The word “they” in the sentence “since they could place” （Par

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• 1This text is most probably taken from an article entitled “”。

  A.Gehman's Comments on Columbia Accident

  B.An Inquiry into Columbia Accident

  C.Shedding Light on Shuttle's Safety

  D.NASA's Problems Being Exposed

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• 2What are the functions of studying philosophies mentioned in the passage？

  A.The study of philosophies would make our own idea flexible.

  B.The study of philosophies would help prepare us for the future and guide our actions.

  C.The study of philosophies would enable us to understand how things develop as to better tackle the future.

  D.All of the abov

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• 3How many kinds of ideas are there about the future？

  A.Two

  B.Three

  C.Four

  D.Five

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• 4What field can our descendants know？

  A.The origin of human beings

  B.Some questions that perplex us today.

  C.Many philosophical problems which Marx and Engels wrote rather little.

  D.The futur

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• 5The example of what Plato thought in the passage shows that

  A.the development of science really can solve a great many of the problems on which philosophers still argue

  B.plato knew nothing about Physics

  C.the scientists have achieved a lot in terms of light theory

  D.different people have different ways of perception

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• 6According to the writer， what may chiefly be responsible for the Columbia accident？

  A.A supposed damage to the left wing of the spacecraft.

  B.The deliberate rejection of satellite images.

  C.A sense of sentiment and arrogance involve

  D.D.The space agency's inaction during its mission.

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• 7As mentioned in the text， the Wednesday's hearing revolved around

  A.the precise capabilities of spy satellites in orbit

  B.NASA's indecisions against checking upon the Columbia

  C.NASA's rejection of satellite images offered

  D.the coordination between NASA and military offices

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• 8Which of the following can best describe Gehman's attitude towards satellite images？

  A.Apprehensive.

  B.Credulous.

  C.Indifferent.

  D.Cautious.

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• 9The writer holds that the potential to make healthy body tissues will

  A.aggravate moral issues of human cloning

  B.bring great benefits to human beings

  C.help scientists decode body instructions

  D.involve employing surgical instruments

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• 10The word “rejuvenated” （Par

  A.5） most probably meansA.modified

  B.recollected

  C.classified

  D.reactivated

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