[单项选择]According to the scientists, life came from ___________.
A. combination of energy and biochemical materials
B. combination of nucleic acid and amino molecules
C. nucleic acid molecules
D. amino acid molecules

[单项选择]According to the scientists, life came from ___________.


A. combination of energy and biochemical materials
B. combination of nucleic acid and amino molecules
C. nucleic acid molecules
D. amino acid molecules

[单项选择]Chinese scientists moved people away from the coming quake zone after noticing the strange behavior of some animals and physical changes in earth.

[单项选择]According to the passage, a person's life, from his birth to his death,______.
A. is constantly shaping the cultural traditions of his people
B. is predominated by traditional custom
C. is continually influenced by the habits of other communities
D. is chiefly influenced by the people around him

[单项选择]

Public distrust of scientists stems in part from the blurring of boundaries between science and technology, between discovery and manufacture. Most governments, perhaps all governments, justify public expenditure on scientific research in terms of the economic benefits the scientific enterprise has brought in the past and will bring in the future. Politicians remind their voters of the splendid machines ’ our scientists’ have invented, the new drugs to relieve old ailments (病痛), and the new surgical equipment and techniques by which previously intractable (难治疗的) conditions may now be treated and lives saved. At the same time, the politicians demand of scientists that they tailor their research to ’economics needs’, that they award a higher priority to research proposals that are ’near the market’ and can be translated into the greatest return on investment in the shortest time. Dependent, as they are, on politicians for much of their funding, s
A. Support from the votes.
B. Quick economic returns.
C. The reduction of public expenditure.
D. The budget for a research project.

[单项选择]According to the passage, life is different from college in which _________.
A. we can nurture the belief that youth is forever
B. we can take part-time job to send our parents to Florida
C. our dreams burst
D. our grandparents once dreamed of

[单项选择]Coffee originally came from （）
A. Brazil
B. Colombia
C. Ethiopia
D. Arabia

[单项选择]The first immigrants in American history came from ______, some running away from religious and political persecution and some coming as adventures from Europe for a better life.


A. England and Germany
B. England and Ireland
C. England and the Netherlands
D. England and Spain

[单项选择]The Declaration of Independence came from the theory of British philosopher ______.
A. Paul Revere
B. John Locke
C. Cornwallis
D. Frederick Douglass