【单选题】Apeculiarfeatureoftheembryonicmammaliancirculatorysystemisthatintheareaoftheheartthecellsadheretooneanother,beatinginunisonandadoptingspecializedorientationsexclusiveofoneanother.()
(A)beatinginunisonandadopting
(B)theybeatinunisonwhileadopting
(C)beatinunison,andadopt
(D)beatinginunisonyetadopting
(E)eventhoughtheybeatinunisonandadopt
(A)beatinginunisonandadopting
(B)theybeatinunisonwhileadopting
(C)beatinunison,andadopt
(D)beatinginunisonyetadopting
(E)eventhoughtheybeatinunisonandadopt
【单选题】AfterQueenIsabellaaskedAdmiralColumbustodescribetheislandofHispaniola(nowHaiti),whichwasnewlydiscovered,hehadreachedforasheetofpaper,crumpledit,andsaid,"Itlookslikethat-beyondthemountains,moremountains."()
(A)AfterQueenIsabellaaskedAdmiralColumbustodescribetheislandofHispaniola(nowHaiti),whichwasnewlydiscovered,hehadreached
(B)OnbeingaskedtodescribethenewdiscoveryoftheislandofHispaniola(nowHaiti)byQueenIsabella,AdmiralColumbus,reaching
(C)QueenIsabellaaskedAdmiralColumbustodescribethenewlydiscoveredislandofHispaniola(nowHaiti),thenhereached
(D)WhenaskedbyQueenIsabellatodescribethenewlydiscoveredislandofHispaniola(nowHaiti),AdmiralColumbusreached
(E)AfterQueenIsabellahadaskedAdmiralColumbustodescribethediscoveryoftheislandofHispaniola(nowHaiti),hehadreached
(A)AfterQueenIsabellaaskedAdmiralColumbustodescribetheislandofHispaniola(nowHaiti),whichwasnewlydiscovered,hehadreached
(B)OnbeingaskedtodescribethenewdiscoveryoftheislandofHispaniola(nowHaiti)byQueenIsabella,AdmiralColumbus,reaching
(C)QueenIsabellaaskedAdmiralColumbustodescribethenewlydiscoveredislandofHispaniola(nowHaiti),thenhereached
(D)WhenaskedbyQueenIsabellatodescribethenewlydiscoveredislandofHispaniola(nowHaiti),AdmiralColumbusreached
(E)AfterQueenIsabellahadaskedAdmiralColumbustodescribethediscoveryoftheislandofHispaniola(nowHaiti),hehadreached
【单选题】(23-1)(23+1)(26+1)(212+1)=
A、(224-1)
B、 (224-1)
C、(248-1)
D、(296+1)
E、26(212-1)
A、(224-1)
B、 (224-1)
C、(248-1)
D、(296+1)
E、26(212-1)
【单选题】The questions in this group are based on the content of a passage.After reading the passage, choose the best answer to each question.Answer all questions following the passage on the basis of what is stated or implied in the passage.
Since the 1970s, a multitude of scientists from the fields of climatology, oceanography, and biology have been warning the governments of the world that unless human societies reduce their emissions of "greenhouse gases"--gases such as carbon dioxide and methane that increase the capacity of the atmosphere to retain heat--world-wide global warming caused by these gases will result in catastrophic consequences for people and the environment. InDecember 1997, a group of delegates from over 100 nations gathered together in Kyoto, Japan, in order to work out the details of the Kyoto Protocol to the United Nations FrameworkConvention onClimateChange, the most comprehensive international effort to date to combat the rise of greenhouse gas emissions.
The chief goal of the Kyoto Protocol is for industrialized nations to reduce their emissions of green-house gases by 5.2 percent compared to 1990 levels. The gases targeted by the protocol are carbon dioxide, methane, nitrous oxide, sulfur hexafluoride, HFCs, and PFCs. The protocol contains some provisions for developing nations, but as the per-capita emissions of greenhouse gases from these nations are much lower than those of industrialized nations, the majority of the reductions called for by the protocol come from theEuropean Union (8 percent reduction from 1990 levels), the United States (7 percent reduction), and Japan (6 percent reduction).
Proponents of the Kyoto Protocol maintain that although it is not sufficient by itself to halt global warming, it represents an important first step toward a sustainable global economy. These proponents argue that most of the reductions in green-house gases can be achieved through improvements in efficiency and the use of cleaner fuels. While they concede that the provisions of the protocol may slow economic growth in affected nations, they maintain that the potential economic costs are far outweighed by the benefits of avoiding the ravages of global warming, which they say could include rising sea levels, erratic weather patterns, and long-term reductions in biodiversity.
