单选题The billionaires mentioned in the passage don't want to leave much of their wealth to their children because______.

单选题Why does the writer think it is funny that Dame Edna is really a man?

单选题You"ve now heard it so many times, you can probably repeat it in your sleep. President Obama will no doubt make the point publicly when he gets to Beijing: the Chinese need to consume more; they need—believe it or not—to become more like Americans, for the sake of the global economy. And it"s all true. But the other side of that equation is that the U. S. needs to save more. For the moment, American households actually are doing so. After the personal-savings rate dipped to zero in 2005, the shock of the economic crisis last year prompted people to snap shut their wallets. In China, the household-savings rate exceeds 20%. It is partly for policy reasons. As we"ve seen, wage earners are expected to care for not only their children but their aging parents. And there is, to date, only the flimsiest (脆弱的) of publicly-funded health care and pension systems, which increases incentives for individuals to save while they are working. But China is a society that has long esteemed personal financial prudence (谨慎). There is no chance that will change anytime soon, even if the government creates a better social safety net and successfully encourages greater consumer spending. Why does the U. S. need to learn a little frugality (节俭)? Because healthy savings rates are one of the surest indicators of a country"s long-term financial health. High savings lead, over time, to increased investment, which in turn generates productivity gains, innovation and job growth. In short, savings are the seed corn of a good economic harvest. The U. S. government thus needs to act as well. By running constant deficits, it is dis-saving, even as households save more. Peter Orszag, Obama"s Budget Director, recently called the U. S. budget deficits unsustainable and he"s right. To date, the U. S. has seemed unable to see the consequences of spending so much more than is taken in. That needs to change. And though Hu Jintao and the rest of the Chinese leaderships aren"t inclined to lecture visiting Presidents, he might gently hint that Chinese government is getting a little nervous about the value of the dollar—which has fallen 15% since March, in large part because of increasing fears that America"s debt load is becoming unmanageable. That"s what happens when you"re the world"s biggest creditor: you get to drop hints like that, which would be enough by themselves to create international economic chaos if they were ever leaked. (Every time any official in Beijing deliberates publicly about seeking an alternative to the U. S. dollar for the $2.1 trillion China holds in reserve, currency traders have a heart attack. ) If Americans saved more and spent less, consistently over time, they wouldn"t have to worry about all that.

单选题Sam is ______. A. one of the tamest, if not the tamest dog, I know B. anyone of the tame, if not the tamest dog, I know C. one of the tamer, if not the tamest dog, I know D. one of the tamest dogs I know, if not the tamest

单选题The warmth of ______ sweater will of course be determined by the sort of ______ wool used. A) the, the B) the, / C) /, the D) /, /

单选题We must try to ______ the best of our moral values for our children and grand-children.(2002年春季上海交通大学考博试题)

单选题Which of the following is the correct description of [v] ?

单选题He took ______ as to what he should do. A) his friends advise B) his friends advices C) an advice of his friend D) his friends advice

单选题Their first discharge of arrows, stones and two-headed darts which ______ any armour covered the ground.

单选题Saudi Arabia, the oil industry's swing producer, has become its flip-flopper. In February, it persuaded OPEC to cut its total production quotas by lm barrels per day (bpd), to 23.5m, as a precaution against an oil-price crash this spring. That fear has since been replaced by its opposite. The price of West Texas crude hit $40 last week, its highest since the eve of the first Iraq war, prompting concerns that higher oil prices could sap the vigour of America's recovery and compound the frailty of Europe's. On Monday May 10th, Ali al-Naimi, Saudi Arabia's energy minister, called on OPEC to raise quotas, by at least 1.5m bpd, at its next meeting on June 3rd. Thus far, the high oil price has been largely a consequence of good things, such as a strengthening world economy, rather than a cause of bad things, such as faster inflation or slower growth. China's burgeoning economy guzzled about 6m bpd in the first quarter of this year, 15% more than a year ago, according to Goldman Sachs. Demand was also strong in the rest of Asia, excluding Japan, growing by 5.2% to 8. lm bpd. As the year progresses, the seasonal rhythms of America's drivers will dictate prices, at least of the lighter, sweeter crudes. Americans take to the roads en masse in the summer, and speculators are driving up the oil price now in anticipation of peak demand in a few months' time. Until recently, the rise in the dollar price of oil was offset outside America and China by the fall in the dollar itself. But the currency has regained some ground in recent weeks, and the oil price has continued to rise. Even so, talk of another oil-price shock is premature. The price of oil, adjusted for inflation, is only half what it was in December 1979, and the United States now uses half as much energy per dollar of output as it did in the early 1970s. But if oil cannot shock the world economy quite as it used to, it can still give it "a good kick", warns Goldman Sachs. If average oil prices for the year come in 10% higher than it forecast, it reckons CDP growth in the Group of Seven (CT) rich nations will be reduced by 0.3%, or $70 billion. The Americans are certainly taking the issue seriously. John Snow, their treasury secretary, called OPEC's February decision "regrettable", and the rise in prices since then "not helpful". Washington pays close heed to the man at the petrol pump, who has seen the average price of a gallon of unleaded petrol rise by 39 cents in the past year. And the Saudis, some mutter, pay close heed to Washington. Besides, the high oil price may have filled Saudi coffers, but it has also affronted Saudi pride. Mr. al-Naimi thinks the high price is due to fears that supply might be disrupted in the future. These fears, he says, are "unwarranted". But the hulking machinery in the Arabian desert that keeps oil flowing round the world presents an inviting target to terrorists should they tire of bombing embassies and nightclubs. On May 1st, gunmen killed six people in a Saudi office of ABB Lummus Global, an American oil contractor. Such incidents add to the risk premium factored into the oil price, a premium that the Saudis take as a vote of no confidence in their kingdom and its ability to guarantee the supply of oil in the face of terrorist threats.

单选题Which of the following would the best title for the text?

单选题By______scientific rigor with a quantitative approach, researchers in the social sciences may often have______their scope to whose narrowly circumscribed topics that are well suited to quantitative methods.

单选题All 21 things must fight to stay alive. They have to feed on something and at the same time avoid being 22 . Therefore they have to solve this big problem of staying alive in their own way. The danger of being eaten in the sea is great. Those plants and animals that do survive usually 23 very fast and in great numbers. 24 sea animals have defensive devices which help them to survive. The jelly fish have 25 tentacles (触角) which are used for attack and defense. Another method of 26 which sea plants and animals use is disguise. They usually have the same 27 as their surroundings. In order to stay alive, animals need to have good senses. Fishes have sharp eyes. Almost all animals are sensitive to 28 . Fishes judge movements in the water by 29 of their lines. Fishes and other sea animals can hear well and many of them can 30 different types of warning sound.

单选题Many skiers ______ around the fire and drink hot chocolate in the evenings.(2003年中国社会科学院考博试题)

单选题She's already got her air ticket and will go to Canada ______.A. little by littleB. bit by bitC. by and byD. step by step

单选题The most important______for assessment in this contest is originality of design. A. threshold B. partition C. warrant D. criterion