Which of the following is closest in meaning to the expression " at bay" in Paragraph One？

Which of the following does the author most probably agree with?

A．Climate changes have nothing to do with the malaria.

B．There are scientists who do not treat the data record in an exact way.

C．Future-oriented climate studies have more advantages than the past-oriented ones.

D．Important warnings can be saved in conclusions if considered in models.

Which of the following statements is CORRECT as for the new Nature paper?

A．The paper found that the warming climate had led to more malaria.

B．The paper aroused disputes about malaria and climate change after publication.

C．The paper concluded that the spread of malaria could be explained by climate changes.

D．The paper tried to study the effect of climate changes on malaria during the past 20th century.

The Nature paper suggests______may be an influential factor affecting malaria.

A．warmer climate

B．human involvement

C．drought

D．biology diversity

third paragraph?

A．They do not take other factors like human interventions into consideration.

B．They compare the effect predicted in the future with that of the past.

C．They predict the result precisely even at regional level but do not claim it.

D．They believe that malaria increases in case of drought.

The major defect of the current climate-study models lies in their______.

A．simplifying assumptions

B．comparative methodology

C．arbitrary assertions

D．heavy dependence on future

lem?

A．Skepticism.

B．Technical competence.

C．Logical thinking.

D．A sense of history.

The author considers the polarization of society as______.

A．a further advancement toward a democratic state

B．a factor that helps reduce unemployment among the needy

C．a consequence resulting from ignoring moral disciplines in business

D．an aggravation of the disadvantaged status of certain groups of people

When people fail to get guidance from traditional ethical basis,______.

A．they will denounce the old value system

B．they may turn to politicians or religious leaders

C．they will find support from schools or themselves

D．they may become religious or political extremists

Why are ethical rules more difficult to apply today?

A．Because business is no longer a matter of interpersonal act.

B．Because the movement of capital has become the result of all activities.

C．Because people are not knowledgeable enough to make sensible judgment.

D．Because making profits has become dominant in doing all businesses.

What are the two alternatives of the dilemma the author is referring to?

A．Growing immoral activities and weakening moral basis.

B．Financial scandals and political corruption.

C．Potential profits and the ease with which they can be made from insider trading, etc.

D．Ethical discipline and illegal trading.