Critics of the Kyoto Protocol argue that it is unnecessary, unfair, and too costly to implement. It is unnecessary, they maintain, because the scientific community is still divided on the questions of whether global warming is happening and, if it is, whether human activity is the cause. They say it is unfair because the provisions primarily limit the emissions growth of industrialized nations while giving free rein to developing nations such as India, which actually emit more greenhouse gases than many industrialized nations, and that this situation will give the developing nations an economic edge in the global marketplace. Furthermore, they argue, the costs of switching fuels and limiting energy use will severely damage the economy, and the negative effects of this economic depression will outweigh any theoretical gains to be had by delaying global warming.
According to the information given in the passage, which of the following would be most likely to help a nation meet the reduction targets of the Kyoto Protocol
A、A、power plant switches its fuel source from bituminous to anthracite coal, thereby reducing the amount of sulfur dioxide that the plant releases into the air.
B、An aluminum processing plant alters the mix of the chemicals used in its smelting process so that the amount of nitrous disulfide emitted by the plant is increased and the amount of sulfur hexafluoride is decreaseD、
C、A、petrochemical plant that produces plastics adjusts its manufacturing process so that the ratio of HFCs to PFCs emitted by the plant is altered from 1:12 to 1:8.
Since the 1970s, a multitude of scientists from the fields of climatology, oceanography, and biology have been warning the governments of the world that unless human societies reduce their emissions of "greenhouse gases"--gases such as carbon dioxide and methane that increase the capacity of the atmosphere to retain heat--world-wide global warming caused by these gases will result in catastrophic consequences for people and the environment. InDecember 1997, a group of delegates from over 100 nations gathered together in Kyoto, Japan, in order to work out the details of the Kyoto Protocol to the United Nations FrameworkConvention onClimateChange, the most comprehensive international effort to date to combat the rise of greenhouse gas emissions.
The chief goal of the Kyoto Protocol is for industrialized nations to reduce their emissions of green-house gases by 5.2 percent compared to 1990 levels. The gases targeted by the protocol are carbon dioxide, methane, nitrous oxide, sulfur hexafluoride, HFCs, and PFCs. The protocol contains some provisions for developing nations, but as the per-capita emissions of greenhouse gases from these nations are much lower than those of industrialized nations, the majority of the reductions called for by the protocol come from theEuropean Union (8 percent reduction from 1990 levels), the United States (7 percent reduction), and Japan (6 percent reduction).
Proponents of the Kyoto Protocol maintain that although it is not sufficient by itself to halt global warming, it represents an important first step toward a sustainable global economy. These proponents argue that most of the reductions in green-house gases can be achieved through improvements in efficiency and the use of cleaner fuels. While they concede that the provisions of the protocol may slow economic growth in affected nations, they maintain that the potential economic costs are far outweighed by the benefits of avoiding the ravages of global warming, which they say could include rising sea levels, erratic weather patterns, and long-term reductions in biodiversity.
Critics of the Kyoto Protocol argue that it is unnecessary, unfair, and too costly to implement. It is unnecessary, they maintain, because the scientific community is still divided on the questions of whether global warming is happening and, if it is, whether human activity is the cause. They say it is unfair because the provisions primarily limit the emissions growth of industrialized nations while giving free rein to developing nations such as India, which actually emit more greenhouse gases than many industrialized nations, and that this situation will give the developing nations an economic edge in the global marketplace. Furthermore, they argue, the costs of switching fuels and limiting energy use will severely damage the economy, and the negative effects of this economic depression will outweigh any theoretical gains to be had by delaying global warming.
According to the information given in the passage, which of the following would be most likely to help a nation meet the reduction targets of the Kyoto Protocol
A、A、power plant switches its fuel source from bituminous to anthracite coal, thereby reducing the amount of sulfur dioxide that the plant releases into the air.
B、An aluminum processing plant alters the mix of the chemicals used in its smelting process so that the amount of nitrous disulfide emitted by the plant is increased and the amount of sulfur hexafluoride is decreaseD、
C、A、petrochemical plant that produces plastics adjusts its manufacturing process so that the ratio of HFCs to PFCs emitted by the plant is altered from 1:12 to 1:8.
【单选题】The questions in this group are based on the content of a passage.After reading the passage, choose the best answer to each question.Answer all questions following the passage on the basis of what is stated or implied in the passage.
The collapse of the stock "bubble" of Internet-related companies in 2000-2001 has resulted in more than its fair share of analysis, hand-wringing, and finger-pointing.A、panel discussion at a recent Technology Today conference in Santa Monica produced a heated debate between two former luminaries of the dot.corn world: investment banker Pat Verhofen and Sue Mickelson, founder andCEO of Internet retailer Frizbeez.com.
