to get the most out of their own dollar," he said. The survey was conducted between March 1998 and March 2000. All estimates are based on 1999 salaries and probably will increase as salaries rise over time, Census Bureau analyst Jennifer Day said. The estimates do not account for inflation (物价上涨) or for differences in the earning potential of various fields of study. For example, people with computer science degrees tend to earn more than those with social work degrees.

The phrase "students on the margins" in Line 3 of Paragraph 2 most probably refers to ______.

A．students Who actually regard higher education as an investment

B．students who can't afford the money to go to college or university

C．students who can't go to college because they have failed in the college entrance examination

D．students who don' t know whether higher education can have great influence on their earnings

A Census Bureau (人口调查局) survey released Thursday shows a college graduate can expect to earn $ 2. 1 million working full-time between 25 and 64, which demographers (人口学家) call a typical work-life period. A master' s degree-holder is projected to earn 2.5 million, while someone with a professional degree, such as a doctor or lawyer, could make even more--$ 4.4 million. In contrast, a high school graduate can expect to make $ 1.2 million during the working years, according to the bureau report that tracked the influence of education on lifetime earnings.

Not all students look at college as an investment, "but I am sure parents do," said Jacque line King, policy analyst with the American Education Council, a higher education advocacy (拥护) group. "The college is to convince those high school students on the margins that it is really worth their time to go to college." Kevin Malecek, a graduate student in American poli tics at American University in Washington said most of his classmates find higher education to be worth the time and financial promise. "They go to every single class, and they are trying to get the most out of their own dollar," he said. The survey was conducted between March 1998 and March 2000. All estimates are based on 1999 salaries and probably will increase as salaries rise over time, Census Bureau analyst Jennifer Day said. The estimates do not account for inflation (物价上涨) or for differences in the earning potential of various fields of study. For example, people with computer science degrees tend to earn more than those with social work degrees.

The phrase "students on the margins" in Line 3 of Paragraph 2 most probably refers to ______.

A．students Who actually regard higher education as an investment

B．students who can't afford the money to go to college or university

C．students who can't go to college because they have failed in the college entrance examination

D．students who don' t know whether higher education can have great influence on their earnings

lectricity needs of gadgets like MP3 players, mobile phones and flat screen TVs. In a report today, the Paris-based International Energy Agency estimates new electronic gadgets will triple their energy consumption by 2030 to 1 700 terawatt(太瓦)hours, the equivalent of todays home electricity consumption of the United States and Japan combined. The world would have to build around 200 new nuclear power plants just to power all the TVs, IPods, PCs and other home electronics expected to be plugged in by 2030, when the global electric bill to power them will rise to $ 200 billion a year, the IEA said. Consumer electronics is "the fastest growing area and its the area with the least amount of policies in place" to control energy efficiency, said Paul Waide, a senior policy analyst at the IEA. Electronic gadgets already account for about 15 percent of household electric consumption, a share that is rising rapidly as the number of these gadgets multiplies. Last year, the world spent $80 billion on electricity to power all these household electronics, the IEA said. Most of the increase in consumer electronics will be in developing countries, where economic growth is fastest and ownership rates of gadgets is the lowest, Waide said. "This will jeopardize efforts to increase energy security and reduce the emission of greenhouse gases," blamed for global warming, the agency said. Existing technologies could cut down gadgets energy consumption by more than 30 percent at no cost or by more than 50 percent at a small cost, the IEA estimates, meaning total greenhouse gas emissions from households electronic gadgets could be held stable at around 500 million tons of CO2 per year.

The energy consumption of new electronic gadgets at present______.

A．is nearly 1 700 terawatt hours

B．is nearly 600 terawatt hours

C．equals to the home electricity consumption of the United States

D．is greater than the home electricity consumption of Japan