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A．It's a comparison, he wants to describe how earthquakes cause turbidity currents.
B．He wants to describe desert winds.
C．He means desert winds can cause turbidity currents.
D．He just talks about another topic.
答案
更多“A．It's a comparison, he wants to describe how earthquakes cause turbidity currents.B．H”相关的问题
第1题
A．It is the highest.
B．It is the lowest.
C．It comes in between the other two jobs.
D．No such comparison is made in the conversation.
第2题
In their thirst for evidence on this issue, commentators seized on the recent report by the Census Bureau, which found that average household income rose by 5.2% in 2015. Unfortunately, that conclusion puts too much weight on a useful, but flawed and incomple te, statistic. Among the more significant problems with the Census’s measure are that: 1) it excludes taxes, transfers, and compensation like employer-provided health insurance; and 2) it is based on surveys rather than data. Even if precisely measured, income data exclude important determinants of economic well-being, such as the hours of work needed to earn that income.
While thinking about the question, we came across a recently published article by Charles Jones and Peter Klenow, which proposes an interesting new measure of economic welfare. While by no means perfect, it is considerably more comprehensive than average income, taking into account not only growth in consumption per person but also changes in working time, life expectancy, and inequality. Moreover, it can be used to assess economic performance both across countries and over time.
The Jones-Klenow method can be illustrated by a cross-country example. Suppose we want to compare the economic welfare of citizens of the U.S. and France in 2005.
In 2005, as the authors observe, real consumption per person in France was only 60% as high as the U.S., making it appear that Americans were economically much better off than the French on average. However, that comparison omits other relevant factors: leisure time, life expectancy, and economic inequality. The French take longer vacations and retire earlier, so typically work fewer hours; they enjoy a higher life expectancy, presumably reflecting advantages with respect to health care, diet, lifestyle, and the like; and income and consumption are somewhat more equally distributed there than in the U.S. Because of these differences, comparing France’s consumption with the U.S.’s overstates the gap in economic welfare. Similar calculations can be used to compare the U.S. and other countries. For example, this calculation puts economic welfare in the United Kingdom at 97% of U.S. levels, but estimates Mexican well-being at 22%.
The Jones-Klenow measure can also assess an economy’s performance over time. According to this measure, as of the early-to-mid-2000s, the U.S. had the highest economic welfare of any large country. Since 2007, economic welfare in the U.S. has continued to improve. However, the pace of improvement has slowed markedly. Methodologically, the lesson from the Jones-Klenow research is that economic welfare is multi-dimensional. Their approach is flexible enough that in principle other important quality-of life changes could be incorporated—for example, decreases in total emissions of pollutants and declines in crime rates.
What does the author think of the 2015 report by the Census Bureau？
A.It is based on questionable statistics.
B.It reflects the economic changes.
C.It evidences the improved welfare.
D.It provides much food for thought.
What does the author say about the Jones-Klenow method？
A.It is widely used to compare the economic growth across countries.
B.It revolutionizes the way of measuring ordinary peopled livelihood.
C.It focuses on people’s consumption rather than their average income.
D.It is a more comprehensi ve measure of people’s economic well-being.
What do Jones and Klenow think of the comparison between France and the U.S. in terms of real consumption per person？
A.It reflected the existing big gap between the two economies.
B.It neglected many important indicators of people’s welfare.
C.It covered up the differences between individual citizens.
D.It failed to count in their difference in natural resources.
What is an advantage of the Jones-Klenow method？
A.It can accurately pinpoint a country’s current economic problems.
B.It can help to ra ise people’s awareness of their economic well-being.
C.It can diagnose the causes of a country’s slowing pace of economic improvement.
D.It can compare a country’s economic conditions between different periods of time.
What can we infer from the passage about American people’s economic well-being？
A.It is much better than that of their European counterparts.
B.It has been on the decline ever since the turn of the century.
C.It has not improved as much as reported by the Census Bureau.
D.It has not been accurately assessed and reported since mid-2000s.
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第3题
"Venus has nothing," is the blunt word from planetologist Kevin Zahnle of NASA Ames Research Center in Calitfornia's Silicon Valley. "We've written it off."
Yet a small group of advanced life-forms on Earth begs to differ, and theorizes that bizarre microbial ecosystems might have once populated Venus and, in fact, may be there still. Members of this loose band of researchers suggest that their colleagues have water too much on the brain, and are, in a sense, H2O chauvinists (盲目的爱国者).
"Astrobiologists are neglecting Venus due more to narrow thinking than actual knowledge of the environment, or environments, where life can thrive," says Dirk Schulze-Makuch, a geobiologist at the University of Texas at E1 Paso who recently co-authored a Venus-boosting paper in Astrobiology with colleague Louis Irwin.
The bias against life on Venus is partly rooted in our own biology. Human experience instructs that liquid water, preferably lot of it, is essential for life. In search for extraterrestrial life, we obsess over small rivers in Mars' surface apparently carved by ancient gushes of water, and delight in hints of permafrost (永久冻结带) just underneath its surface. (By comparison, Venus isn't even that interesting to look at: A boring cue ball (台球的白色母球) for backyard astronomers, its clouds reflects 75% of visible light.) Attention and then funding follow the water: Three more landers will depart for Mars this spring, and serious plans for sample-return missions hover in the midterm future.
"If you have limited resources, you base exploration on what you know," says Arizona State University planetary geologist Ronal Greeley. It's like losing your keys on the way home at night: The first place you look is under the streetlights not because they're more likely to be there, but because if they are, you'll spot them. For astrobiologists, the streetlights are the spectral (光谱的)lines for water, and they've spotted that potential on Mars, Jupiter's moon Europa, even Neptune's moon Triton. Not on the baking rocky flats of Venus.
Venus is the hottest of all the nine planets in the solar system because______.
A．it is not so close to the Sun as Mercury
B．many volcanoes spread the whole planet
C．it is covered by a thick layer of cloud
D．greenhouse effect is uncontrollable on it
第4题
In this passage, the author is primarily concerned with ________.
A) the interpretation of the term “environment”
B) the discussion on organisms and biological environment
C) the comparison between internal and external factors influencing man
D) the evaluation of man’s influence on culture
第5题
By "a well-oiled cog in the machinery" (Para. 1) the author intends to render the idea that man is ______ .
A．a necessary part of the society though each individual's function is negligible
B．working in complete harmony with the rest of society
C．an unimportant part in comparison with the rest of the society, though functioning smoothly
D．a humble component of the society; especially when working smoothly
第6题
A．It is the revolution of the brain's memory.
B．It is the challenge for the brain's capacity.
C．It is the activator of the brain's evolution.
D．It is the revelation of the brain's genius.
第7题
A．It's too expensive.
B．It would take too long.
C．Nothing's worth seeing.
D．He's been there before.
第8题
A．It was left in David's office.
B．It was left in Kate's office.
C．It was lost in the train some day.
D．It was left in the Johnsons'.
第9题
A．It's cheaper.
B．It's safer.
C．It's quicker.
D．It's readily available.