Verhofen fired the opening shot by placing blame for the collapse of Internet stocks on the shoulders of Internet entrepreneurs who aggressively promoted ideas without viable business models. These entrepreneurs were both irresponsible and deceptive, Verhofen argued, to take investors’ money to fund operations that could not reasonably turn a profit, such as giving computers away for free or selling bulky objects, such as dog food or furniture, over the Internet. Many of these companies, he suggested, were little more than arrangements of smoke and mirrors designed to separate investors from their money.
Mickelson responded that Verhofen was like a fox in a henhouse blaming the rooster for all the dead chickens.Entrepreneurs cannot be blamed, she argued, for trying to make money for themselves and other people, because that is what entrepreneurs do. She also stated that you cannot know what ideas will or will not work until you try them; contemporaries of the Wright brothers said that a heavier-than-air aircraft could never work, and look at the skies today.
Mickelson instead placed the blame on the unscrupulous bankers and fund managers who hyped Internet stocks in order to cash in on fees from IPOs and trades. In contrast to entrepreneurs, these financial types actually do have a responsibility to offer only sound financial advice to their clients. If anyone should bear the blame, she argued, it should be people like Pat Verhofen.
Indigo Smith, the moderator of the panel, responded that perhaps the true fault lay with the common investors, who should not have invested in technology stocks in the first place if they lacked the knowledge to do so properly. While she expressed sympathy for those elderly investors who lost substantial portions of their retirement savings on flimsy Internet stocks, she observed that no one forced them to invest in those stocks.
If Verhofen’s arguments and statements are all correct, which of the following statements can accurately be inferred
A、Biotechnology executives who aggressively raise investment capital for bioengineered products with no conceivable market should be held responsible if biotechnology stocks crash.
B、Investors should make financial decisions only with the advice of qualified financial advisors, such as investment bankers or fund managers.
C、If people lose money on investments that they inadequately researched, they have only themselves to blame.
D、If insurance companies provide home insurance for homes built in a hurricane zone and those homes are subsequently all destroyed by a major hurricane, the insurance company should be blamed for any investment losses suffered by its shareholders.
E、The collapse of Internet stocks would not have occurred if companies had not attempted to sell bulky items, like dog food, over the Internet.
The collapse of the stock "bubble" of Internet-related companies in 2000-2001 has resulted in more than its fair share of analysis, hand-wringing, and finger-pointing.A、panel discussion at a recent Technology Today conference in Santa Monica produced a heated debate between two former luminaries of the dot.corn world: investment banker Pat Verhofen and Sue Mickelson, founder andCEO of Internet retailer Frizbeez.com.
Verhofen fired the opening shot by placing blame for the collapse of Internet stocks on the shoulders of Internet entrepreneurs who aggressively promoted ideas without viable business models. These entrepreneurs were both irresponsible and deceptive, Verhofen argued, to take investors’ money to fund operations that could not reasonably turn a profit, such as giving computers away for free or selling bulky objects, such as dog food or furniture, over the Internet. Many of these companies, he suggested, were little more than arrangements of smoke and mirrors designed to separate investors from their money.
Mickelson responded that Verhofen was like a fox in a henhouse blaming the rooster for all the dead chickens.Entrepreneurs cannot be blamed, she argued, for trying to make money for themselves and other people, because that is what entrepreneurs do. She also stated that you cannot know what ideas will or will not work until you try them; contemporaries of the Wright brothers said that a heavier-than-air aircraft could never work, and look at the skies today.
Mickelson instead placed the blame on the unscrupulous bankers and fund managers who hyped Internet stocks in order to cash in on fees from IPOs and trades. In contrast to entrepreneurs, these financial types actually do have a responsibility to offer only sound financial advice to their clients. If anyone should bear the blame, she argued, it should be people like Pat Verhofen.
Indigo Smith, the moderator of the panel, responded that perhaps the true fault lay with the common investors, who should not have invested in technology stocks in the first place if they lacked the knowledge to do so properly. While she expressed sympathy for those elderly investors who lost substantial portions of their retirement savings on flimsy Internet stocks, she observed that no one forced them to invest in those stocks.
If Verhofen’s arguments and statements are all correct, which of the following statements can accurately be inferred
A、Biotechnology executives who aggressively raise investment capital for bioengineered products with no conceivable market should be held responsible if biotechnology stocks crash.
B、Investors should make financial decisions only with the advice of qualified financial advisors, such as investment bankers or fund managers.
C、If people lose money on investments that they inadequately researched, they have only themselves to blame.
D、If insurance companies provide home insurance for homes built in a hurricane zone and those homes are subsequently all destroyed by a major hurricane, the insurance company should be blamed for any investment losses suffered by its shareholders.
E、The collapse of Internet stocks would not have occurred if companies had not attempted to sell bulky items, like dog food, over the Internet.
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